Adware.Gexin.7512

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) c-h####.g####.com:80
TCP(HTTP/1.1) l####.tbs.qq.com:80
TCP(HTTP/1.1) q####.hzfa####.com:8903
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) q####.hzfa####.com:80
TCP(HTTP/1.1) s####.tc.qq.com:80
TCP(TLS/1.0) api.map.b####.com:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) o####.map.b####.com:443
TCP(TLS/1.0) loc.map.b####.com:443
TCP(TLS/1.0) and####.cli####.go####.com:443
TCP c####.g####.ig####.com:5224
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
and####.cli####.go####.com
api.map.b####.com
c####.g####.ig####.com
c-h####.g####.com
l####.tbs.qq.com
loc.map.b####.com
o####.map.b####.com
plb####.u####.com
q####.hzfa####.com
r####.wx.qq.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
u####.u####.com

HTTP GET requests:

q####.hzfa####.com/bg_logo.png
q####.hzfa####.com/css/news/index.css
q####.hzfa####.com/getListCategory.do
q####.hzfa####.com/getNewsById.do?newsId=####&memberId=####&device=####&...
q####.hzfa####.com/getNewsDetailsById.do?newsId=####&memberId=####&devic...
q####.hzfa####.com/getNewsList.do?cid=####&count=####&sno=####
q####.hzfa####.com/html/js/jquery.js
q####.hzfa####.com/html/js/layer/layer.js
q####.hzfa####.com/html/js/layer/theme/default/layer.css?v=####
q####.hzfa####.com/js/news/appInterface.js
q####.hzfa####.com/js/news/common.js
q####.hzfa####.com/js/news/pageInit.js
q####.hzfa####.com/js/util/time.js
q####.hzfa####.com/plugins/template.js
q####.hzfa####.com/plugins/video/css/video-js.css
q####.hzfa####.com/plugins/video/js/video.min.js
q####.hzfa####.com:8903/img/picture/20190111/M_6622fd50-392c-4753-8ecb-8...
q####.hzfa####.com:8903/img/picture/20190111/M_f386d0861-4ce2-4d97-8502-...
q####.hzfa####.com:8903/img/plainNews/20190111/S_36a4e3f4-e396-4016-81af...
q####.hzfa####.com:8903/img/plainNews/20190111/S_78d5c910-33a3-4a7a-8fff...
q####.hzfa####.com:8903/img/plainNews/20190111/S_cb2c1f22-acc3-44f3-a122...
q####.hzfa####.com:8903/img/startImage/20190111/L_48fae1de-9062-428b-9ad...
q####.hzfa####.com:8903/img/startImage/20190111/L_f37876b0-bccb-4899-8a2...
s####.tc.qq.com/open/js/jweixin-1.2.0.js
t####.c####.q####.####.com/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_bca864
t####.c####.q####.####.com/tdata_fyR930

HTTP POST requests:

c-h####.g####.com/api.php?format=####&t=####
l####.tbs.qq.com/ajax?c=####&k=####
sdk.o####.p####.####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/Alvin2.xml
/data/data/####/ApplicationCache.db-journal
/data/data/####/BT_NIGHT.xml
/data/data/####/ContextData.xml
/data/data/####/UM_PROBE_DATA.xml
/data/data/####/UUID.xml
/data/data/####/a==7.5.4&&1.0.14_1547218457113_envelope.log
/data/data/####/authStatus_com.newgen.qinghai;remote.xml
/data/data/####/bj_sgrb.db
/data/data/####/bj_sgrb.db-journal
/data/data/####/bj_sgrb_support.db
/data/data/####/bj_sgrb_support.db-journal
/data/data/####/cacheData.xml
/data/data/####/core_info
/data/data/####/dW1weF9pbnRlcm5hbF8xNTQ3MjE4NDU2NTMx;
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/disk_entries_list_image_cache_-727304513.xml
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/f_000001
/data/data/####/f_000002
/data/data/####/f_000003
/data/data/####/f_000004
/data/data/####/f_000005
/data/data/####/firll.dat
/data/data/####/gal.db
/data/data/####/gal.db-journal
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/hst.db
/data/data/####/hst.db-journal
/data/data/####/i==1.2.0&&1.0.14_1547218456538_envelope.log
/data/data/####/index
/data/data/####/info.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/isFirstEnterApp.xml
/data/data/####/isFirstEnterIndex.xml
/data/data/####/isSetedCategory.xml
/data/data/####/libcuid.so
/data/data/####/libjiagu-1809704300.so
/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/####/tbs_download_config.xml
/data/data/####/tbs_download_stat.xml
/data/data/####/tbscoreinstall.txt
/data/data/####/tbslock.txt
/data/data/####/tdata_bca864
/data/data/####/tdata_bca864.jar
/data/data/####/tdata_fyR930
/data/data/####/tdata_fyR930.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/####/word_news_category.xml
/data/data/####/word_news_categoryyy.xml
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/.nomedia
/data/media/####/.umm.dat
/data/media/####/2bvu3o6phkz63l8hzyja26kh9.tmp
/data/media/####/6n0sg2rkl87rezf905u6j2cc3.tmp
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.newgen.qinghai.bin
/data/media/####/com.newgen.qinghai.db
/data/media/####/ls.db
/data/media/####/ls.db-journal
/data/media/####/tbslog.txt
/data/media/####/tdata_bca864
/data/media/####/tdata_fyR930
/data/media/####/test.log
/data/media/####/yoh.dat
/data/media/####/yol.dat
/data/media/####/yom.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
<Package Folder>/files/gdaemon_20161017 0 <Package>/com.newgen.service.PushService 24792 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
getprop ro.product.cpu.abi
ls /
ls /sys/class/thermal
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/com.newgen.service.PushService 24792 300 0

Loads the following dynamic libraries:

getuiext3
libjiagu-1809704300
locSDK7b

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
RSA-ECB-NoPadding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding

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.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

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