Adware.Gexin.4350

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Gains access to the ITelephony private interface.

Network activity:

Connecting to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) pub-####.qin####.com:80
TCP(HTTP/1.1) a####.u####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) l####.tbs.qq.com:80
TCP(HTTP/1.1) prs####.oss-cn-####.aliy####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) prs####.i####.com:80
TCP(HTTP/1.1) sto####.i####.com:80
TCP(HTTP/1.1) et2-na6####.wagbr####.ali####.####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP c####.g####.ig####.com:5226
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
a####.u####.com
c####.g####.ig####.com
c####.g####.ig####.com
c-h####.g####.com
l####.tbs.qq.com
log.u####.com
prs####.i####.com
prs####.oss-cn-####.aliy####.com
pub-####.qin####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
sto####.i####.com

HTTP GET requests:

et2-na6####.wagbr####.ali####.####.com/bar/get/58d9c3dd04e2056ef4001e76/...
prs####.i####.com/banner/dav-banner1810111109157862.jpg@!banner
prs####.i####.com/banner/dav-banner18103117254788171.jpg@!banner
prs####.i####.com/banner/dav-banner18110508493959851.jpg@!banner
prs####.i####.com/banner/dav-banner18110513030887403.jpg@!banner
prs####.i####.com/banner/dav-banner1811061150302004.jpg@!banner
prs####.i####.com/face/dav-face17080809543679931.jpg@!face
prs####.i####.com/face/dav-face18050209184307825.jpg@!face
prs####.i####.com/face/dav-face1805291811421918.jpg@!face
prs####.i####.com/face/dav-face18061412472716938.jpg@!face
prs####.i####.com/face/dav-face18080611113466699.jpg@!face
prs####.i####.com/face/dav-face18083115333209729.jpg@!face
prs####.i####.com/face/dav-face18091808485214936.jpg@!face
prs####.i####.com/resource/7zSFjXf4JZ.jpg@!resource_face
prs####.i####.com/resource/CRJ7k3z22r.jpg
prs####.i####.com/resource/PaZTsB8kC4.jpg@!resource_face
prs####.i####.com/resource/cY3drkwWBW.jpg@!resource_face
prs####.i####.com/resource/dav-resource18070912111116967.jpg@!resource
prs####.i####.com/resource/dav-resource18102413373722843.jpg@!resource
prs####.i####.com/resource/dav-resource18102511022744339.jpg@!resource
prs####.i####.com/resource/dav-resource18103113342606521.jpg@!resource
prs####.i####.com/resource/dav-resource18110414354545251.jpg@!resource
prs####.i####.com/resource/sTdm5CYKGP.jpg@!resource_face
prs####.oss-cn-####.aliy####.com/resource/1541493928148531.png
prs####.oss-cn-####.aliy####.com/resource/20181105134917678.png
pub-####.qin####.com/tdata_EDT356
sto####.i####.com/index.php?s=####
t####.c####.q####.####.com/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_vHH584
t####.c####.q####.####.com/tdata_wmL809

HTTP POST requests:

a####.u####.com/app_logs
c-h####.g####.com/api.php?format=####&t=####
l####.tbs.qq.com/ajax?c=####&k=####
sdk.o####.p####.####.com/api.php?format=####&t=####
sto####.i####.com/index.php?s=####

