Adware.Gexin.6931

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) log.sn####.com.####.net:80
TCP(HTTP/1.1) c.api.ni####.com:80
TCP(HTTP/1.1) i.t####.com:80
TCP(HTTP/1.1) beacon####.aliy####.com:80
TCP(HTTP/1.1) s####.tc.qq.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) c2.g####.qq.com:80
TCP(HTTP/1.1) 2####.107.1.65:80
TCP(HTTP/1.1) d.g####.qq.com:80
TCP(HTTP/1.1) sh.wagbr####.aliyun####.com:80
TCP(HTTP/1.1) c.g####.qq.com:80
TCP(HTTP/1.1) mi.g####.qq.com:80
TCP(TLS/1.0) av1.x####.com:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) analy####.map.qq.com:443
TCP(TLS/1.0) c####.x####.com:443
TCP(TLS/1.0) ada####.m.ta####.com:443
TCP(TLS/1.0) 1####.217.168.238:443
TCP(TLS/1.0) s####.e.qq.com:443
TCP(TLS/1.0) 2####.107.1.97:443
TCP(TLS/1.0) sh.wagbr####.ta####.com:443
TCP(TLS/1.0) log.sn####.com.####.net:443
TCP(TLS/1.0) is.sn####.com:443

DNS requests:

a####.man.aliy####.com
ada####.ut.ta####.com
adas####.ut.ta####.com
analy####.map.qq.com
and####.b####.qq.com
av1.x####.com
beacon####.aliy####.com
c####.x####.com
c####.x####.com
c.api.ni####.com
c.g####.qq.com
c2.g####.qq.com
d.g####.qq.com
i.t####.com
imgc####.qq.com
is.sn####.com
log.sn####.com
log.u####.com
mi.g####.qq.com
mt####.go####.com
p####.ugd####.com
plb####.u####.com
qzones####.g####.cn
s####.e.qq.com
u####.u####.com

HTTP GET requests:

c.g####.qq.com/gdt_mclick.fcg?viewid=####&jtype=####&i=####&os=####&asi=...
c2.g####.qq.com/gdt_mclick.fcg?viewid=####&jtype=####&i=####&os=####&asi...
d.g####.qq.com/fcg-bin/gdt_appdetail.fcg?ico=####&op_appid=####
i.t####.com/a/33b62d820ad2f8cdacaeb8e8881495af5
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/DAAD72KAKAAPAAApBbjS57B44zn5rU.jpg/0?ck=####
s####.tc.qq.com/gdt/0/DAAiX10AKAAPAABcBcCk2XAn91LARZ.jpg/0?ck=####
s####.tc.qq.com/gdt/0/DAAiiAjAKAAPAABhBb5j0VBAX4KKWt.jpg/0?ck=####

HTTP POST requests:

and####.b####.qq.com/rqd/async
and####.b####.qq.com/rqd/async?aid=####
beacon####.aliy####.com/beacon/fetch/config/byappkey
c.api.ni####.com/api/app/appconfig
log.sn####.com.####.net/service/2/app_log_exception/?openudid=####&versi...
s####.e.qq.com/activate
s####.e.qq.com/click
s####.e.qq.com/launch
s####.e.qq.com/msg
sh.wagbr####.aliyun####.com/man/api?ak=####&s=####

