Adware.Gexin.3061

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Gains access to the ITelephony private interface.

Network activity:

Connecting to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) 61.55.1####.1:8088
TCP(HTTP/1.1) a####.exc.mob.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) p####.tc.qq.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) img.f####.com.####.net:80
TCP(HTTP/1.1) 61.55.1####.26:8088
TCP(HTTP/1.1) s####.e.qq.com:80
TCP(HTTP/1.1) 2####.192.139.100:8088
TCP(HTTP/1.1) c.g####.qq.com:80
TCP(HTTP/1.1) v.g####.qq.com:80
TCP(HTTP/1.1) f####.f####.com:80
TCP(HTTP/1.1) mi.g####.qq.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) 61.55.1####.34:8088
TCP(HTTP/1.1) d.g####.qq.com:80
TCP(HTTP/1.1) s####.tc.qq.com:80
TCP c####.g####.ig####.com:5227
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
a####.exc.mob.com
and####.b####.qq.com
c####.g####.ig####.com
c-h####.g####.com
c.g####.qq.com
d.g####.qq.com
f####.f####.com
img.f####.com
imgc####.qq.com
mi.g####.qq.com
mt####.go####.com
p####.ugd####.com
pub-####.qin####.com
qzones####.g####.cn
s####.e.qq.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
v.g####.qq.com

HTTP GET requests:

c.g####.qq.com/gdt_mclick.fcg?viewid=####&jtype=####&i=####&os=####&asi=...
d.g####.qq.com/fcg-bin/gdt_appdetail.fcg?ico=####&op_appid=####
f####.f####.com/Flux4AdData.aspx?id=####&appversion=####
img.f####.com.####.net/Novel/166x235/0/189/000189221.jpg
img.f####.com.####.net/Novel/166x235/0/202/000202514.jpg
img.f####.com.####.net/Novel/166x235/0/205/000205285.jpg
img.f####.com.####.net/Novel/166x235/0/209/000209797.jpg
img.f####.com.####.net/Novel/166x235/0/210/000210485.jpg
img.f####.com.####.net/Novel/166x235/0/212/000212511.jpg
img.f####.com.####.net/Novel/166x235/0/212/000212744.jpg
img.f####.com.####.net/Novel/166x235/0/214/000214068.jpg
img.f####.com.####.net/Novel/166x235/0/219/000219129.jpg
img.f####.com.####.net/Novel/166x235/0/219/000219264.jpg
img.f####.com.####.net/Novel/166x235/0/219/000219307.jpg
img.f####.com.####.net/Novel/166x235/0/219/000219412.jpg
img.f####.com.####.net/Novel/166x235/0/219/000219608.jpg
img.f####.com.####.net/Novel/166x235/0/219/000219961.jpg
img.f####.com.####.net/Novel/166x235/0/220/000220662.jpg
img.f####.com.####.net/Novel/166x235/0/220/000220731.jpg
img.f####.com.####.net/Novel/166x235/0/222/000222255.jpg
img.f####.com.####.net/Novel/166x235/0/222/000222809.jpg
img.f####.com.####.net/ou/2018/20180815093800.png
img.f####.com.####.net/ou/2018/20180920144419.jpg
mi.g####.qq.com/gdt_mview.fcg?posw=####&posh=####&count=####&r=####&data...
mi.g####.qq.com/gdt_mview.fcg?posw=####&spsa=####&posh=####&count=####&r...
p####.tc.qq.com/qzone/biz/gdt/mob/sdk/v2/android01/banner.appcache
p####.tc.qq.com/qzone/biz/gdt/mob/sdk/v2/android01/banner.html
p####.tc.qq.com/qzone/biz/gdt/mob/sdk/v2/android01/images/ad_logo.png
p####.tc.qq.com/qzone/biz/gdt/mob/sdk/v2/android01/images/banner_close_b...
p####.tc.qq.com/qzone/biz/gdt/mob/sdk/v2/android01/images/bannerbg02.png
p####.tc.qq.com/qzone/biz/gdt/mob/sdk/v2/android01/images/bannerbg03.jpg
p####.tc.qq.com/qzone/biz/gdt/mob/sdk/v2/android01/images/bannerbg07.png
p####.tc.qq.com/qzone/biz/gdt/mob/sdk/v2/android01/images/close02.png
p####.tc.qq.com/qzone/biz/gdt/mob/sdk/v2/android01/images/close03.png
p####.tc.qq.com/qzone/biz/gdt/mob/sdk/v2/android01/images/download_icon....
p####.tc.qq.com/qzone/biz/gdt/mob/sdk/v2/android01/images/download_icon_...
p####.tc.qq.com/qzone/biz/gdt/mob/sdk/v2/android01/images/gdt_logo_black...
p####.tc.qq.com/qzone/biz/gdt/mob/sdk/v2/android01/images/icon-ad.png
p####.tc.qq.com/qzone/biz/gdt/mob/sdk/v2/android01/images/sdk_bg.png
p####.tc.qq.com/qzone/biz/gdt/mob/sdk/v2/android01/images/tc-gdt-sdk-ope...
p####.tc.qq.com/qzone/biz/gdt/mob/sdk/v2/android01/images/tsa_ad_logo.png
p####.tc.qq.com/qzone/biz/gdt/mob/sdk/v2/android01/images/tsa_logo.png
p####.tc.qq.com/qzone/biz/gdt/mob/sdk/v2/android01/js-release/20170821/b...
p####.tc.qq.com/qzone/biz/gdt/mob/sdk/v2/android01/js/lib/require.js
p####.tc.qq.com/qzone/biz/gdt/mob/sdk/v2/android02/images/tsa_ad_logo.png
p####.tc.qq.com/qzone/biz/gdt/mod/android/AndroidAllInOne/proguard/his/r...
s####.tc.qq.com/gdt/0/DAAD72KAKAAPAAApBbjS57B44zn5rU.jpg/0?ck=####
s####.tc.qq.com/gdt/0/DAAG5puABIABIAADBZt0d7AMAcjdai.png/0?ck=####
t####.c####.q####.####.com/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_EDT356
t####.c####.q####.####.com/tdata_SzD730
t####.c####.q####.####.com/tdata_ZCi456
v.g####.qq.com/gdt_stats.fcg?viewid=####&i=####&os=####&xp=####&gap=####