Modified file system:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/001481d6a0a9c2730fa0c75a7dd84566.0.tmp
/data/data/####/001481d6a0a9c2730fa0c75a7dd84566.1.tmp
/data/data/####/0d0bbebded75064a4283f3fe54357522.0.tmp
/data/data/####/0d0bbebded75064a4283f3fe54357522.1.tmp
/data/data/####/1484cf49ed6fb5b1ae30f3eee99d7fcf.0.tmp
/data/data/####/1484cf49ed6fb5b1ae30f3eee99d7fcf.1.tmp
/data/data/####/25ccc62880e6d50c5354b5f6b4b72700.0.tmp
/data/data/####/25ccc62880e6d50c5354b5f6b4b72700.1.tmp
/data/data/####/304c010df710614dc68896ce0d29c6d3.0.tmp
/data/data/####/304c010df710614dc68896ce0d29c6d3.1.tmp
/data/data/####/391771097bfdfd6f213ab7cecf154d04.0.tmp
/data/data/####/391771097bfdfd6f213ab7cecf154d04.1.tmp
/data/data/####/3ec758d0cfced945213c8680674ea199.0.tmp
/data/data/####/3ec758d0cfced945213c8680674ea199.1.tmp
/data/data/####/42cd2584678aea7487c151c5033fea1d.0.tmp
/data/data/####/42cd2584678aea7487c151c5033fea1d.1.tmp
/data/data/####/43a1120c7cf31c9d96988f71d156dfd4.0.tmp
/data/data/####/43a1120c7cf31c9d96988f71d156dfd4.1.tmp
/data/data/####/4f76d8a31c384e84c51645bc76aa0d77.0.tmp
/data/data/####/4f76d8a31c384e84c51645bc76aa0d77.1.tmp
/data/data/####/52b9fd908b23688b44df1212f73f9d5b.0.tmp
/data/data/####/52b9fd908b23688b44df1212f73f9d5b.1.tmp
/data/data/####/57c4be6ab35b785f48011c1b3afa0c61.0.tmp
/data/data/####/57c4be6ab35b785f48011c1b3afa0c61.1.tmp
/data/data/####/615d3ec4770f228cba21559776cfd6d3.0.tmp
/data/data/####/615d3ec4770f228cba21559776cfd6d3.1.tmp
/data/data/####/63b568b135227cc4af841239dbee7adc.0.tmp
/data/data/####/63b568b135227cc4af841239dbee7adc.1.tmp
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/MultiDex.lock
/data/data/####/a09c104a2bab8e81cc6e0b8b8efa2481.0.tmp
/data/data/####/a09c104a2bab8e81cc6e0b8b8efa2481.1.tmp
/data/data/####/a5b06340e8e99ed4d4541fbc2b660466.0.tmp
/data/data/####/a5b06340e8e99ed4d4541fbc2b660466.1.tmp
/data/data/####/aee8777d8691401dd88abec63c7fd3c3.0.tmp
/data/data/####/aee8777d8691401dd88abec63c7fd3c3.1.tmp
/data/data/####/b567b5b998b60e3b0f1fdc62c1521d90.0.tmp
/data/data/####/b567b5b998b60e3b0f1fdc62c1521d90.1.tmp
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/core_info
/data/data/####/d87b0e58956a9cca1cb6164603ce82fe.0.tmp
/data/data/####/d87b0e58956a9cca1cb6164603ce82fe.1.tmp
/data/data/####/dab8ae30392fa65908905a9139edea10.0.tmp
/data/data/####/dab8ae30392fa65908905a9139edea10.1.tmp
/data/data/####/e1c0ec3c65350f99e3d3ca2b6fa81f23.0.tmp
/data/data/####/e1c0ec3c65350f99e3d3ca2b6fa81f23.1.tmp
/data/data/####/e9701476a3304134c0746ae52bc01d77.0.tmp
/data/data/####/e9701476a3304134c0746ae52bc01d77.1.tmp
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/f422a89ca1b3b8257c7d6df0292cf826.0.tmp
/data/data/####/f422a89ca1b3b8257c7d6df0292cf826.1.tmp
/data/data/####/f79bf4a9efa01304fe3cc7ada5aa0871.0.tmp
/data/data/####/f79bf4a9efa01304fe3cc7ada5aa0871.1.tmp
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/hmall.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal.tmp
/data/data/####/libjiagu-1825764045.so
/data/data/####/multidex.version.xml
/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_vHH584
/data/data/####/tdata_vHH584.jar
/data/data/####/tdata_wmL809
/data/data/####/tdata_wmL809.jar
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/umeng_socialize.xml
/data/media/####/.nomedia
/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/####/org.gbmedia.hmall.bin
/data/media/####/org.gbmedia.hmall.db
/data/media/####/tdata_vHH584
/data/media/####/tdata_wmL809
/data/media/####/test.log

Miscellaneous:

Executes next shell scripts:

<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.ui.main.MyPushService 24659 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
getprop ro.product.cpu.abi
mount

Loads the following dynamic libraries:

getuiext2
libjiagu-1825764045

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-NoPadding
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 installed applications.

Adds tasks to the system scheduler.

Displays its own windows over windows of other applications.

Technologies

Terminology

Training and education

Myths

Technical information

Curing recommendations

Free trial