Adware.Gexin.3021

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) m.d####.mob.com:80
TCP(HTTP/1.1) apic####.mob.com:80
TCP(HTTP/1.1) a####.exc.mob.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) s####.ad####.com:80
TCP(HTTP/1.1) www.slan####.top:80
TCP(HTTP/1.1) cnf.ad####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) paye####.com:80
TCP(TLS/1.0) 1####.217.17.78:443
TCP(TLS/1.0) raw.githubu####.com:443
TCP(TLS/1.0) www.slan####.top:443
TCP c####.g####.ig####.com:5225
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
a####.exc.mob.com
a####.u####.com
apic####.mob.com
c####.g####.ig####.com
c-h####.g####.com
cnf.ad####.com
m.d####.mob.com
mt####.go####.com
paye####.com
pub-####.qin####.com
raw.githubu####.com
s####.ad####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
www.slan####.top

HTTP GET requests:

apic####.mob.com/appstore/calendar/day?key=####&date=####
m.d####.mob.com/v3/cconf?appkey=####&plat=####&apppkg=####&appver=####&n...
t####.c####.q####.####.com/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_EDT356
t####.c####.q####.####.com/tdata_MkX219
t####.c####.q####.####.com/tdata_iGj879
www.slan####.top//api/voicesbirds/getvoicebirdsrandomlist/v3/10
www.slan####.top/api/sys/getappadslist?appType=####

HTTP POST requests:

a####.exc.mob.com/errconf
a####.u####.com/app_logs
c-h####.g####.com/api.php?format=####&t=####
cnf.ad####.com/config/216/20170109001143/100785/1537901188275
paye####.com/api/v1/pay/init
s####.ad####.com/record/216/20170109001143/1537901190192
sdk.o####.p####.####.com/api.php?format=####&t=####

Modified file system:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/.lock
/data/data/####/03ef0f2afcc717cf3e01f61948a35615743ef5736d09d25....0.tmp
/data/data/####/17bfa8d4d822cb308d38a189c0c8e2b994b3f7156a6172e....0.tmp
/data/data/####/29b2e3aa7596f75d0fda1f1f56183907.xml
/data/data/####/37a631b9420197b7393c1b96ab3992ccdb82f5620978357....0.tmp
/data/data/####/506b396a4d0414efa8a13b5004bcbcde8f2b00db9f2f8fc....0.tmp
/data/data/####/53fb57bbf1b1cdc2c56f7a6ded2b13fab0977d828dfb06e....0.tmp
/data/data/####/68556d4667b1bc91199ed994d65caf913f72643c0901f4d....0.tmp
/data/data/####/78b3395ca559312dcd72bb113fd3d424226780f97a2b6e0....0.tmp
/data/data/####/961dc2bcf8f6baa41a0c9badb1cf25c39e0277aa4d759ee....0.tmp
/data/data/####/9c5554ebb565a16aec9bc7307ec039157e8e6309cfcc529....0.tmp
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/MultiDex.lock
/data/data/####/b4b1807f586c716c85abae0b804fa2c43fc5a2ac61efc6e....0.tmp
/data/data/####/bbb79b326134af2f5d22fcb38e8dbcb07e127cea1411a65....0.tmp
/data/data/####/ca7867b10194
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/ccffcc512ab8ad061a112eaa7699bd107066757f73dc548....0.tmp
/data/data/####/ecc35b44c0f1a918eefc5c47358c406c68a5fc8b26f1cca....0.tmp
/data/data/####/epay_data.xml
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/f8ee06076af004655f009831a54b13c5a48744084f8449e....0.tmp
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal.tmp
/data/data/####/libjiagu-1618479617.so
/data/data/####/mob_commons_1.xml
/data/data/####/mob_sdk_exception_1.xml
/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/####/share_data.xml
/data/data/####/tdata_MkX219
/data/data/####/tdata_MkX219.jar
/data/data/####/tdata_iGj879
/data/data/####/tdata_iGj879.jar
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/media/####/.dic_lock
/data/media/####/.duid
/data/media/####/.globalLock
/data/media/####/.nulplt
/data/media/####/.pkg_lock
/data/media/####/.rcTag
/data/media/####/.rc_lock
/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/####/tdata_MkX219
/data/media/####/tdata_iGj879
/data/media/####/test.log
/data/media/####/top.slantech.voicebirds.bin
/data/media/####/top.slantech.voicebirds.db

Miscellaneous:

Executes next shell scripts:

<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.services.DemoPushService 25347 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu-1618479617.so
mount
sh

Loads the following dynamic libraries:

getuiext2
libjiagu-1618479617
neh

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS7Padding
AES-ECB-NoPadding
RSA-ECB-PKCS1Padding
desede-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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