Adware.Gexin.8850

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) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) l####.tbs.qq.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) tx.c####.com:80
TCP(HTTP/1.1) s####.tc.qq.com:80
TCP(TLS/1.0) l####.b####.com:443
TCP(TLS/1.0) tx.c####.com:443
TCP(TLS/1.0) c####.cloudf####.com:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5224

DNS requests:

7j####.c####.z0.####.com
c####.cloudf####.com
c####.g####.ig####.com
c-h####.g####.com
l####.b####.com
l####.tbs.qq.com
mt####.go####.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
tx.c####.com
www.c####.com

HTTP GET requests:

s####.tc.qq.com/open/js/jweixin-1.3.2.js
t####.c####.q####.####.com/tdata_JNg986
t####.c####.q####.####.com/tdata_MkX219
t####.c####.q####.####.com/tdata_nxn539
t####.c####.q####.####.com/tdata_zzW503
ti####.c####.l####.####.com/config/hz-hzv3.conf
tx.c####.com/aupdate.html
tx.c####.com/cst.apk
tx.c####.com/static/js/jquery.lazyload.min1.9.3.js
tx.c####.com/tpl/Wap/pure/static/js/common.js?7####
tx.c####.com/tpl/Wap/pure/static/js/fastclick.js
tx.c####.com/tpl/Wap/pure/static/js/iscroll.js?2####
tx.c####.com/tpl/Wap/pure/static/js/jquery.downcount.js?5####
tx.c####.com/tpl/Wap/pure/static/js/swiper.min.js
tx.c####.com/tpl/Wap/pure/static/layer/layer.m.js
tx.c####.com/tpl/Wap/pure/static/layer/need/layer.css
tx.c####.com/tpl/Wap/pure/static/shop/css/shopBase.css?t=####
tx.c####.com/tpl/Wap/pure/static/shop/images/cart.png
tx.c####.com/tpl/Wap/pure/static/shop/images/merchant_notice.png
tx.c####.com/tpl/Wap/pure/static/shop/images/merchant_phone.png
tx.c####.com/tpl/Wap/pure/static/shop/images/merchant_ride.png
tx.c####.com/tpl/Wap/pure/static/shop/images/merchant_time.png
tx.c####.com/tpl/Wap/pure/static/shop/images/search-w.png
tx.c####.com/tpl/Wap/pure/static/shop/js/shopBasePro.js?2####
tx.c####.com/upload/adver/000/000/001/5c4027ff4ea90972.jpg
tx.c####.com/upload/adver/000/000/001/5c51166eaf334518.jpg
tx.c####.com/upload/adver/000/000/001/5c5f6c9bbfa41538.jpg
tx.c####.com/upload/adver/000/000/001/5c5f6ca7114ed243.jpg
tx.c####.com/upload/adver/000/000/001/5c6a0f7a2ec51563.jpg
tx.c####.com/upload/authentication/rz_pic/_5.jpg
tx.c####.com/upload/first_sort/cytg.png
tx.c####.com/upload/first_sort/fcrc.png
tx.c####.com/upload/first_sort/jdzs.png
tx.c####.com/upload/first_sort/mswm.png
tx.c####.com/upload/first_sort/qcfw.png
tx.c####.com/upload/first_sort/scsg.png
tx.c####.com/upload/first_sort/xxyl.png
tx.c####.com/upload/first_sort/zhcc.png
tx.c####.com/upload/goods/000/000/355/5bea7d40b0926435.png
tx.c####.com/upload/goods/000/000/443/5c36b8a9def2a784.jpg
tx.c####.com/upload/goods/000/000/443/m_5c36b8a9def2a784.jpg
tx.c####.com/upload/goods/000/000/443/s_5bea924e8bcf3499.jpg
tx.c####.com/upload/goods/000/000/443/s_5bea92b46d010895.jpg
tx.c####.com/upload/goods/000/000/443/s_5bea932ef0202869.jpg
tx.c####.com/upload/goods/000/000/443/s_5bea941ba1bc8160.jpg
tx.c####.com/upload/goods/000/000/443/s_5bea9455b6533635.jpg
tx.c####.com/upload/goods/000/000/443/s_5bea94869147f122.jpg
tx.c####.com/upload/goods/000/000/443/s_5c36a75196488461.jpg
tx.c####.com/upload/goods/000/000/443/s_5c36b5ab578b7206.jpg
tx.c####.com/upload/goods/000/000/443/s_5c36b8a9def2a784.jpg
tx.c####.com/upload/goods/000/000/523/5c6b70057de1c691.jpg
tx.c####.com/upload/goods/000/000/607/5c25d24dc4f00985.jpg
tx.c####.com/upload/goods/000/000/691/5c346e7ab31df395.png
tx.c####.com/upload/goods/000/000/733/5c4ab4de4ebfc244.jpg
tx.c####.com/upload/shop_bg/9.jpg
tx.c####.com/upload/store/000/000/443/s_5be5341a55afd688.jpg
tx.c####.com/wap.php?c=####&a=####&goods_id=####
tx.c####.com/wap.php?c=####&a=####&store_id=####
tx.c####.com/wap.php?c=####&a=####&store_id=####&sort_id=####
tx.c####.com/wap.php?g=####&c=####&a=####&district_id=####
tx.c####.com/wap.php?g=####&c=####&a=####&g_start=####&s_start=####&lat=...
tx.c####.com/wap.php?g=####&cst_lat=####&cst_long=####&c=####&a=####&pro...

