Adware.Gexin.8867

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) aexcep####.b####.qq.com:8011
TCP(HTTP/1.1) aexcep####.b####.qq.com:8012
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) et2-na6####.wagbr####.ali####.####.com:80
TCP(HTTP/1.1) pi####.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) ca####.gdt.qq.com:80
TCP(TLS/1.0) av1.x####.com:443
TCP(TLS/1.0) 2####.58.212.142:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) andro####.yanqing####.com:443
TCP(TLS/1.0) c####.x####.com:443
TCP(TLS/1.0) adt.x####.com:443

DNS requests:

a####.b####.qq.com
adt.x####.com
aexcep####.b####.qq.com
and####.b####.qq.com
andro####.yanqing####.com
andro####.yanqing####.com
av1.x####.com
c####.x####.com
c####.x####.com
ca####.gdt.qq.com
imgc####.qq.com
log.u####.com
mi.g####.qq.com
pi####.qq.com
plb####.u####.com
s####.e.qq.com
sdk.o####.p####.####.com
u####.u####.com

HTTP GET requests:

ca####.gdt.qq.com/canvas/1?viewid=####&ckn=####
et2-na6####.wagbr####.ali####.####.com/bar/get/5746d6a667e58e1914000b14/...
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...

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=####
pi####.qq.com/mstat/report/?index=####
s####.e.qq.com/activate
s####.e.qq.com/launch
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/####/1550723396732_2291
/data/data/####/1550723397150_2291
/data/data/####/1550723397559_2291
/data/data/####/1550723397585_2291
/data/data/####/1550723397682_2291
/data/data/####/1550723397769_2291
/data/data/####/1550723398072_2291
/data/data/####/1550723398121_2291
/data/data/####/1550723402791_2473
/data/data/####/1550723403071_2473
/data/data/####/1550723403421_2473
/data/data/####/1550723403817_2473
/data/data/####/1550723403985_2473
/data/data/####/1550723404222_2473
/data/data/####/1550723404276_2473
/data/data/####/1550723409654_2658
/data/data/####/1550723410546_2658
/data/data/####/1550723410834_2658
/data/data/####/1550723411061_2658
/data/data/####/1550723411201_2658
/data/data/####/1550723412317_2658
/data/data/####/1550723413648_2658
/data/data/####/1550723414219_2658
/data/data/####/1550723414555_2658
/data/data/####/1550723414772_2658
/data/data/####/1550723414846_2658
/data/data/####/1550723415392_2658
/data/data/####/1550723416273_2658
/data/data/####/1550723424115_2980
/data/data/####/1550723424244_2980
/data/data/####/1550723429371_3154
/data/data/####/1550723432929_3289
/data/data/####/1550723436446_3414
/data/data/####/1550723440085_3562
/data/data/####/1550723443381_3693
/data/data/####/1550723446319_3824
/data/data/####/1550723446418_3824
/data/data/####/1550723456580_3959
/data/data/####/1550723457572_3959
/data/data/####/1550723458043_3959
/data/data/####/1550723459160_3959
/data/data/####/2658.yaqcookie
/data/data/####/2980.yaqcookie
/data/data/####/3154.yaqcookie
/data/data/####/3289.yaqcookie
/data/data/####/3414.yaqcookie
/data/data/####/3562.yaqcookie
/data/data/####/3693.yaqcookie
/data/data/####/3824.yaqcookie
/data/data/####/3959.yaqcookie
/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/####/BUGLY_COMMON_VALUES.xml
/data/data/####/BuglySdkInfos.xml
/data/data/####/ContextData.xml
/data/data/####/GDTSDK.db
/data/data/####/GDTSDK.db-journal
/data/data/####/MultiDex.lock
/data/data/####/TDCloudSettingsConfigE40AE43F6B6A4A389B28F6E4204E2EAE.xml
/data/data/####/TD_app_pefercen_profile.xml
/data/data/####/TDpref_cloudcontrol1.xml
/data/data/####/TDpref_cloudcontrol2.xml
/data/data/####/TDpref_longtime.xml
/data/data/####/TDpref_longtime0.xml
/data/data/####/TDpref_longtime1.xml
/data/data/####/TDpref_shorttime.xml
/data/data/####/TDpref_shorttime0.xml
/data/data/####/TDpref_shorttime1.xml
/data/data/####/UserDATA.xml
/data/data/####/a==7.5.3&&3.6.6_1550723396644_envelope.log
/data/data/####/bugly_db_-journal
