Adware.Gexin.12407

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Network activity:

Connects to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) qin####.com.www.####.com:80
TCP(HTTP/1.1) sdk-ope####.g####.com:80
TCP(HTTP/1.1) aexcep####.b####.qq.com:8011
TCP(HTTP/1.1) aexcep####.b####.qq.com:8012
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) a####.exc.mob.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sz-syd-####.c####.saa####.com:80
TCP(TLS/1.0) communi####.c####.saa####.com:443
TCP(TLS/1.0) show####.syd.com.cn:443
TCP(TLS/1.0) ope####.b####.com:443
TCP(TLS/1.0) sz-syd-####.c####.saa####.com:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5227

DNS requests:

7j####.c####.z0.####.com
a####.b####.qq.com
a####.exc.mob.com
aexcep####.b####.qq.com
and####.b####.qq.com
c####.g####.ig####.com
c-h####.g####.com
commu####.syd.com.cn
mt####.go####.com
ope####.b####.com
pub-####.qin####.com
sdk-ope####.g####.com
sdk.c####.ig####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
show####.syd.com.cn
sz.s####.com.cn

HTTP GET requests:

qin####.com.www.####.com/tdata_EDT369
sz-syd-####.c####.saa####.com/plugin/mediaelement/build/jquery.js
sz-syd-####.c####.saa####.com/plugin/mediaelement/build/mediaelement-and...
sz-syd-####.c####.saa####.com/plugin/mediaelement/build/mediaelementplay...
t####.c####.q####.####.com/config/hz-hzv6.conf
t####.c####.q####.####.com/tdata_Rnl693
t####.c####.q####.####.com/tdata_Soq141
t####.c####.q####.####.com/tdata_fEV688
t####.c####.q####.####.com/tdata_siA393

HTTP POST requests:

a####.exc.mob.com/errconf
aexcep####.b####.qq.com:8011/rqd/async
aexcep####.b####.qq.com:8012/rqd/async
and####.b####.qq.com/rqd/async
c-h####.g####.com/api.php?format=####&t=####
sdk-ope####.g####.com/api.php?format=####&t=####
sdk-ope####.g####.com/api.php?format=####&t=####&d=####&k=####

File system changes:

Creates the following files:

/data/data/####/.duid
/data/data/####/.lock
/data/data/####/.vpl_lock
/data/data/####/44cd98bda81a6b6ae3d2921f1692e6a1b8f9b18d879f1e1....0.tmp
/data/data/####/63779ff99e9cfa84e12cf933bbc872ec9a55f19e84f8be6....0.tmp
/data/data/####/AndroidTTS.xml
/data/data/####/SydChannel
/data/data/####/SydDataBase.db
/data/data/####/SydDataBase.db-journal
/data/data/####/SydDistrict
/data/data/####/SydNewsContent164389
/data/data/####/SydNewsContent164396
/data/data/####/SydNewsList1451_0
/data/data/####/SydNewsList1453_0
/data/data/####/SydNewsList1454_0
/data/data/####/SydNewsList2860_0
/data/data/####/SydNewsList2862_0
/data/data/####/SydNewsList2874_0
/data/data/####/SydNewsList3121_0
/data/data/####/SydNewsList3122_0
/data/data/####/SydNewsList3147_0
/data/data/####/SydNewsList3179_0
/data/data/####/SydNewsList3180_0
/data/data/####/SydNewsList3208_0
/data/data/####/SydNewsList3262_0
/data/data/####/SydNewsList3263_0
/data/data/####/SydNewsList3391_0
/data/data/####/SydPropertyValue
/data/data/####/SydProvince
/data/data/####/ThrowalbeLog.db-journal
/data/data/####/a669e3e5ce4062fd029b4d44303280730ff523b27f18071....0.tmp
/data/data/####/bb932fc1515c2659ddc754121345c8fe1811d1e0a85f80c....0.tmp
/data/data/####/bcec647873207fbb5c4a069e3c4540cce5626557bbae283....0.tmp
/data/data/####/bugly_db_legu-journal
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/e645a6be551e
/data/data/####/f_000001
/data/data/####/f_000002
/data/data/####/f_000003
/data/data/####/f_000004
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gkt-journal
/data/data/####/gx_sp.xml
/data/data/####/index
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal.tmp
/data/data/####/libcuid.so
/data/data/####/libnfix.so
/data/data/####/libshella-3.0.0.0.so
/data/data/####/libufix.so
/data/data/####/local_crash_lock
/data/data/####/mix.dex
/data/data/####/mob_commons_1
/data/data/####/mob_sdk_exception_1
/data/data/####/native_record_lock
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushk.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/run.pid
/data/data/####/security_info
/data/data/####/tdata_Rnl693
/data/data/####/tdata_Rnl693.jar
/data/data/####/tdata_Soq141
/data/data/####/tdata_Soq141.jar
/data/data/####/tdata_fEV688
/data/data/####/tdata_fEV688.jar
/data/data/####/tdata_siA393
/data/data/####/tdata_siA393.jar
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/media/####/.artc_lock
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/.di
/data/media/####/.dic_lock
/data/media/####/.duid
/data/media/####/.globalLock
/data/media/####/.im_lock
/data/media/####/.lecd
/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/####/app.db
/data/media/####/bd_etts_common_speech_m15_mand_eng_high_am-mix...05.dat
/data/media/####/bd_etts_text.dat
/data/media/####/cn.com.syd.shenyangfinger.bin
/data/media/####/cn.com.syd.shenyangfinger.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/gkt-journal
/data/media/####/gktper
/data/media/####/tdata_Rnl693
/data/media/####/tdata_Soq141
/data/media/####/tdata_fEV688
/data/media/####/tdata_siA393
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

/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>/<Package>.service.DemoPushService 25498 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-3.0.0.0.so
chmod 700 <Package Folder>/tx_shell/libufix.so
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 -d -v threadtime
mount
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.DemoPushService 25498 300 0

Loads the following dynamic libraries:

BDSpeechDecoder_V1
Bugly
bd_etts
bdtts
getuiext2
gnustl_shared
libnfix
libshella-3.0.0.0
libufix
nfix
ufix

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CFB-NoPadding
AES-ECB-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-PKCS5Padding
AES-GCM-NoPadding

Uses special library to hide executable bytecode.

Gets information about phone status (number, IMEI, etc.).

Gets information about installed apps.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

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