Adware.Gexin.13053

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Network activity:

Connects to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) z.c####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sdk-ope####.g####.com:80
TCP(HTTP/1.1) a####.u####.com:80
TCP(HTTP/1.1) hm.b####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) c.c####.com:80
TCP(HTTP/1.1) i####.b####.3g.cn:80
TCP(HTTP/1.1) u####.3g.cn:80
TCP(TLS/1.0) 1####.217.168.238:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5224

DNS requests:

7j####.c####.z0.####.com
a####.u####.com
and####.b####.qq.com
c####.g####.ig####.com
c####.g####.ig####.com
c-h####.g####.com
c.c####.com
cgi.con####.qq.com
fre####.b####.3g.cn
hm.b####.com
i####.b####.3g.cn
mt####.go####.com
res.b####.3g.cn
sdk-ope####.g####.com
sdk.c####.ig####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
u####.3g.cn
z13.c####.com

HTTP GET requests:

c.c####.com/wapstat.php?siteid=####&r=####&rnd=####
hm.b####.com/hm.gif?cc=####&ck=####&cl=####&ds=####&vl=####&et=####&ja=#...
hm.b####.com/hm.js?9a7b61f####
i####.b####.3g.cn/bookimage/bookpic/00/502400/502400_default.jpg
i####.b####.3g.cn/bookimage/bookpic/03/564603/564603_default.jpg
i####.b####.3g.cn/bookimage/bookpic/04/558304/558304_default.jpg
i####.b####.3g.cn/bookimage/bookpic/07/178607/178607_210_280.jpg
i####.b####.3g.cn/bookimage/bookpic/10/479310/479310_210_280.jpg
i####.b####.3g.cn/bookimage/bookpic/12/307612/307612_210_280.jpg
i####.b####.3g.cn/bookimage/bookpic/17/560317/560317_default.jpg
i####.b####.3g.cn/bookimage/bookpic/20/209420/209420_210_280.jpg
i####.b####.3g.cn/bookimage/bookpic/22/559322/559322_default.jpg
i####.b####.3g.cn/bookimage/bookpic/24/515124/515124_210_280.jpg
i####.b####.3g.cn/bookimage/bookpic/28/192128/192128_210_280.jpg
i####.b####.3g.cn/bookimage/bookpic/29/560229/560229_default.jpg
i####.b####.3g.cn/bookimage/bookpic/35/228235/228235_default.jpg
i####.b####.3g.cn/bookimage/bookpic/37/562837/562837_default.jpg
i####.b####.3g.cn/bookimage/bookpic/48/514448/514448_210_280.jpg
i####.b####.3g.cn/bookimage/bookpic/55/561755/561755_default.jpg
i####.b####.3g.cn/bookimage/bookpic/66/557766/557766_210_280.jpg
i####.b####.3g.cn/bookimage/bookpic/68/235868/235868_210_280.jpg
i####.b####.3g.cn/bookimage/bookpic/70/360970/360970_210_280.jpg
i####.b####.3g.cn/bookimage/bookpic/72/348972/348972_210_280.jpg
i####.b####.3g.cn/bookimage/bookpic/74/507874/507874_default.jpg
i####.b####.3g.cn/bookimage/bookpic/75/564875/564875_default.jpg
i####.b####.3g.cn/bookimage/bookpic/77/564777/564777_default.jpg
i####.b####.3g.cn/bookimage/bookpic/81/159981/159981_default.jpg
i####.b####.3g.cn/bookimage/bookpic/88/222888/222888_210_280.jpg
i####.b####.3g.cn/bookimage/bookpic/90/490790/490790_default.jpg
i####.b####.3g.cn/bookimage/bookpic/90/502890/502890_default.jpg
i####.b####.3g.cn/bookimage/bookpic/91/223591/223591_210_280.jpg
i####.b####.3g.cn/bookimage/bookpic/93/239193/239193_default.jpg
i####.b####.3g.cn/bookimage/bookpic/98/499098/499098_default.jpg
i####.b####.3g.cn/bookimage/bookpic/98/503498/503498_default.jpg
t####.c####.q####.####.com/config/hz-hzv6.conf
t####.c####.q####.####.com/tdata_Soq141
t####.c####.q####.####.com/tdata_fEV688
t####.c####.q####.####.com/tdata_ilz707
t####.c####.q####.####.com/tdata_siA393
u####.3g.cn/Home/Indexapp/bookshelfcon
u####.3g.cn/Home/Indexapp/screen?versionname=####&versioncode=####
u####.3g.cn/book_3g_cn/baidualading/v2/css/jane_index1_v2.css?v=####
u####.3g.cn/book_3g_cn/baidualading/v2/css/reset_new_v2.css?v=####
u####.3g.cn/book_3g_cn/baidualading/v2/css/swiper.min.css?v=####
u####.3g.cn/book_3g_cn/baidualading/v2/images/gotop_03.png
u####.3g.cn/book_3g_cn/baidualading/v2/images/icon-author.png
u####.3g.cn/book_3g_cn/baidualading/v2/images/nav_img1.png
u####.3g.cn/book_3g_cn/baidualading/v2/images/nav_img2.png
u####.3g.cn/book_3g_cn/baidualading/v2/images/nav_img3.png
u####.3g.cn/book_3g_cn/baidualading/v2/images/nav_img4.png
u####.3g.cn/book_3g_cn/baidualading/v2/js/jquery-1.7.2.min.js
u####.3g.cn/book_3g_cn/baidualading/v2/js/swiper.min.js
u####.3g.cn/xuan/index.php?c=####&m=####&a=####&versionName=####&version...
z.c####.com/stat.htm?id=1259970828&r=&iw=1&showp=0x0&lg=undefined&cnzz_e...