/data/data/####/bugly_db_legu-journal
/data/data/####/com.yanqingkong.m.BETA_VALUES.xml
/data/data/####/com.yanqingkong.m.mid.world.ro.xml
/data/data/####/com.yanqingkong.m_preferences.xml
/data/data/####/crashrecord.xml
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUwNzIzMzk1MDM4;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUwNzIzNDA4MTkx;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUwNzIzNDAxNDc1;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUwNzIzNDI4NDk4;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUwNzIzNDIyNzMy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUwNzIzNDM1NjM3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUwNzIzNDM5MDUw;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUwNzIzNDMxNTYx;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUwNzIzNDQ1Mjcz;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUwNzIzNDQyMjEx;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUwNzIzNDU0NTY2;
/data/data/####/devCloudSetting.cfg
/data/data/####/devCloudSetting.sig
/data/data/####/dexMethod.82560842.dat
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/gdt_ad_info.xml
/data/data/####/gdt_config.cfg
/data/data/####/gdt_plugin.jar
/data/data/####/gdt_plugin.jar.sig
/data/data/####/gdt_plugin.next.sig
/data/data/####/gdt_plugin.tmp
/data/data/####/gdt_plugin.tmp.sig
/data/data/####/gdt_suid
/data/data/####/getui_sp.xml
/data/data/####/hong.db-journal
/data/data/####/hsfirstopen.xml
/data/data/####/i==1.2.0&&3.6.6_1550723395380_envelope.log
/data/data/####/i==1.2.0&&3.6.6_1550723401648_envelope.log
/data/data/####/i==1.2.0&&3.6.6_1550723422954_envelope.log
/data/data/####/info.xml
/data/data/####/init_c1.pid
/data/data/####/init_er.pid
/data/data/####/iv
/data/data/####/libnfix.so
/data/data/####/libshella-2.9.1.2.so
/data/data/####/libufix.so
/data/data/####/libyaqbasic.82560842.so
/data/data/####/libyaqpro.82560842.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_com.yanqingkong.m-journal
/data/data/####/salt
/data/data/####/sdkCloudSetting.cfg
/data/data/####/sdkCloudSetting.sig
/data/data/####/security_info
/data/data/####/sex_flag_name.xml
/data/data/####/tdid.xml
/data/data/####/tencent_analysis.db_com.yanqingkong.m-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_location.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/####/-927843996
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.nomedia
/data/media/####/.umm.dat
/data/media/####/19-02-21 04;29;54.txt
/data/media/####/19-02-21 04;30;00.txt
/data/media/####/19-02-21 04;30;07.txt
/data/media/####/19-02-21 04;30;22.txt
/data/media/####/19-02-21 04;30;27.txt
/data/media/####/19-02-21 04;30;31.txt
/data/media/####/19-02-21 04;30;35.txt
/data/media/####/19-02-21 04;30;38.txt
/data/media/####/19-02-21 04;30;41.txt
/data/media/####/19-02-21 04;30;45.txt
/data/media/####/19-02-21 04;30;53.txt
/data/media/####/498645.sht
/data/media/####/498646.sht
/data/media/####/498647.sht
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/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
/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-2.9.1.2.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 -d -v threadtime
ls /sys/class/thermal

Loads the following dynamic libraries:

Bugly
MtaNativeCrash_v2
getuiext2
libnfix
libshella-2.9.1.2
libufix
libyaqbasic.82560842
libyaqpro.82560842
nfix
ufix

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES
AES-CBC-NoPadding
AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
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.

Displays its own windows over windows of other apps.

Technologies

Terminology

Training and education

Myths

Technical information

Curing recommendations

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