Adware.Gexin.3711

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####.exc.mob.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) api.ichu####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(SSL/3.0) sta####.ichu####.com:443
TCP(TLS/1.0) av1.x####.com:443
TCP(TLS/1.0) sta####.ichu####.com:443
TCP(TLS/1.0) c####.x####.com:443
TCP(TLS/1.0) s####.ml####.cc:443
TCP c####.g####.ig####.com:5225
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
a####.exc.mob.com
and####.b####.qq.com
api.ichu####.com
av1.x####.com
c####.g####.ig####.com
c####.x####.com
c####.x####.com
c-h####.g####.com
s####.ml####.cc
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
sta####.ichu####.com

HTTP GET requests:

api.ichu####.com/rest?timestamp=####&app_ver=####&data_type=####&method=...
api.ichu####.com/rest?timestamp=####&app_ver=####&last_config_sign=####&...
api.ichu####.com/rest?timestamp=####&app_ver=####&method=####&os=####&ap...
api.ichu####.com/rest?timestamp=####&app_ver=####&timestamp_random=####&...
t####.c####.q####.####.com/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_YEE769
t####.c####.q####.####.com/tdata_qHR433

HTTP POST requests:

a####.exc.mob.com/errconf
and####.b####.qq.com/rqd/async?aid=####
c-h####.g####.com/api.php?format=####&t=####
sdk.o####.p####.####.com/api.php?format=####&t=####

Modified file system:

Creates the following files:

/data/data/####/.duid
/data/data/####/.jg.ic
/data/data/####/.lock
/data/data/####/.vpl_lock
/data/data/####/0c94fef75cee6e3e9abcfbfa1db8e0398e19e829b22950c....0.tmp
/data/data/####/1004
/data/data/####/1539248459920.jpg.tmp
/data/data/####/1539572964206.jpg.tmp
/data/data/####/1539875922260_2285
/data/data/####/1539875922924_2285
/data/data/####/1539875925110_2285
/data/data/####/1539875927109_2285
/data/data/####/1539875927474_2285
/data/data/####/1539875927876_2285
/data/data/####/1539875928371_2285
/data/data/####/1539875934336_2285
/data/data/####/1539875935727_2405
/data/data/####/1539875936970_2285
/data/data/####/1539875938716_2405
/data/data/####/1539875940655_2285
/data/data/####/1539875986817_2285
/data/data/####/1a2dc164862dc9550abd43c6dfc062122341a34f13337bb....0.tmp
/data/data/####/22423b90215beb31cf03535b8a0f66f568a0e70c065ca63....0.tmp
/data/data/####/22715a836e39fa6d295bbd6db04df881002699fcc8da357....0.tmp
/data/data/####/29d891a11ae22717cb0f8f04ea22e4d241f988c40901123....0.tmp
/data/data/####/3b7d93718da78f756c8ba335b139e4b28fba06c156c53f8....0.tmp
/data/data/####/6877466.06421909
/data/data/####/6877466.06421909 (deleted)
/data/data/####/6877466.634263
/data/data/####/6877466.634263 (deleted)
/data/data/####/7c4a201be1d41910daa3733b19c6c38bb40592020387cde....0.tmp
/data/data/####/Archimedes_p1
/data/data/####/Archimedes_p2
/data/data/####/Archimedes_p3
/data/data/####/Archimedes_p4
/data/data/####/Archimedes_p5
/data/data/####/TDCloudSettingsConfigB30B918E668B1CC89A8FE129F34AB53D.xml
/data/data/####/TD_app_pefercen_profile.xml
/data/data/####/TDpref_cloudcontrol1.xml
/data/data/####/TDpref_longtime.xml
/data/data/####/TDpref_longtime0.xml
/data/data/####/TDpref_shorttime.xml
/data/data/####/TDpref_shorttime0.xml
/data/data/####/ThrowalbeLog.db-journal
/data/data/####/alldata.db
/data/data/####/alldata.db-journal
/data/data/####/bugly_db_-journal
/data/data/####/com.ni.ichunqiu_preferences.xml
/data/data/####/crashrecord.xml
/data/data/####/domain_1
/data/data/####/download-journal
/data/data/####/e22e8bc99948cf275607a95c0a1b49748659c379f07abff....0.tmp
/data/data/####/fb542323295f173cf6c250a746eaa07319d6abf8dd4d2fe....0.tmp
/data/data/####/gdaemon_20161017
/data/data/####/gx_sp.xml
/data/data/####/help_is_appload_dip.xml
/data/data/####/init.pid
/data/data/####/init_c.pid
/data/data/####/io.github.laucherish.purezhihud_preferences.xml
/data/data/####/iv
/data/data/####/journal.tmp
/data/data/####/last_sign.xml
/data/data/####/libjiagu1676219524.so
/data/data/####/local_crash_lock
/data/data/####/main_page_date.xml
/data/data/####/mob_commons_1
/data/data/####/multidex.version.xml
/data/data/####/mwsdk_analytics.db-journal
/data/data/####/native_record_lock
/data/data/####/okhttputils_cache.db
/data/data/####/okhttputils_cache.db-journal
/data/data/####/persistent_data.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/####/salt
/data/data/####/security_info
/data/data/####/tdata_YEE769
/data/data/####/tdata_YEE769.jar
/data/data/####/tdata_qHR433
/data/data/####/tdata_qHR433.jar
/data/data/####/tdid.xml
/data/data/####/user_update_config_config.xml
/data/data/####/version_per.xml
/data/data/####/xUtils_http_cookie.db
/data/data/####/xUtils_http_cookie.db-journal
/data/media/####/-1399098809.tmp
/data/media/####/-1904051315.tmp
/data/media/####/.artc_lock
/data/media/####/.di
/data/media/####/.dic_lock
/data/media/####/.duid
/data/media/####/.globalLock
/data/media/####/.im_lock
/data/media/####/.lesd_lock
/data/media/####/.mn_-1464060969
/data/media/####/.nomedia
/data/media/####/.pkg_lock
/data/media/####/.pkgs_lock
/data/media/####/.rc_lock
/data/media/####/.slw
/data/media/####/.ss_lock
/data/media/####/.tcookieid
/data/media/####/1513483067.tmp
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.ni.ichunqiu.db
/data/media/####/tdata_YEE769
/data/media/####/tdata_qHR433
/data/media/####/test.log

Miscellaneous:

Executes next shell scripts:

/system/bin/sh -c getprop
/system/bin/sh -c type su
<Package Folder>/files/gdaemon_20161017 0 <Package>/com.igexin.sdk.PushService 24496 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu1676219524.so
getprop
which su

Loads the following dynamic libraries:

Bugly
getuiext2
ichunqiu-jni
libjiagu1676219524

Uses the following algorithms to encrypt data:

AES
AES-ECB-PKCS7Padding
AES-GCM-NoPadding
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES
AES-ECB-NoPadding
AES-GCM-NoPadding

Uses elevated priveleges.

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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Technical information

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