Adware.Gexin.2474

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Gains access to the ITelephony private interface.

Network activity:

Connecting to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) reso####.msg.xi####.net:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sdk-ope####.g####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) sug####.58.com:80
TCP(HTTP/1.1) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(TLS/1.0) api.map.b####.com:443
TCP(TLS/1.0) reportw####.58.com:443
TCP(TLS/1.0) chi####.58.com:443
TCP(TLS/1.0) o####.map.b####.com:443
TCP(TLS/1.0) api####.58.com.cn:443
TCP(TLS/1.0) loc.map.b####.com:443
TCP(TLS/1.0) regi####.xm####.xi####.com:443
TCP(TLS/1.0) bindw####.58.com:443
TCP 42.62.1####.27:5224
TCP t####.nz.ig####.com:5224
TCP sdk.o####.t####.####.com:5224
TCP 47.74.1####.157:5222
TCP 4####.62.94.2:443

DNS requests:

7j####.c####.z0.####.com
and####.b####.qq.com
api####.58.com.cn
api.map.b####.com
bindw####.58.com
c-h####.g####.com
chi####.58.com
loc.map.b####.com
o####.map.b####.com
pub-####.qin####.com
regi####.xm####.xi####.com
reportw####.58.com
reso####.msg.xi####.net
sdk-ope####.g####.com
sdk.c####.ig####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
sug####.58.com
t####.nz.g####.net
t####.nz.ge####.com
t####.nz.ig####.com

HTTP GET requests:

reso####.msg.xi####.net/gslb/?ver=####&type=####&conpt=####&uuid=####&li...
sug####.58.com/searchsuggest_cate.do?cityid=####&catid=####&num=####&cal...
t####.c####.q####.####.com/tdata_EDT356
t####.c####.q####.####.com/tdata_YYn966
t####.c####.q####.####.com/tdata_eOt091
ti####.c####.l####.####.com/config/bj-bjv4.conf
ti####.c####.l####.####.com/config/hz-bjv4.conf

HTTP POST requests:

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

Modified file system:

Creates the following files:

/data/data/####/.jg.ic
/data/data/####/1004
/data/data/####/ChinaHR.xml
/data/data/####/MultiDex.lock
/data/data/####/SP_AROUTER_CACHE.xml
/data/data/####/WBPUSH.xml
/data/data/####/WBPush.db-journal
/data/data/####/XMPushServiceConfig.xml
/data/data/####/authStatus_com.chinahr.android.m;baidulocation.xml
/data/data/####/base_info_sp.xml
/data/data/####/bugly_db_-journal
/data/data/####/com.chinahr.android.m;pushservice
/data/data/####/crashrecord.xml
/data/data/####/d3c3ae4e9c8c
/data/data/####/dso_deps
/data/data/####/dso_lock
/data/data/####/dso_manifest
/data/data/####/dso_state
/data/data/####/firll.dat
/data/data/####/gal.db
/data/data/####/gal.db-journal
/data/data/####/gdaemon_20161017
/data/data/####/geofencing.db
/data/data/####/geofencing.db-journal
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/hst.db
/data/data/####/hst.db-journal
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/libcuid.so
/data/data/####/libjiagu-1605037556.so
/data/data/####/local_crash_lock
/data/data/####/mipush.xml
/data/data/####/mipush_account.xml
/data/data/####/mipush_extra.xml
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/ofl.config
/data/data/####/ofl_location.db
/data/data/####/ofl_location.db-journal
/data/data/####/ofl_statistics.db
/data/data/####/ofl_statistics.db-journal
/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/####/tdata_YYn966
/data/data/####/tdata_YYn966.jar
/data/data/####/tdata_eOt091
/data/data/####/tdata_eOt091.jar
/data/data/####/tiny_data.data
/data/data/####/tiny_data.lock
/data/data/####/wmda.db
/data/data/####/wmda.db-journal
/data/data/####/wuba_loginParams.xml
/data/data/####/wuba_signature.xml
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/app.db
/data/media/####/com.chinahr.android.m.bin
/data/media/####/com.chinahr.android.m.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/conlts.dat
/data/media/####/log.lock
/data/media/####/log.txt
/data/media/####/log1.txt
/data/media/####/ls.db
/data/media/####/ls.db-journal
/data/media/####/tdata_YYn966
/data/media/####/tdata_eOt091
/data/media/####/test.log
/data/media/####/yoh.dat
/data/media/####/yol.dat
/data/media/####/yom.dat

Miscellaneous:

Executes next shell scripts:

/system/bin/sh -c getprop
/system/bin/sh -c type su
<Package Folder>/files/gdaemon_20161017 0 <Package>/com.wuba.wbpush.service.WBPushService 25036 300 0
cat /proc/cpuinfo
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu-1605037556.so
getprop
mount
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/com.wuba.wbpush.service.WBPushService 25036 300 0

Loads the following dynamic libraries:

Bugly
com_wuba_uc_rsa
getuiext2
libjiagu-1605037556
locSDK7b

Uses the following algorithms to encrypt data:

AES
AES-CBC-PKCS5Padding
AES-GCM-NoPadding
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES
AES-CBC-PKCS5Padding
AES-GCM-NoPadding

Uses special library to hide executable bytecode.

Gains access to geolocation.

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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