Adware.Gexin.23290

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Network activity:

Connects to:

UDP(DNS) 8####.8.4.4:53
TCP(HTTP/1.1) oc.u####.com:80
TCP(HTTP/1.1) zb-cent####.m.ta####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sdk-ope####.g####.com:80
TCP(HTTP/1.1) sdk.c####.g####.####.cn:80
TCP(HTTP/1.1) a####.u####.com:80
TCP(HTTP/1.1) ada####.m.ta####.com:80
TCP(HTTP/1.1) s####.e.qq.com:80
TCP(HTTP/1.1) def####.ovs.us.####.com:80
TCP(HTTP/1.1) cdn-sdk####.g####.com.####.cn:80
TCP(HTTP/1.1) na61-####.wagbr####.ali####.####.com:80
TCP(TLS/1.0) and####.a####.go####.com:443
TCP(TLS/1.0) nbsdk-b####.al####.com:443
TCP(TLS/1.0) pla####.google####.com:443
TCP(TLS/1.0) gmscomp####.google####.com:443
TCP(TLS/1.0) 1####.250.150.94:443
TCP(TLS/1.0) rr13---####.g####.com:443
TCP(TLS/1.2) 1####.250.150.94:443
TCP(TLS/1.2) gmscomp####.google####.com:443
TCP cm-1####.g####.com:5227
TCP sdk.o####.t####.####.com:5224

DNS requests:

a####.u####.com
acs4bai####.m.ta####.com
ad####.m.ta####.com
ada####.m.ta####.com
and####.a####.go####.com
and####.google####.com
api.kt####.cn
api.kt####.cn.####.8
c-h####.g####.com
cdn-sdk####.g####.com
cm-1####.g####.com
gmscomp####.google####.com
m####.go####.com
nbsdk-b####.al####.com
oc.u####.com
p####.google####.com
pla####.google####.com
rr13---####.g####.com
s####.e.qq.com
sdk-ope####.g####.com
sdk.c####.g####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
wb.110.ta####.com
y####.al####.com

HTTP GET requests:

cdn-sdk####.g####.com.####.cn/tdata_EDB102
cdn-sdk####.g####.com.####.cn/tdata_RBO669
cdn-sdk####.g####.com.####.cn/tdata_cpZ817
cdn-sdk####.g####.com.####.cn/tdata_uxr091
nbsdk-b####.al####.com:443/1.1.0.0/linkout.htm?appKey=####
nbsdk-b####.al####.com:443/3.1.1.206/24586685/1.0.0/meta.htm?plat=####
sdk-ope####.g####.com/api/addr.htm
sdk.c####.g####.####.cn/config/hzv9.conf
zb-cent####.m.ta####.com/gw-open/mtop.taobao.tbk.sdk.config/1.0/?data=####

HTTP POST requests:

a####.u####.com/app_logs
ada####.m.ta####.com/rest/sur?ak=####&av=####&c=####&v=####&s=####&d=###...
c-h####.g####.com/api.php?format=####&t=####
def####.ovs.us.####.com/saveWb.json
na61-####.wagbr####.ali####.####.com/api/update.do
oc.u####.com/v2/check_config_update
oc.u####.com/v2/get_update_time
s####.e.qq.com/activate
s####.e.qq.com/msg
sdk-ope####.g####.com/api.php?format=####&t=####
sdk-ope####.g####.com/api.php?format=####&t=####&d=####&k=####

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/0a231bd8575dcf72.txt
/data/data/####/1d77ea041509fe06.lock
/data/data/####/21c22f492aba3de8.lock
/data/data/####/7674c83c
/data/data/####/8ef9c457b3bbb403.lock
/data/data/####/930a31b34bd52c08.lock
/data/data/####/AlibcLinkPartner.xml
/data/data/####/Alvin2.xml
/data/data/####/BuglySdkInfos.xml
/data/data/####/ContextData.xml
/data/data/####/Cookies-journal
/data/data/####/SGMANAGER_DATA2
/data/data/####/SGMANAGER_DATA2.tmp
/data/data/####/SchurterPrefsFile.xml
/data/data/####/SchurterPrefsFile.xml.bak (deleted)
/data/data/####/UTCommon.xml
/data/data/####/WebViewChromiumPrefs.xml
/data/data/####/_ktplay.db
/data/data/####/_ktplay.db-journal
/data/data/####/a98d9cb47729
/data/data/####/ap.Lock
/data/data/####/auth_sdk_device.xml
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/classes.dex
/data/data/####/classes.oat
/data/data/####/classes2.dex
/data/data/####/ee42dccc2e804a1ddf4d05b54c04d983
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/gdt_plugin.dex
/data/data/####/gdt_plugin.dex.flock (deleted)
/data/data/####/gdt_plugin.jar
/data/data/####/gdt_plugin.jar.sig
/data/data/####/getui_sp.xml
/data/data/####/gkt-journal
/data/data/####/gx_sp.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/ktplay.dex
/data/data/####/ktplay.dex.flock (deleted)
/data/data/####/ktplay.xml
/data/data/####/ktplay_network_cache.db
/data/data/####/ktplay_network_cache.db-journal
/data/data/####/libjiagu.so
/data/data/####/libsgmain_312757200000.dex
/data/data/####/libsgmain_312757200000.dex.flock (deleted)
/data/data/####/libsgmainso-5.1.81.so
/data/data/####/libsgmainso-5.1.81.so.tmp
/data/data/####/libsgsecuritybody_312757200000.dex
/data/data/####/libsgsecuritybody_312757200000.dex.flock (deleted)
/data/data/####/libsgsecuritybodyso-5.1.25.so
/data/data/####/lock.lock
/data/data/####/onlineconfig_agent_online_setting_com.bycookie....er.xml
/data/data/####/proc_auxv
/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/####/sp.lock
/data/data/####/tdata_RBO669
/data/data/####/tdata_RBO669.dex
/data/data/####/tdata_RBO669.dex.flock (deleted)
/data/data/####/tdata_RBO669.jar
/data/data/####/tdata_cpZ817
/data/data/####/tdata_cpZ817.dex
/data/data/####/tdata_cpZ817.dex.flock (deleted)
/data/data/####/tdata_cpZ817.jar
/data/data/####/tdata_uxr091
/data/data/####/tdata_uxr091.dex
/data/data/####/tdata_uxr091.dex.flock (deleted)
/data/data/####/tdata_uxr091.jar
/data/data/####/timestamp
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_general_config.xml.bak (deleted)
/data/data/####/umeng_it.cache
/data/data/####/update_lc
/data/data/####/ut.db
/data/data/####/ut.db-journal
/data/media/####/.nomedia
/data/media/####/.uuid
/data/media/####/6c709c11d2d46a7b
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/app.db
/data/media/####/com.bycookie.memorytrainer.bin
/data/media/####/com.bycookie.memorytrainer.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/d
/data/media/####/dd7893586a493dc3
/data/media/####/gkt-journal
/data/media/####/gktper
/data/media/####/gktper (deleted)
/data/media/####/tdata_RBO669
/data/media/####/tdata_cpZ817
/data/media/####/tdata_uxr091
/data/media/####/test.log (deleted)

Miscellaneous:

Executes the following shell scripts:

cat /proc/cpuinfo
chmod 755 /data/user/0/<Package>/.jiagu/libjiagu.so
getprop
ip addr
mount

Loads the following dynamic libraries:

libgetuiext2
libjiagu
libsgmainso-5.1.81
libsgsecuritybodyso-5.1.25

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-ECB-PKCS5Padding

Accesses the ITelephony private interface.

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.

Displays its own windows over windows of other apps.

Requests the system alert window permission.

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