Adware.Gexin.800

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.1.origin

Network activity:

Connecting to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) a####.u####.com:80
TCP(HTTP/1.1) web.z####.com:80
TCP(HTTP/1.1) api.z####.com:80
TCP(HTTP/1.1) cb####.z####.com:9009
TCP(HTTP/1.1) i####.z####.com:80
TCP(TLS/1.0) api.map.b####.com:443
TCP(TLS/1.0) mobile-####.tin####.com:443
TCP(TLS/1.0) msg.umengc####.com:443
TCP(TLS/1.0) a####.a####.m.####.com:443
TCP(TLS/1.0) redi####.network####.com:443
TCP(TLS/1.0) dc1.network####.com:443
TCP umengj####.m.ta####.com:80
TCP ope####.m.ta####.com:443

DNS requests:

a####.m.ta####.com
a####.u####.com
ag####.m.ta####.com
api.map.b####.com
api.z####.com
cb####.z####.com
dc1.network####.com
i####.z####.com
mobile-####.tin####.com
msg.umengc####.com
n####.z####.com
redi####.network####.com
umen####.m.ta####.com
umengj####.m.ta####.com
web.z####.com

HTTP GET requests:

api.z####.com/statichtml/49876.html?token=####&rentId=####&regionId=####...
i####.z####.com/news_img/20180730/1532883404303069759.png
i####.z####.com/news_img/20180730/1532913686051041760.jpg
i####.z####.com/news_img/20180730/1532913696236097557.jpg
i####.z####.com/news_img/20180730/1532913703995040097.jpg
i####.z####.com/news_img/20180731/1533024708185011322.png
i####.z####.com/news_img/20180731/1533026000750079050.png
i####.z####.com/news_img/news_focus/20180424193959.jpg
i####.z####.com/news_img/news_focus/20180709101137.jpg
i####.z####.com/news_img/news_focus/20180723101519.jpg
web.z####.com/css/article_new.css
web.z####.com/img/bjtc.jpg
web.z####.com/img/icon200.png
web.z####.com/img/icon41.png

HTTP POST requests:

a####.u####.com/app_logs
api.z####.com/api/index/getNewIndexFunList
api.z####.com/api/lottery/getLatestOne
api.z####.com/api/lottery/getResults
api.z####.com/api/news/getNewsFocus
api.z####.com/api/news/getNewsList
api.z####.com/api/news/getProgramaList
api.z####.com/api/our/secret/lottery/resultsAction
api.z####.com/api/user/startover
cb####.z####.com:9009/api/system/selectAppUpdate
cb####.z####.com:9009/api/system/selectUserAppModule

Modified file system:

Creates the following files:

/data/data/####/.imprint
/data/data/####/087ea85ca4b3416f05d199139a18923b02769d74827fe08....0.tmp
/data/data/####/1097f39b7469be2002de3b3e03d38684761965142a53086....0.tmp
/data/data/####/2378415f37c89aab150e3d8b81d78ee18055bbc9295c044....0.tmp
/data/data/####/4287305c4f1c2052a8902e07ffe90ef2e08955c733a455a....0.tmp
/data/data/####/653c30bf01113b9f6fde707447de6cd08b95b4507de515f....0.tmp
/data/data/####/934ee0ec3141d2752d1069cffb5328d7046c590ad5d3ee9....0.tmp
/data/data/####/96010b9bcf552f53f79f2517d5b4b7d370088ac6727bc72....0.tmp
/data/data/####/97137592b00918529a5b898965ae422ba3820c74cec27af....0.tmp
/data/data/####/9824e6ebf7d845e3e1b1485af62a7f19e645c1b3850cdd3....0.tmp
/data/data/####/ACCS_BINDumeng;58c7a6ce310c93593f001768.xml
/data/data/####/ACCS_SDK.xml
/data/data/####/ACCS_SDK_CHANNEL.xml
/data/data/####/AGOO_BIND.xml
/data/data/####/Agoo_AppStore.xml
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/CookiePersistence.xml
/data/data/####/DaemonServer
/data/data/####/MessageStore.db-journal
/data/data/####/MsgLogStore.db-journal
/data/data/####/NBSAnrStore.xml
/data/data/####/NBSCrashStore.xml
/data/data/####/PREFS_KEY_UNIQUE_IDENTIFIER.xml
/data/data/####/accs.db-journal
/data/data/####/agoo.pid
/data/data/####/authStatus_com.zbbt.hljticai.xml
/data/data/####/authStatus_com.zbbt.hljticai;channel.xml
/data/data/####/cache-db-journal
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/com.networkbench.agent.impl.v2_com.zbbt.hljticai.xml
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/eudemon
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/f6d9e3c3d82883bdacc754634c2b49617a78175856e4526....0.tmp
/data/data/####/f_000001
/data/data/####/f_000002
/data/data/####/fragment_json.xml
/data/data/####/index
/data/data/####/journal.tmp
/data/data/####/libcuid.so
/data/data/####/libjiagu-1950963895.so
/data/data/####/message_accs_db
/data/data/####/message_accs_db-journal
/data/data/####/multidex.version.xml
/data/data/####/share_name_def.xml
/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/data/####/webviewCookiesChromiumPrivate.db-journal
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/.nomedia
/data/media/####/04fbc1766e804165a88dbb631800b76b
/data/media/####/6efea2ba670247afafc7583c88fdb9b7
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/deviceToken

Miscellaneous:

Executes next shell scripts:

<Package Folder>/files/DaemonServer -s <Package Folder>/lib/ -n runServer -p startservice -n <Package>/com.taobao.accs.ChannelService --user 0 -f <Package Folder> -t 600 -c agoo.pid -P <Package Folder> -K 1009527 -U tb_accs_eudemon_1.1.3 -L http://agoodm.m.taobao.com/agoo/report -D {"package":"<Package>","appKey":"umeng:58c7a6ce310c93593f001768","utdid":"W2BKX4c8vXgDAGdzx1Hut1Vn","sdkVersion":"220"} -I agoodm.m.taobao.com -O 80 -T -Z
chmod 500 <Package Folder>/files/DaemonServer
chmod 755 <Package Folder>/.jiagu/libjiagu-1950963895.so
sh

Loads the following dynamic libraries:

BaiduMapSDK_base_v4_2_1
libjiagu-1950963895
tnet-3.1

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding

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 running applications.

Adds tasks to the system scheduler.

Displays its own windows over windows of other applications.

Technologies

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Training and education

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