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=####
tx.c####.com/index.php?g=####&c=####&a=####&cat_id=####&district_id=####
tx.c####.com/index.php?g=####&c=####&a=####&order_type=####&parent_id=####
tx.c####.com/wap.php?c=####&a=####
tx.c####.com/wap.php?g=####&c=####&a=####&way=####

File system changes:

Creates the following files:

/data/data/####/.jg.ic
/data/data/####/cc_c_t_m_l_txsdk.xml
/data/data/####/com.nyy.cst.xml
/data/data/####/com.nyy.cst_preferences.xml
/data/data/####/core_info
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/debug.conf
/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/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gkt-journal
/data/data/####/index
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/libjiagu1273638697.so
/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/####/tbs_download_config.xml
/data/data/####/tbs_download_stat.xml
/data/data/####/tbscoreinstall.txt
/data/data/####/tbslock.txt
/data/data/####/tdata_JNg986
/data/data/####/tdata_JNg986.jar
/data/data/####/tdata_MkX219
/data/data/####/tdata_MkX219.jar
/data/data/####/tdata_nxn539
/data/data/####/tdata_nxn539.jar
/data/data/####/tdata_zzW503
/data/data/####/tdata_zzW503.jar
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/webviewCookiesChromiumPrivate.db-journal
/data/media/####/-1119113477.tmp
/data/media/####/-1647903165.tmp
/data/media/####/-1841167799.tmp
/data/media/####/-2099847164.tmp
/data/media/####/-341629453.tmp
/data/media/####/-985810843.tmp
/data/media/####/.nomedia
/data/media/####/1017322374.tmp
/data/media/####/1190681198.tmp
/data/media/####/1245180016.tmp
/data/media/####/138301289.tmp
/data/media/####/1482771041.tmp
/data/media/####/1486381367.tmp
/data/media/####/148676442.tmp
/data/media/####/1626519556.tmp
/data/media/####/1741044060.tmp
/data/media/####/1763407452.tmp
/data/media/####/493718995.tmp
/data/media/####/736162033.tmp
/data/media/####/981099022.tmp
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.nyy.cst.bin
/data/media/####/com.nyy.cst.db
/data/media/####/fc4.fdba0a95
/data/media/####/gkt-journal
/data/media/####/gktper
/data/media/####/tdata_JNg986
/data/media/####/tdata_MkX219
/data/media/####/tdata_nxn539
/data/media/####/tdata_zzW503
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.getui.GetuiPushService 24093 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
getprop ro.product.cpu.abi
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.getui.GetuiPushService 24093 300 0

Loads the following dynamic libraries:

getuiext2
libjiagu1273638697
qalcodecwrapper
qalmsfboot
tencentloc

Uses the following algorithms to encrypt data:

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

Uses special library to hide executable bytecode.

Gets information about location.

Gets information about phone status (number, IMEI, etc.).

Gets information about installed apps.

Gets information about running apps.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

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