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/1004
/data/data/####/1545529481647_2289
/data/data/####/1545529483365_2289
/data/data/####/1545529483957_2289
/data/data/####/1545529484195
/data/data/####/1545529484903_2289
/data/data/####/1545529485381_2289
/data/data/####/1545529488664_2508
/data/data/####/1545529491038_2508
/data/data/####/1545529491173
/data/data/####/1545529491583_2508
/data/data/####/1545529492812_2508
/data/data/####/1545529499238_2784
/data/data/####/1545529502693_2784
/data/data/####/1545529502812
/data/data/####/1545529506210_3013
/data/data/####/1545529507423_3013
/data/data/####/1545529509053_3013
/data/data/####/1545529509133
/data/data/####/1545529512572_3225
/data/data/####/1545529513659_3225
/data/data/####/1545529515386_3225
/data/data/####/1545529515462
/data/data/####/1545529519264_3435
/data/data/####/1545529521015_3435
/data/data/####/1545529521380_3435
/data/data/####/1545529521547
/data/data/####/1545529522068_3435
/data/data/####/1545529527722_3666
/data/data/####/1545529530351_3666
/data/data/####/1545529530750_3666
/data/data/####/1545529530882
/data/data/####/1545529534372_3896
/data/data/####/1545529536192_3896
/data/data/####/1545529536627_3896
/data/data/####/1545529536822
/data/data/####/1545529537060_3896
/data/data/####/1545529541499_4101
/data/data/####/1545529542412_4101
/data/data/####/1545529545139_4101
/data/data/####/1545529545201
/data/data/####/1545529546161_4101
/data/data/####/1545529546613_4101
/data/data/####/1545529547044_4101
/data/data/####/1545529547263_4101
/data/data/####/2289.yaqcookie
/data/data/####/2508.yaqcookie
/data/data/####/2784.yaqcookie
/data/data/####/3013.yaqcookie
/data/data/####/3225.yaqcookie
/data/data/####/3435.yaqcookie
/data/data/####/3666.yaqcookie
/data/data/####/3896.yaqcookie
/data/data/####/4101.yaqcookie
/data/data/####/5ead7c1916e321af3ee0d7d6aa595238.temp
/data/data/####/Alvin2.xml
/data/data/####/Archimedes_p1
/data/data/####/Archimedes_p2
/data/data/####/Archimedes_p3
/data/data/####/Archimedes_p4
/data/data/####/Archimedes_p5
/data/data/####/BuglySdkInfos.xml
/data/data/####/ContextData.xml
/data/data/####/GDTSDK.db
/data/data/####/GDTSDK.db-journal
/data/data/####/MultiDex.lock
/data/data/####/TDCloudSettingsConfig3C66CFC876494DB5986935FC23E5BE63.xml
/data/data/####/TD_app_pefercen_profile.xml
/data/data/####/TDpref_cloudcontrol1.xml
/data/data/####/TDpref_cloudcontrol1.xml.bak (deleted)
/data/data/####/TDpref_longtime.xml
/data/data/####/TDpref_longtime0.xml
/data/data/####/TDpref_shorttime.xml
/data/data/####/TDpref_shorttime0.xml
/data/data/####/TalingDataConfig3C66CFC876494DB5986935FC23E5BE63.xml
/data/data/####/UTCommon.xml
/data/data/####/a==7.5.3&&1.0.6.6_1545529482269_envelope.log
/data/data/####/ap.Lock
/data/data/####/bugly_db_-journal
/data/data/####/bugly_db_legu-journal
/data/data/####/com.tiantiankan.video_preferences.xml
/data/data/####/com_alibaba_aliyun_crash_defend_sdk_info
/data/data/####/crashrecord.xml
/data/data/####/d8586301737dad236609f2f39ad5e683.temp
/data/data/####/d8e67ec7102dca09281249c880d77711.temp
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ1NTI5NDg4NDcw;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ1NTI5NDgxMzM1;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ1NTI5NDk4OTky;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ1NTI5NTA1OTMx;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ1NTI5NTE4OTEy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ1NTI5NTEyMjk0;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ1NTI5NTI3NDA3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ1NTI5NTMzOTgy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ1NTI5NTQxMTQz;
/data/data/####/dW1weF9zaGFyZV8xNTQ1NTI5NDg1NjUw;
/data/data/####/devCloudSetting.cfg
/data/data/####/devCloudSetting.sig
/data/data/####/dexMethod.56647468.dat
/data/data/####/dexMethod.95223487.dat
/data/data/####/downloader.db-journal
/data/data/####/dso_deps
/data/data/####/dso_lock
/data/data/####/dso_manifest
/data/data/####/dso_state
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/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/####/httpdns_config_cache.xml
/data/data/####/i==1.2.0&&1.0.6.6_1545529481359_envelope.log
/data/data/####/i==1.2.0&&1.0.6.6_1545529488492_envelope.log
/data/data/####/i==1.2.0&&1.0.6.6_1545529499061_envelope.log
/data/data/####/i==1.2.0&&1.0.6.6_1545529505949_envelope.log
/data/data/####/i==1.2.0&&1.0.6.6_1545529512380_envelope.log
/data/data/####/i==1.2.0&&1.0.6.6_1545529519013_envelope.log
/data/data/####/i==1.2.0&&1.0.6.6_1545529527463_envelope.log
/data/data/####/i==1.2.0&&1.0.6.6_1545529534072_envelope.log
/data/data/####/i==1.2.0&&1.0.6.6_1545529541248_envelope.log
/data/data/####/info.xml
/data/data/####/iv
/data/data/####/libnfix.so
/data/data/####/libshella-2.9.0.2.so
/data/data/####/libufix.so
/data/data/####/libyaqbasic.56647468.so
/data/data/####/libyaqbasic.95223487.so
/data/data/####/libyaqpro.56647468.so
/data/data/####/libyaqpro.95223487.so
/data/data/####/local_crash_lock
/data/data/####/mix.dex
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/salt
/data/data/####/sdkCloudSetting.cfg
/data/data/####/sdkCloudSetting.sig
/data/data/####/security_info
/data/data/####/share.db-journal
/data/data/####/share_date.xml
/data/data/####/tdid.xml
/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_common_config.xml.bak
/data/data/####/umeng_common_location.xml
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/umeng_socialize.xml
/data/data/####/update_lc
/data/data/####/ut.db
/data/data/####/ut.db-journal
/data/data/####/yaqsdkcookie
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.nomedia
/data/media/####/.tcookieid
/data/media/####/.umm.dat
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/phone.cache
/data/media/####/sysid.dat
/data/media/####/testdream-857013112.temp
/data/media/####/testdream1317754097.temp
/data/media/####/testdream1394286707.temp
/data/media/####/testdream1401306570.temp
/data/media/####/testdream1611217191.temp
/data/media/####/testdream1877791316.temp
/data/media/####/testdream1996654456.temp
/data/media/####/testdream349473038.temp
/data/media/####/testdream433032207.temp

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
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.letv.release.version
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

Loads the following dynamic libraries:

Bugly
libimagepipeline
libnfix
libshella-2.9.0.2
libufix
libyaqbasic.56647468
libyaqbasic.95223487
libyaqpro.56647468
libyaqpro.95223487
nfix
ufix
ut_c_api

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES
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 APN settings.

Gets information about installed apps.

Gets information about running apps.

Displays its own windows over windows of other apps.

Technologies

Terminology

Training and education

Myths

Technical information

Curing recommendations

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