Adware.Gexin.5864

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) pub-####.qin####.com:80
TCP(HTTP/1.1) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sh.wagbr####.aliyun####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) www.dm####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) res####.a####.com:80
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) lbs.net####.im:443
TCP(TLS/1.0) dt.net####.im:443
TCP(TLS/1.0) nim.qi####.com:443
TCP(TLS/1.0) res####.a####.com:443
TCP(TLS/1.0) qy-swa####.qi####.com:443
TCP c####.g####.ig####.com:5225
TCP sdk.o####.t####.####.com:5224
TCP l####.net####.im:8080

DNS requests:

7j####.c####.z0.####.com
amap####.cn-hang####.oss####.####.com
and####.b####.qq.com
api####.a####.com
c####.g####.ig####.com
c-h####.g####.com
dt.net####.im
l####.net####.im
lbs.net####.im
nim.qi####.com
plb####.u####.com
pub-####.qin####.com
qy-swa####.qi####.com
res####.a####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
u####.u####.com
www.dm####.com

HTTP GET requests:

pub-####.qin####.com/tdata_EDT356
sh.wagbr####.aliyun####.com/sdkcoor/android/x86/libJni_wgs2gcj.so
t####.c####.q####.####.com/tdata_YYn966
t####.c####.q####.####.com/tdata_eOt091
ti####.c####.l####.####.com/config/hz-hzv3.conf
www.dm####.com/api/common/getsysvalue.htm?key=####&mobileType=####&versi...
www.dm####.com/api/h5/list.htm?mobileType=####&versionNumber=####
www.dm####.com/api/system/v1.1.17/checkVersion.htm?appFlag=####&mobileTy...
www.dm####.com/readFile.htm?path=####

HTTP POST requests:

and####.b####.qq.com/rqd/async?aid=####
c-h####.g####.com/api.php?format=####&t=####
res####.a####.com/v3/log/init
sdk.o####.p####.####.com/api.php?format=####&t=####
www.dm####.com/api/borrow/findIndex.htm
www.dm####.com/api/borrow/listIndex.htm

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/1004
/data/data/####/3fa4d2fb2a78
/data/data/####/NIMSDK_Config_d9be522ad76dfb873b72a1787cce6824.xml
/data/data/####/NIMSDK_Config_d9be522ad76dfb873b72a1787cce6824_...eb.xml
/data/data/####/Unicorn.d9be522ad76dfb873b72a1787cce6824.xml
/data/data/####/a==7.5.3&&1.3.5_1543918964269_envelope.log
/data/data/####/againRepaySp.xml
/data/data/####/basic_params.xml
/data/data/####/bugly_db_-journal
/data/data/####/clientSp.xml
/data/data/####/com.qiyukf.analytics.xml
/data/data/####/crashrecord.xml
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzOTE4OTYzMzkz;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzOTE4OTczMzg1;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzOTE4OTgyNTk3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzOTE4OTk3NDMz;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzOTE4OTkwOTA0;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzOTE5MDA0MjEx;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzOTE5MDExNTMy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzOTE5MDIyMjI2;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzOTE5MDMyMTgy;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQzOTE5MDQxMTM4;
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/hmdb
/data/data/####/hmdb-journal
/data/data/####/i==1.2.0&&1.3.5_1543918963452_envelope.log
/data/data/####/i==1.2.0&&1.3.5_1543918973416_envelope.log
/data/data/####/i==1.2.0&&1.3.5_1543918982740_envelope.log
/data/data/####/i==1.2.0&&1.3.5_1543918990962_envelope.log
/data/data/####/i==1.2.0&&1.3.5_1543918998161_envelope.log
/data/data/####/i==1.2.0&&1.3.5_1543919004245_envelope.log
/data/data/####/i==1.2.0&&1.3.5_1543919011551_envelope.log
/data/data/####/i==1.2.0&&1.3.5_1543919022258_envelope.log
/data/data/####/i==1.2.0&&1.3.5_1543919032204_envelope.log
/data/data/####/i==1.2.0&&1.3.5_1543919041152_envelope.log
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal
/data/data/####/journal.tmp
/data/data/####/libjiagu-907497959.so
/data/data/####/local_crash_lock
/data/data/####/loctemp.so
/data/data/####/logdb.db
/data/data/####/logdb.db-journal
/data/data/####/msg.db-journal
/data/data/####/multidex.version.xml
/data/data/####/pref.xml
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/qiyu_save_d9be522ad76dfb873b72a1787cce6824.xml
/data/data/####/run.pid
/data/data/####/security_info
/data/data/####/suggestSp.xml
/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/####/unicorn#cheese#
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.nomedia
/data/media/####/.umm.dat
/data/media/####/20181204102246.txt
/data/media/####/20181204102256.txt
/data/media/####/20181204102302.txt
/data/media/####/20181204102311.txt
/data/media/####/20181204102318.txt
/data/media/####/20181204102324.txt
/data/media/####/20181204102332.txt
/data/media/####/20181204102342.txt
/data/media/####/20181204102352.txt
/data/media/####/20181204102401.txt
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.zhongxi.dami.bin
/data/media/####/com.zhongxi.dami.db
/data/media/####/sysid.dat
/data/media/####/tdata_YYn966
/data/media/####/tdata_eOt091
/data/media/####/test.log
/data/media/####/tmp_u_20181204

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 type su
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.CustomPushService 24597 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
getprop
logcat -d -v threadtime
ls /sys/class/thermal
mount

Loads the following dynamic libraries:

Bugly
getuiext2
libjiagu-907497959

Uses the following algorithms to encrypt data:

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

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.).

Gets information about APN settings.

Gets information about installed apps.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

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