Adware.Gexin.5358

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) a####.b####.qq.com:8012
TCP(HTTP/1.1) up####.sdk.jig####.cn:80
TCP(HTTP/1.1) st####.se####.com:80
TCP(HTTP/1.1) p####.tc.qq.com:80
TCP(HTTP/1.1) 1####.15.159.197:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) s####.e.qq.com:80
TCP(HTTP/1.1) a####.b####.qq.com:8011
TCP(HTTP/1.1) mi.g####.qq.com:80
TCP(HTTP/1.1) t####.j####.cn:80
TCP(HTTP/1.1) s####.tc.qq.com:80
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) t####.j####.cn:443
TCP(TLS/1.0) s####.j####.cn:443
UDP s.j####.cn:19000
TCP 1####.202.151.5:7007

DNS requests:

a####.b####.qq.com
aexcep####.b####.qq.com
and####.b####.qq.com
imgc####.qq.com
mi.g####.qq.com
p####.ugd####.com
plb####.u####.com
s####.e.qq.com
s####.j####.cn
s.j####.cn
sis.j####.io
st####.se####.com
t####.j####.cn
u####.u####.com
up####.sdk.jig####.cn

HTTP GET requests:

mi.g####.qq.com/gdt_mview.fcg?posw=####&spsa=####&posh=####&count=####&r...
p####.tc.qq.com/qzone/biz/gdt/mod/android/AndroidAllInOne/proguard/his/r...
s####.tc.qq.com/gdt/0/DAAVUSmAKAAPAABgBbh5RfCsdVt9OO.jpg/0?ck=####
st####.se####.com/app/server.json?t=####

HTTP POST requests:

a####.b####.qq.com:8011/rqd/async
a####.b####.qq.com:8012/rqd/async
and####.b####.qq.com/rqd/async
s####.e.qq.com/activate
s####.e.qq.com/launch
t####.j####.cn/
up####.sdk.jig####.cn/v1/push/sdk/postlist