HTTP POST requests:

a####.exc.mob.com/errconf
and####.b####.qq.com/rqd/async
and####.b####.qq.com/rqd/async?aid=####
c-h####.g####.com/api.php?format=####&t=####
s####.e.qq.com/activate
s####.e.qq.com/click
s####.e.qq.com/msg
sdk.o####.p####.####.com/api.php?format=####&t=####
v.g####.qq.com/gdt_stats.fcg

Modified file system:

Creates the following files:

/data/data/####/-1154778678
/data/data/####/.duid
/data/data/####/.lock
/data/data/####/.vpl_lock
/data/data/####/1004
/data/data/####/2287.yaqcookie
/data/data/####/384416aec342
/data/data/####/394396164
/data/data/####/5ead7c1916e321af3ee0d7d6aa595238.temp
/data/data/####/ApplicationCache.db-journal
/data/data/####/BuglySdkInfos.xml
/data/data/####/GDTSDK.db
/data/data/####/GDTSDK.db-journal
/data/data/####/MultiDex.lock
/data/data/####/ThrowalbeLog.db-journal
/data/data/####/bugly_db_-journal
/data/data/####/bugly_db_legu-journal
/data/data/####/config.xml
/data/data/####/crashrecord.xml
/data/data/####/d8e67ec7102dca09281249c880d77711.temp
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/devCloudSetting.cfg
/data/data/####/devCloudSetting.sig
/data/data/####/dexMethod.82560842.dat
/data/data/####/f_000001
/data/data/####/f_000002
/data/data/####/f_000003
/data/data/####/faloodb.db-journal
/data/data/####/gdaemon_20161017
/data/data/####/gdt_config.cfg
/data/data/####/gdt_plugin.jar
/data/data/####/gdt_plugin.jar.sig
/data/data/####/gdt_plugin.tmp
/data/data/####/gdt_plugin.tmp.sig
/data/data/####/gdt_suid
/data/data/####/gx_sp.xml
/data/data/####/index
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/libnfix.so
/data/data/####/libshella-2.9.0.2.so
/data/data/####/libufix.so
/data/data/####/libyaqbasic.82560842.so
/data/data/####/libyaqpro.82560842.so
/data/data/####/local_crash_lock
/data/data/####/mfbook.db
/data/data/####/mfbook.db-journal
/data/data/####/mix.dex
/data/data/####/mob_commons_1
/data/data/####/mob_sdk_exception_1
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/okgo.db-journal
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/run.pid
/data/data/####/sdkCloudSetting.cfg
/data/data/####/sdkCloudSetting.sig
/data/data/####/security_info
/data/data/####/tdata_SzD730
/data/data/####/tdata_SzD730.jar
/data/data/####/tdata_ZCi456
/data/data/####/tdata_ZCi456.jar
/data/data/####/update_lc
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/yaqsdkcookie
/data/media/####/.artc_lock
/data/media/####/.di
/data/media/####/.dic_lock
/data/media/####/.duid
/data/media/####/.globalLock
/data/media/####/.im_lock
/data/media/####/.lesd_lock
/data/media/####/.mn_-1464060969
/data/media/####/.nomedia
/data/media/####/.pkg_lock
/data/media/####/.pkgs_lock
/data/media/####/.rc_lock
/data/media/####/.slw
/data/media/####/.ss_lock
/data/media/####/04fab51c026d77a927097a08cfbd75be2e6c2a4f292a00....0.tmp
/data/media/####/1bc7443b517677c0ac09f6e2c6caf5810dfc40dd0bf463....0.tmp
/data/media/####/5363f9fa3896beff062240d48f7b99bb2b4e4be0592c05....0.tmp
/data/media/####/6605faca7bd0625892cc8c9c73ace8871b9d9f069e1cec....0.tmp
/data/media/####/70db60c2f473627842eefc4fa04e4afa43399d34bf6eb2....0.tmp
/data/media/####/7a1a1f6a94328acec06120099ff5a756ea6bc61b0a1e36....0.tmp
/data/media/####/81ce9afd167eedc7966a8301bb87dad25f053e27ca3c6c....0.tmp
/data/media/####/833d2c3e815b14c367283b933178c429ea1f5938c0d3b6....0.tmp
/data/media/####/8fc81199536eb79d78f64c99f4bc8c4952659d3903cd40....0.tmp
/data/media/####/a28878119bdbc7af2458e4cb3976d60f159afdb7bc5ccc....0.tmp
/data/media/####/acf160b0d3c2408467da3ca2ba8b793393292e0734a6ea....0.tmp
/data/media/####/app.db
/data/media/####/b404ed958b3256ebd358958f72fcc6710752f16b1ca9f9....0.tmp
/data/media/####/b985fd63896af038b9c879633a9cd9dddd7619ab31aac0....0.tmp
/data/media/####/bfc1815800d1cb46a347391c198e0f67b48abeeaff61ca....0.tmp
/data/media/####/com.faloo.BookReader4Android.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/e2d1c02b2179829cfe04d79cd1f8502b7ee2e51f13e9f4....0.tmp
/data/media/####/eaae877e7b75aaa9e52b83055b407c361e64238c3cf80c....0.tmp
/data/media/####/f49f79c231ebb5b1ec168cecd94ce0c1332eca7f7e1065....0.tmp
/data/media/####/journal.tmp
/data/media/####/tdata_SzD730
/data/media/####/tdata_ZCi456
/data/media/####/test.log