HTTP POST requests:

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

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/1002
/data/data/####/1004
/data/data/####/BUGLY_COMMON_VALUES.xml
/data/data/####/KA.xml
/data/data/####/LocalSetting.xml
/data/data/####/books.db-journal
/data/data/####/bugly_db_-journal
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/chapter.db-journal
/data/data/####/com.weteent.freebook.BETA_VALUES.xml
/data/data/####/core_info
/data/data/####/crashrecord.xml
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/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/####/f_000006
/data/data/####/f_000007
/data/data/####/f_000008
/data/data/####/f_000009
/data/data/####/f_00000a
/data/data/####/f_00000b
/data/data/####/f_00000c
/data/data/####/f_00000d
/data/data/####/f_00000e
/data/data/####/f_00000f
/data/data/####/f_000010
/data/data/####/f_000011
/data/data/####/f_000012
/data/data/####/f_000013
/data/data/####/f_000014
/data/data/####/f_000015
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/ggbook.db-journal
/data/data/####/index
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/jg_so_upgrade_setting.xml
/data/data/####/libjiagu.so
/data/data/####/local_crash_lock
/data/data/####/multidex.version.xml
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushk.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/run.pid
/data/data/####/security_info
/data/data/####/setting.xml
/data/data/####/tbs_download_config.xml
/data/data/####/tbscoreinstall.txt
/data/data/####/tbslock.txt
/data/data/####/tdata_Soq141
/data/data/####/tdata_Soq141.jar
/data/data/####/tdata_fEV688
/data/data/####/tdata_fEV688.jar
/data/data/####/tdata_ilz707
/data/data/####/tdata_ilz707.jar
/data/data/####/tdata_siA393
/data/data/####/tdata_siA393.jar
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.weteent.freebook.bin
/data/media/####/com.weteent.freebook.db
/data/media/####/tdata_Soq141
/data/media/####/tdata_fEV688
/data/media/####/tdata_ilz707
/data/media/####/tdata_siA393
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

/system/bin/sh -c getprop
/system/bin/sh -c type su
<Package Folder>/files/gdaemon_20161017 0 <Package>/jb.activity.mbook.business.push.GGPushService 25020 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu.so
getprop
getprop ro.product.cpu.abi
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/jb.activity.mbook.business.push.GGPushService 25020 300 0

Loads the following dynamic libraries:

Bugly
getuiext2
libjiagu

Uses the following algorithms to encrypt data:

AES-CBC-PKCS7Padding
AES-ECB-PKCS5Padding
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.

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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