Adware.Gexin.5338

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) pub-####.qin####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) m####.sc####.com:80
TCP(HTTP/1.1) m####.s####.com:80
TCP(TLS/1.0) hm.b####.com:443
TCP(TLS/1.0) h####.b####.com:443
TCP(TLS/1.0) m####.sc####.com:443
TCP c####.g####.ig####.com:5225
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
c####.g####.ig####.com
c-h####.g####.com
h####.b####.com
hm.b####.com
m####.s####.com
m####.sc####.com
pub-####.qin####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net

HTTP GET requests:

m####.s####.com/MTD_Common_Static/chem_service/ranking.html
m####.s####.com/chem/4.3/activeremind?product_type=####&device_type=####
m####.s####.com/chem/4.3/firstlaunch?product_type=####&user_id=####&devi...
m####.s####.com/chem/4.3/getExponent?product_type=####&version=####
m####.s####.com/chem/4.3/getversion?product_type=####&user_id=####&vende...
m####.s####.com/chem/4.3/headadv?device_type=####&product_type=####&sign...
m####.s####.com/chem/4.3/msgbox_no_login?sign=yb####
m####.s####.com/chem/4.3/tailadv?product_type=####&sign=2P####
m####.sc####.com/MTD_Common_Static/chem_service/chem_tool.html
m####.sc####.com/MTD_Common_Static/chem_service/css/chem_toll/chem_tool....
m####.sc####.com/MTD_Common_Static/chem_service/css/public.css
m####.sc####.com/MTD_Common_Static/chem_service/css/ranking.css
m####.sc####.com/MTD_Common_Static/chem_service/css/reset.css
m####.sc####.com/MTD_Common_Static/chem_service/img/chem_tool/area.png
m####.sc####.com/MTD_Common_Static/chem_service/img/chem_tool/length.png
m####.sc####.com/MTD_Common_Static/chem_service/img/chem_tool/temperatur...
m####.sc####.com/MTD_Common_Static/chem_service/img/chem_tool/up.png
m####.sc####.com/MTD_Common_Static/chem_service/img/chem_tool/volume.png
m####.sc####.com/MTD_Common_Static/chem_service/img/chem_tool/weight.png
m####.sc####.com/MTD_Common_Static/chem_service/img/ranking/down.png
m####.sc####.com/MTD_Common_Static/chem_service/img/ranking/up.png
m####.sc####.com/MTD_Common_Static/chem_service/js/chem_tool/chem_tool.js
m####.sc####.com/MTD_Common_Static/chem_service/js/chem_tool/math.js
m####.sc####.com/MTD_Common_Static/chem_service/js/config.js
m####.sc####.com/MTD_Common_Static/chem_service/js/jquery-1.10.1.min.js
m####.sc####.com/MTD_Common_Static/chem_service/js/ranking/get_url_param...
m####.sc####.com/MTD_Common_Static/chem_service/js/ranking/ranking.js
m####.sc####.com/MTD_Common_Static/chem_service/ranking.html
m####.sc####.com/chem/4.3/finance/ranklist?user_id=####&industry=####&pr...
m####.sc####.com/client2.0/201711/1512002956.jpg
m####.sc####.com/client2.0/201805/1526028331.jpg
m####.sc####.com/client2.0/201808/1533190163.jpg
m####.sc####.com/client2.0/201808/1533777582.png
m####.sc####.com/client2.0/201811/1542242014.jpg
m####.sc####.com/meeting/201710/1508748135.jpg
m####.sc####.com/zhuanti/201810/1539937916.jpg
pub-####.qin####.com/tdata_EDT356
t####.c####.q####.####.com/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_YYn966
t####.c####.q####.####.com/tdata_eOt091

HTTP POST requests:

c-h####.g####.com/api.php?format=####&t=####
m####.s####.com/chem/4.3/getcolumnlist
m####.s####.com/chem/4.3/userpower
sdk.o####.p####.####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/data/####/-16434468971477790234
/data/data/####/-547228428289647457
/data/data/####/-608389994611986188
/data/data/####/-7737492631284042508
/data/data/####/.jg.ic
/data/data/####/1001565886-2044482429
/data/data/####/1155805205458300659
/data/data/####/1229950145-479379344
/data/data/####/1474692115-588614049
/data/data/####/311771022-328191287
/data/data/####/47576538-191356666
/data/data/####/8fd32492e210
/data/data/####/APP_STATIC_PREF.xml
/data/data/####/USER_PRIVATE_DATA.xml
/data/data/####/__Baidu_Stat_SDK_SendRem.xml
/data/data/####/__local_ap_info_cache.json
/data/data/####/__local_last_session.json
/data/data/####/__local_stat_cache.json
/data/data/####/__send_data_1543228380702
/data/data/####/baidu_mtj_sdk_record.xml
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/device_id.xml.xml
/data/data/####/f_000001
/data/data/####/f_000002
/data/data/####/f_000003
/data/data/####/f_000004
/data/data/####/f_000005
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/index
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/libcuid.so
/data/data/####/libjiagu1143732070.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/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/media/####/.confd
/data/media/####/.confd-journal
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/.nomedia
/data/media/####/.timestamp
/data/media/####/1rsyystfhw217wx8ea4t7rzx4.tmp
/data/media/####/314ysidthaovak8o9gxi55dmf.tmp
/data/media/####/3w740jd257rqt2r6omlheiyvq.tmp
/data/media/####/3wrbijf44rn0ondq63428jdg6.tmp
/data/media/####/50op64arjle03u0mh3zvu2mbs.tmp
/data/media/####/606dkuhuejplqyl0wqu8613zy.tmp
/data/media/####/6enpns39yfefk6ifoswihi81f.tmp
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.sci99.news.huagong.bin
/data/media/####/com.sci99.news.huagong.db
/data/media/####/tdata_YYn966
/data/media/####/tdata_eOt091
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.getui.PushService 25080 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
getprop ro.build.display.id
getprop ro.build.version.emui
getprop ro.build.version.opporom
getprop ro.miui.ui.version.name
getprop ro.smartisan.version
getprop ro.vivo.os.version
mount

Loads the following dynamic libraries:

crash_analysis
getuiext2
libjiagu1143732070

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-ECB-PKCS5Padding
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses special library to hide executable bytecode.

Gets information about location.

Gets information about network.

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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