Adware.Gexin.5301

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####.exc.mob.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) gl####.w.kunl####.####.com:80
TCP(HTTP/1.1) hots####.r####.info:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(TLS/1.0) ssl.gst####.com:443
TCP(TLS/1.0) www.go####.com:443
TCP(TLS/1.0) x####.tc.qq.com:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) www.go####.nl:443
TCP(TLS/1.0) adser####.go####.com:443
TCP(TLS/1.0) www.gst####.com:443

DNS requests:

a####.exc.mob.com
adser####.go####.com
and####.b####.qq.com
hots####.r####.info
hotstor####.r####.info
plb####.u####.com
s.b####.g####.com
sdk.o####.p####.####.com
ssl.gst####.com
u####.u####.com
www.go####.com
www.go####.nl
www.gst####.com

HTTP GET requests:

gl####.w.kunl####.####.com/WechatIMG920.png?imageVi####

HTTP POST requests:

a####.exc.mob.com/errconf
and####.b####.qq.com/rqd/async
and####.b####.qq.com/rqd/async?aid=####
hots####.r####.info/feed/rec
hots####.r####.info/manage/conf/window
sdk.o####.p####.####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/anr/traces.txt
/data/data/####/.duid
/data/data/####/.imprint
/data/data/####/.lock
/data/data/####/.vpl_lock
/data/data/####/084708063be0a16c30eb622eb12d7f3a25ded269c845687....0.tmp
/data/data/####/1002
/data/data/####/1004
/data/data/####/BUGLY_COMMON_VALUES.xml
/data/data/####/MultiDex.lock
/data/data/####/ThrowalbeLog.db
/data/data/####/ThrowalbeLog.db-journal
/data/data/####/a==7.5.3&&1.0.2_1543180359643_envelope.log
/data/data/####/bugly_db_
/data/data/####/bugly_db_-journal
/data/data/####/bugly_db_legu
/data/data/####/bugly_db_legu-journal
/data/data/####/c0b80eaccf685a548905622abc1ec40ede1c300c1b82677....0.tmp
/data/data/####/cb6f801b-37ff-4ab6-8cc7-d2d19cd91613.zip
/data/data/####/changed_classes1.dex.dex
/data/data/####/changed_classes1.dex.dex (deleted)
/data/data/####/changed_classes1.dex.jar
/data/data/####/changed_classes2.dex.dex
/data/data/####/changed_classes2.dex.dex (deleted)
/data/data/####/changed_classes2.dex.jar
/data/data/####/com.waima.story.BETA_VALUES.xml
/data/data/####/crashrecord.xml
/data/data/####/crashrecord.xml.bak
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTgwMzU4OTQz;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTgwMzc4NzA2;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTgwMzczMjE5;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTgwMzg2NDEy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTgwMzg5NTI5;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTgwMzk0MDU3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTgwMzk2NzYz;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTgwMzk5MzMy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTgwNDA2Mjk2;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTgwNDA5MzM1;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTgwNDAzNjI3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTgwNDE0NDk4;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzMTgwNDEyMjA5;
/data/data/####/default.xml
/data/data/####/domain_1
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/getui_sp.xml
/data/data/####/hotstory.db-journal
/data/data/####/i==1.2.0&&1.0.2_1543180358939_envelope.log
/data/data/####/i==1.2.0&&1.0.2_1543180373556_envelope.log
/data/data/####/i==1.2.0&&1.0.2_1543180386459_envelope.log
/data/data/####/i==1.2.0&&1.0.2_1543180389721_envelope.log
/data/data/####/info.lock
/data/data/####/info.xml
/data/data/####/init_c1.pid
/data/data/####/init_er.pid
/data/data/####/journal.tmp
/data/data/####/libnfix.so
/data/data/####/libshella-2.9.0.2.so
/data/data/####/libufix.so
/data/data/####/local_crash_lock
/data/data/####/map_record.txt
/data/data/####/mix.dex
/data/data/####/mix.so
/data/data/####/mob_commons_1
/data/data/####/mob_sdk_exception_1
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/patch-3ce97a33.apk
/data/data/####/patch.apk
/data/data/####/patch.info
/data/data/####/patch.retry
/data/data/####/reg_record.txt
/data/data/####/resources.apk
/data/data/####/resources.arsc
/data/data/####/rqd_record.eup
/data/data/####/security_info
/data/data/####/sys_log_1543180397559302.txt
/data/data/####/sys_log_154318040949969.txt
/data/data/####/temp.apk
/data/data/####/test.dex.dex
/data/data/####/test.dex.dex (deleted)
/data/data/####/test.dex.jar
/data/data/####/tinker_own_config_com.waima.story.xml
/data/data/####/tinker_own_config_com.waima.story;pushservice.xml
/data/data/####/tinker_share_config.xml
/data/data/####/tmpPatch.apk
/data/data/####/tomb.zip
/data/data/####/tomb_1543180387785.txt
/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/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.artc_lock
/data/media/####/.cca.dat
/data/media/####/.di
/data/media/####/.dic_lock
/data/media/####/.duid
/data/media/####/.globalLock
/data/media/####/.im_lock
/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/####/.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
/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
cat /sys/class/net/wlan0/address
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.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
logcat -d -v threadtime Bugly-libunwind:S
ls /sys/class/thermal

Loads the following dynamic libraries:

Bugly
getuiext2
libnfix
libshella-2.9.0.2
libufix
nfix
pl_droidsonroids_gif
ufix

Uses the following algorithms to encrypt data:

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-GCM-NoPadding

Uses special library to hide executable bytecode.

Gets information about location.

Gets information about network.

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

Displays its own windows over windows of other apps.

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