Adware.Gexin.3778

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) a####.u####.com:80
TCP(HTTP/1.1) sh.wagbr####.aliyun####.com:80
TCP(HTTP/1.1) www.hongyu####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) h####.opensp####.cn:80
TCP(HTTP/1.1) loc.map.b####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) d####.opensp####.cn:80
TCP(TLS/1.0) api.map.b####.com:443
TCP(TLS/1.0) feedbac####.aliy####.com:443
TCP(TLS/1.0) ada####.m.ta####.com:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) en####.lveha####.com.####.com:443
TCP(TLS/1.0) and####.cli####.go####.com:443
TCP(TLS/1.0) sh.wagbr####.ta####.com:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5227

DNS requests:

7j####.c####.z0.####.com
a####.man.aliy####.com
a####.u####.com
acti####.tuia####.com
ada####.ut.ta####.com
adas####.ut.ta####.com
and####.cli####.go####.com
api.map.b####.com
c####.g####.ig####.com
c-h####.g####.com
d####.opensp####.cn
en####.lveha####.com
feedbac####.aliy####.com
h####.opensp####.cn
loc.map.b####.com
log.u####.com
s####.u####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
www.hongyu####.com

HTTP GET requests:

h####.opensp####.cn/launchconfig?t=####&p=LmFwc####
t####.c####.q####.####.com/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_YYn966
t####.c####.q####.####.com/tdata_eOt091
www.hongyu####.com/hongbao/app/image/adv_jzdb.png
www.hongyu####.com/hongbao/app/image/adv_kp180319.png
www.hongyu####.com/hongbao/app/image/adv_lock.png

HTTP POST requests:

a####.u####.com/app_logs
c-h####.g####.com/api.php?format=####&t=####
d####.opensp####.cn/index.php/clientrequest/clientcollect/isCollect
loc.map.b####.com/sdk.php
sdk.o####.p####.####.com/api.php?format=####&t=####
sh.wagbr####.aliyun####.com/man/api?ak=####&s=####
www.hongyu####.com/hongbao/rest/appInterface/advert/infoBuf
www.hongyu####.com/hongbao/rest/appInterface/hongbaoRecord/getStatistic
www.hongyu####.com/hongbao/rest/appInterface/info/getVipFunInfo
www.hongyu####.com/hongbao/rest/appInterface/user/createByDeviceId
www.hongyu####.com/hongbao/rest/appInterface/user/getVipItemNew
www.hongyu####.com/hongbao/rest/appInterface/version/getLatestVersion

Modified file system:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/1540057477213.log
/data/data/####/38610eb10d601df4891372ebcd40e71229027f33257f4fe....0.tmp
/data/data/####/3bb531aaa8ce34dc19938a7cbca549dc8f681cd876bb706....0.tmp
/data/data/####/637efa0f7bcd9a01ed8ad296fe0fdec1fbff6137232fb4c....0.tmp
/data/data/####/82a713dcd0f83895e9d33034e9cf3b10b0653f575da7b82....0.tmp
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/HongBaowz.xml
/data/data/####/HongBaowz.xml.bak
/data/data/####/UTCommon.xml
/data/data/####/a7a65fb4bcff6a097bb44f676b26643a5b3a0be76e6d754....0.tmp
/data/data/####/ap.Lock
/data/data/####/authStatus_com.hongyun.app;remote.xml
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/com.hongyun.app_preferences.xml
/data/data/####/com.iflytek.id.xml
/data/data/####/com.iflytek.msc.xml
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/de803a204085d52b5f264cfd8d58560d63b4aef92a1ce03....0.tmp
/data/data/####/dl.db
/data/data/####/dl.db-journal
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/f2c20a1709aa341e5baff9514c59da8e4ee7858fbee6942....0.tmp
/data/data/####/fa7e3ade0207ba0f30625e38c2642c1592d471e4272486c....0.tmp
/data/data/####/firll.dat
/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/####/ifly_launch_lib.xml
/data/data/####/iflytek_state_com.hongyun.app.xml
/data/data/####/index
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal.tmp
/data/data/####/libcuid.so
/data/data/####/libjiagu902441000.so
/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/####/tdata_YYn966
/data/data/####/tdata_YYn966.jar
/data/data/####/tdata_eOt091
/data/data/####/tdata_eOt091.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/data/####/umeng_socialize.xml (deleted)
/data/data/####/umeng_socialize.xml.bak
/data/data/####/ut.db
/data/data/####/ut.db-journal
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/adv_kp180319.png
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.hongyun.app.bin
/data/media/####/com.hongyun.app.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/iflyworkdir_test
/data/media/####/tdata_YYn966
/data/media/####/tdata_eOt091
/data/media/####/test.log

Miscellaneous:

Executes next shell scripts:

<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.service.push.MyPushService 24508 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu902441000.so

Loads the following dynamic libraries:

getuiext2
libjiagu902441000
locSDK7a
msc
ut_c_api

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-NoPadding
AES-CBC-PKCS5Padding

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.

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