Miscellaneous:

Executes next shell scripts:

/system/bin/sh -c getprop
/system/bin/sh -c getprop ro.aa.romver
/system/bin/sh -c getprop ro.board.platform
/system/bin/sh -c getprop ro.build.fingerprint
/system/bin/sh -c getprop ro.build.nubia.rom.name
/system/bin/sh -c getprop ro.build.rom.id
/system/bin/sh -c getprop ro.build.tyd.kbstyle_version
/system/bin/sh -c getprop ro.build.version.emui
/system/bin/sh -c getprop ro.build.version.opporom
/system/bin/sh -c getprop ro.gn.gnromvernumber
/system/bin/sh -c getprop ro.lenovo.series
/system/bin/sh -c getprop ro.lewa.version
/system/bin/sh -c getprop ro.meizu.product.model
/system/bin/sh -c getprop ro.miui.ui.version.name
/system/bin/sh -c getprop ro.vivo.os.build.display.id
/system/bin/sh -c type su
<Package Folder>/files/gdaemon_20161017 0 <Package>/com.igexin.sdk.PushService 25687 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 700 <Package Folder>/tx_shell/libnfix.so
chmod 700 <Package Folder>/tx_shell/libshella-2.9.0.2.so
chmod 700 <Package Folder>/tx_shell/libufix.so
getprop
getprop ro.aa.romver
getprop ro.board.platform
getprop ro.build.fingerprint
getprop ro.build.nubia.rom.name
getprop ro.build.rom.id
getprop ro.build.tyd.kbstyle_version
getprop ro.build.version.emui
getprop ro.build.version.opporom
getprop ro.gn.gnromvernumber
getprop ro.lenovo.series
getprop ro.lewa.version
getprop ro.meizu.product.model
getprop ro.miui.ui.version.name
getprop ro.vivo.os.build.display.id
getprop ro.yunos.version
logcat *:e *:i | grep (2287)
logcat *:e *:i | grep (2355)
logcat -d -v threadtime
mount
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/com.igexin.sdk.PushService 25687 300 0

Loads the following dynamic libraries:

Bugly
encrypt
getuiext2
libnfix
libshella-2.9.0.2
libufix
libyaqbasic.82560842
libyaqpro.82560842
nfix
ufix

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-ECB-PKCS7Padding
AES-GCM-NoPadding
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-ECB-NoPadding
AES-ECB-PKCS7Padding
AES-GCM-NoPadding
RSA-ECB-PKCS1Padding

Uses special library to hide executable bytecode.

Gains access to geolocation.

Gains access to network information.

Gains access to telephone information (number, imei, etc.).

Gains access to information about installed applications.

Adds tasks to the system scheduler.

Displays its own windows over windows of other applications.

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