Adware.Gexin.7533

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Accesses the ITelephony private interface.

Network activity:

Connects to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) aexcep####.b####.qq.com:8011
TCP(HTTP/1.1) api.q####.cc:80
TCP(HTTP/1.1) aexcep####.b####.qq.com:8012
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) s####.e.qq.com:80
TCP(HTTP/1.1) mi.g####.qq.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) pi####.qq.com:80
TCP(HTTP/1.1) s####.tc.qq.com:80
TCP(TLS/1.0) 1####.177.127.138:443
TCP(TLS/1.0) bds.sn####.com:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) is.sn####.com:443
TCP(TLS/1.0) s####.e.qq.com:443
TCP c####.g####.ig####.com:5227
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
a####.b####.qq.com
aexcep####.b####.qq.com
and####.b####.qq.com
api.q####.cc
bds.sn####.com
c####.g####.ig####.com
c-h####.g####.com
imgc####.qq.com
is.sn####.com
log.u####.com
mi.g####.qq.com
p####.ugd####.com
pi####.qq.com
plb####.u####.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
u####.u####.com

HTTP GET requests:

mi.g####.qq.com/gdt_mview.fcg?posw=####&spsa=####&posh=####&count=####&r...
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/DAAe4CuAKAAPAABjBbm3g4Bt7No8Es.jpg/0?ck=####
t####.c####.q####.####.com/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_bca864
t####.c####.q####.####.com/tdata_fyR930

HTTP POST requests:

aexcep####.b####.qq.com:8011/rqd/async
aexcep####.b####.qq.com:8012/rqd/async
and####.b####.qq.com/rqd/async
and####.b####.qq.com/rqd/async?aid=####
api.q####.cc/aos2/index/bannerlist
api.q####.cc/aos2/index/followcontentlist
api.q####.cc/aos2/index/recommentlist
api.q####.cc/aos2/message/sessionlist
api.q####.cc/aos2/tree/catlist
api.q####.cc/aos2/tree/navlist
api.q####.cc/aos2/tree/taglist
c-h####.g####.com/api.php?format=####&t=####
pi####.qq.com/mstat/report/?index=####
s####.e.qq.com/activate
s####.e.qq.com/launch
s####.e.qq.com/msg
sdk.o####.p####.####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/anr/traces.txt
/data/data/####/.imprint
/data/data/####/1002
/data/data/####/1004
/data/data/####/201901120207611.v1.crash
/data/data/####/201901120207924.v1.crash
/data/data/####/201901120207986.v1.crash
/data/data/####/201901120207990.v1.crash
/data/data/####/201901120208215.v1.crash
/data/data/####/201901120208674.v1.crash
/data/data/####/2687.yaqcookie
/data/data/####/3069.yaqcookie
/data/data/####/5ead7c1916e321af3ee0d7d6aa595238.temp
/data/data/####/Alvin2.xml
/data/data/####/BuglySdkInfos.xml
/data/data/####/ContextData.xml
/data/data/####/GDTSDK.db
/data/data/####/GDTSDK.db-journal
/data/data/####/MultiDex.lock
/data/data/####/SP_AROUTER_CACHE.xml
/data/data/####/a==7.5.0&&3.2.1_1547258836520_envelope.log
/data/data/####/bugly_db_-journal
/data/data/####/bugly_db_legu-journal
/data/data/####/cc.qzone.BETA_VALUES.xml
/data/data/####/cc.qzone.mid.world.ro.xml
/data/data/####/cc.qzone_preferences.xml
/data/data/####/crashrecord.xml
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ3MjU4ODM1NDQw;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ3MjU4ODQ3NTk0;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ3MjU4ODQxNzIw;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ3MjU4ODYwMDQ0;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ3MjU4ODc1NTY5;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ3MjU4ODg3NzI5;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ3MjU4ODk5MzQy;
/data/data/####/dW1weF9zaGFyZV8xNTQ3MjU4ODM4MDky;
/data/data/####/dW1weF9zaGFyZV8xNTQ3MjU4ODM4MjIw;
/data/data/####/devCloudSetting.cfg
/data/data/####/devCloudSetting.sig
/data/data/####/device_id.xml.xml
/data/data/####/dexMethod.36117467.dat
/data/data/####/dexMethod.68778890.dat
/data/data/####/downloader.db-journal
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/f87b401fa4c069fb092346915194df91.temp
/data/data/####/gdaemon_20161017
/data/data/####/gdt_config.cfg
/data/data/####/gdt_plugin.dex (deleted)
/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_stat.db
/data/data/####/gdt_stat.db-journal
/data/data/####/gdt_suid
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/i==1.2.0&&3.2.1_1547258835554_envelope.log
/data/data/####/i==1.2.0&&3.2.1_1547258841833_envelope.log
/data/data/####/i==1.2.0&&3.2.1_1547258847775_envelope.log
/data/data/####/i==1.2.0&&3.2.1_1547258860100_envelope.log
/data/data/####/i==1.2.0&&3.2.1_1547258877934_envelope.log
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal.tmp
/data/data/####/libnfix.so
/data/data/####/libshella-2.9.1.1.so
/data/data/####/libufix.so
/data/data/####/libyaqbasic.36117467.so
/data/data/####/libyaqbasic.68778890.so
/data/data/####/libyaqpro.36117467.so
/data/data/####/libyaqpro.68778890.so
/data/data/####/local_crash_lock
/data/data/####/mix.dex
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/pri_tencent_analysis.db_cc.qzone-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/####/sdk_config.xml
/data/data/####/security_info
/data/data/####/share.db-journal
/data/data/####/share_data.xml
/data/data/####/tdata_bca864
/data/data/####/tdata_bca864.jar
/data/data/####/tdata_fyR930
/data/data/####/tdata_fyR930.jar
/data/data/####/tencent_analysis.db_cc.qzone-journal
/data/data/####/tt_sdk_settings.xml
/data/data/####/ttopenadsdk.xml
/data/data/####/ttopensdk.db-journal
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/um_pri.xml
/data/data/####/umdat.xml
/data/data/####/umeng_common_config.xml
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/umeng_socialize.xml
/data/data/####/update_lc
/data/data/####/yaqsdkcookie
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.nomedia
/data/media/####/.umm.dat
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/app.db
/data/media/####/cc.qzone.bin
/data/media/####/cc.qzone.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/journal
/data/media/####/journal.tmp
/data/media/####/sysid.dat
/data/media/####/tdata_bca864
/data/media/####/tdata_fyR930
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

/system/bin/cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq
/system/bin/cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq
/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>/<Package>.receiver.GtPushReceiver 23801 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 700 <Package Folder>/tx_shell/libnfix.so
chmod 700 <Package Folder>/tx_shell/libshella-2.9.1.1.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.letv.release.version
getprop ro.lewa.version
getprop ro.meizu.product.model
getprop ro.miui.ui.version.name
getprop ro.smartisan.version
getprop ro.vivo.os.build.display.id
getprop ro.vivo.os.version
getprop ro.yunos.version
logcat -c
logcat -d -v threadtime
logcat -d -v time
ls /sys/class/thermal
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.receiver.GtPushReceiver 23801 300 0

Loads the following dynamic libraries:

Bugly
MtaNativeCrash_v2
getuiext3
libnfix
libshella-2.9.1.1
libufix
libyaqbasic.36117467
libyaqbasic.68778890
libyaqpro.36117467
libyaqpro.68778890
nfix
nms
ufix

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-ECB-PKCS5Padding
AES-ECB-PKCS7Padding
AES-GCM-NoPadding
RSA-ECB-PKCS1Padding

Uses special library to hide executable bytecode.

Gets information about location.

Gets information about network.

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

Gets information about installed apps.

Gets information about running apps.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

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