Adware.Gexin.2366

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Network activity:

Connecting to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) q####.q####.k####.####.com:80
TCP(HTTP/1.1) ti####.c####.l####.####.com:80
TCP(TLS/1.0) sh.wagbr####.alibaba####.com:443
TCP(TLS/1.0) k####.10####.com:443
TCP(TLS/1.0) lbs.net####.im:443
TCP(TLS/1.0) web####.net####.im:443
TCP(TLS/1.0) wa####.127.net:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP c####.g####.ig####.com:5225
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
and####.b####.qq.com
c####.g####.ig####.com
c-h####.g####.com
cdn.k####.10####.com
k####.10####.com
lbs.net####.im
plb####.u####.com
q####.q####.k####.####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
u####.u####.com
wa####.127.net
web####.net####.im

HTTP GET requests:

q####.q####.k####.####.com//quote/query/v2/queryQuoteList?
q####.q####.k####.####.com/quote/query/v2/queryQuotePoll?time=####
t####.c####.q####.####.com/tdata_YYn966
t####.c####.q####.####.com/tdata_eOt091
ti####.c####.l####.####.com//o_1ckgrdbcj1rppck1pu7ipoi6o4v.png
ti####.c####.l####.####.com//o_1cktjc557149212v6evul201f7p1b.png
ti####.c####.l####.####.com//o_1cldunka5102i1p1hu5pj5p10m11b.png
ti####.c####.l####.####.com//o_1clfps00bcmh17f91iek1e5rms220.png
ti####.c####.l####.####.com//o_1cml1me9k1tivb6q9bj1n1f103vi.png
ti####.c####.l####.####.com//o_1cn0iif7s1jk0krp30nf8p47ga.png
ti####.c####.l####.####.com//o_1cn0ldm9f1e9n6bl14cc1ilcsse1a.png
ti####.c####.l####.####.com/config/hz-hzv3.conf
ti####.c####.l####.####.com/o_1ckgrdbcj1rppck1pu7ipoi6o4v.png
ti####.c####.l####.####.com/o_1cktjc557149212v6evul201f7p1b.png
ti####.c####.l####.####.com/o_1cldunka5102i1p1hu5pj5p10m11b.png
ti####.c####.l####.####.com/o_1clfps00bcmh17f91iek1e5rms220.png
ti####.c####.l####.####.com/o_1cml1me9k1tivb6q9bj1n1f103vi.png
ti####.c####.l####.####.com/o_1cn0iif7s1jk0krp30nf8p47ga.png
ti####.c####.l####.####.com/o_1cn0ldm9f1e9n6bl14cc1ilcsse1a.png

HTTP POST requests:

and####.b####.qq.com/rqd/async?aid=####
c-h####.g####.com/api.php?format=####&t=####
sdk.o####.p####.####.com/api.php?format=####&t=####

Modified file system:

Creates the following files:

/data/anr/traces.txt
/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/1004
/data/data/####/6e9C5DNPEc5c22iQSDXTuB_IhHw.-1574200690.tmp
/data/data/####/MultiDex.lock
/data/data/####/NIMSDK_Config_64a94cbcf8d6d6d0167c9543752e10af.xml
/data/data/####/RKStorage-journal
/data/data/####/a==7.5.3&&2.5.3_1536599960045_envelope.log
/data/data/####/bugly_db_
/data/data/####/bugly_db_-journal
/data/data/####/com.bf.at_preferences.xml
/data/data/####/crashrecord.xml
/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/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/i==1.2.0&&2.5.3_1536599956664_envelope.log
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/libjiagu779585040.so
/data/data/####/local_crash_lock
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/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/####/security_info
/data/data/####/sys_log_1536599908676329.txt
/data/data/####/sys_log_1536599917502489.txt
/data/data/####/tdata_YYn966
/data/data/####/tdata_YYn966.jar
/data/data/####/tdata_eOt091
/data/data/####/tdata_eOt091.jar
/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/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/webviewCookiesChromiumPrivate.db-journal
/data/data/####/x4xnvClXQKEN_DblYMZLp9zTNdA.430975955.tmp
/data/data/####/yingxin.xml
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.nomedia
/data/media/####/.umm.dat
/data/media/####/app.db
/data/media/####/com.bf.at.bin
/data/media/####/com.bf.at.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/demo_20180910.log
/data/media/####/nim_sdk.log
/data/media/####/tdata_YYn966
/data/media/####/tdata_eOt091
/data/media/####/test.log

Miscellaneous:

Executes next 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 type su
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.MyGTPushService 23824 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu779585040.so
getprop
ls /sys/class/thermal
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.MyGTPushService 23824 300 0

Loads the following dynamic libraries:

Bugly
getuiext2
imagepipeline
libfb
libjiagu779585040
libreactnativejni
libyoga

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS7Padding
AES-GCM-NoPadding

Uses special library to hide executable bytecode.

Gains access to network information.

Gains access to telephone information (number, imei, etc.).

Gains access to information about installed applications.

Adds tasks to the system scheduler.

Displays its own windows over windows of other applications.

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