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/16747b99-0425-4719-936d-3f5ae4d77850
/data/data/####/2446.yaqcookie
/data/data/####/2645.yaqcookie
/data/data/####/2758.yaqcookie
/data/data/####/2884.yaqcookie
/data/data/####/3027.yaqcookie
/data/data/####/3180.yaqcookie
/data/data/####/3300.yaqcookie
/data/data/####/3453.yaqcookie
/data/data/####/3607.yaqcookie
/data/data/####/3735.yaqcookie
/data/data/####/3875.yaqcookie
/data/data/####/397f1f39-6181-41b3-8029-0f405983af4d
/data/data/####/3fd89e47-0817-4f6a-b18e-348d76f8dae2
/data/data/####/4087.yaqcookie
/data/data/####/4232.yaqcookie
/data/data/####/4373.yaqcookie
/data/data/####/4512.yaqcookie
/data/data/####/4620.yaqcookie
/data/data/####/475397accde5ab46da3b89f2a5e6e964.temp
/data/data/####/4bea98b5-df0a-4878-a38a-7b5ad037160f
/data/data/####/56e7f897-1f09-4a84-ac92-0146a63415e3
/data/data/####/752ff28d-b154-43b0-891c-35a97a83d61c
/data/data/####/7c175bf6-d06b-4ed0-b315-6f2fa5be2412
/data/data/####/BuglySdkInfos.xml
/data/data/####/GDTSDK.db
/data/data/####/GDTSDK.db-journal
/data/data/####/JPushSA_Config.xml
/data/data/####/MultiDex.lock
/data/data/####/a68b4ce4-7f18-4b19-951f-8c49854a9dff
/data/data/####/a==7.5.3&&2.1.5_1543290640142_envelope.log
/data/data/####/appPackageNames_v2
/data/data/####/be527e15-9660-4a2d-82cd-2d2a6266cd51
/data/data/####/bugly_db_legu
/data/data/####/bugly_db_legu-journal
/data/data/####/cn.jpush.android.user.profile.xml
/data/data/####/cn.jpush.preferences.v2.rid.xml
/data/data/####/cn.jpush.preferences.v2.xml
/data/data/####/com.ftt.app_preferences.xml
/data/data/####/d502fd94-0f1c-43a5-bd3f-322f7e6fa999
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMjkwNTk4NDU5;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMjkwNjA4MzUz;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMjkwNjAwNTIw;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMjkwNjE0MDcw;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMjkwNjE3NzEz;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMjkwNjExNjU1;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMjkwNjI2NDQy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMjkwNjIwMzUx;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMjkwNjIzNjgx;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMjkwNjM2NzY2;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMjkwNjM5NTM3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMjkwNjMyMTUw;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMjkwNjQ2MTAx;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMjkwNjQxMTI3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMjkwNjQzNDM4;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMjkwNjU1OTgz;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMjkwNjUwMjE4;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMjkwNjUyNzg5;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMjkwNjc5NzM4;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMjkwNjgxNDU2;
/data/data/####/devCloudSetting.cfg
/data/data/####/devCloudSetting.sig
/data/data/####/dexMethod.78222786.dat
/data/data/####/dexMethod.82894129.dat
/data/data/####/df28e570-9f76-4052-a730-089110a944cf
/data/data/####/e63f63a4-96c8-4d03-bc12-ed89e0a37f48
/data/data/####/e7fc0cc8-b42b-41d9-a54c-7cb0fb37c057
/data/data/####/ec636b03-9e75-4176-b2f1-e05a29802bcb
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/ftt_db
/data/data/####/ftt_db-journal
/data/data/####/gdt_config.cfg
/data/data/####/gdt_plugin.dex
/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_suid
/data/data/####/i==1.2.0&&2.1.5_1543290598521_envelope.log
/data/data/####/info.xml
/data/data/####/jpush_device_info.xml
/data/data/####/jpush_stat_cache.json
/data/data/####/jpush_stat_cache_history.json
/data/data/####/jpush_statistics.db
/data/data/####/jpush_statistics.db-journal
/data/data/####/jpush_statistics.db-shm (deleted)
/data/data/####/jpush_statistics.db-wal
/data/data/####/jpush_uncaughtexception_file
/data/data/####/legu_tencent_analysis.db_com.ftt.app
/data/data/####/legu_tencent_analysis.db_com.ftt.app-journal
/data/data/####/libnfix.so
/data/data/####/libshella-2.9.0.2.so
/data/data/####/libufix.so
/data/data/####/libyaqbasic.78222786.so
/data/data/####/libyaqbasic.82894129.so
/data/data/####/libyaqpro.78222786.so
/data/data/####/libyaqpro.82894129.so
/data/data/####/local_crash_lock
/data/data/####/mix.dex
/data/data/####/mix.so
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/pri_legu_tencent_analysis.db_com.ftt.app
/data/data/####/pri_legu_tencent_analysis.db_com.ftt.app-journal
/data/data/####/sdkCloudSetting.cfg
/data/data/####/sdkCloudSetting.sig
/data/data/####/security_info
/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_common_location.xml
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/update_lc
/data/data/####/yaqsdkcookie
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.nomedia
/data/media/####/.push_deviceid
/data/media/####/.umm.dat
/data/media/####/sysid.dat

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 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
chmod 700 /data/user/0/<Package>/tx_shell/libnfix.so
chmod 700 /data/user/0/<Package>/tx_shell/libshella-2.9.0.2.so
chmod 700 /data/user/0/<Package>/tx_shell/libufix.so
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 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
ls /sys/class/thermal
ps

Loads the following dynamic libraries:

Bugly
jcore123
libnfix
libshella-2.9.0.2
libufix
libyaqbasic.78222786
libyaqbasic.82894129
libyaqpro.78222786
libyaqpro.82894129
nfix
ufix

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS7Padding
AES-ECB-NoPadding
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.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

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