Adware.Gexin.4362

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) mapve####.jom####.com:80
TCP(HTTP/1.1) newcl####.map.b####.com:80
TCP(HTTP/1.1) m.d####.mob.com:80
TCP(HTTP/1.1) d####.d####.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) and####.b####.qq.com:80
TCP(HTTP/1.1) 2####.107.33.85:80
TCP(HTTP/1.1) api.map.b####.com:80
TCP(HTTP/1.1) 4####.96.6.17:8781
TCP(HTTP/1.1) api.s####.mob.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) cl####.map.n.####.com:80
TCP(HTTP/1.1) 4####.96.6.17:80
TCP(TLS/1.0) api.map.b####.com:443
TCP(TLS/1.0) loc.map.b####.com: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.map.b####.com
api.s####.mob.com
c####.g####.ig####.com
c-h####.g####.com
cl####.map.b####.com
d####.d####.mob.com
loc.map.b####.com
m.d####.mob.com
newcl####.map.b####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
vector####.b####.com

HTTP GET requests:

api.map.b####.com/sdkproxy/v2/lbs_androidsdk/geocoder/v2?location=####&c...
cl####.map.n.####.com/imap/sdk/tj?qt=####&mb=####&os=####&sv=####&net=##...
cl####.map.n.####.com/offline-search/?action=####&qt=####&offsv=####&off...
m.d####.mob.com/v2/cconf?appkey=####&plat=####&apppkg=####&appver=####&n...
mapve####.jom####.com/vecdata/?qt=####&c=####&v=####&fv=####&mb=####&os=...
mapve####.jom####.com/vecdata/?qt=####&c=####&v=####&serv=####&fv=####&m...
mapve####.jom####.com/vecdata/?qt=####&fv=####&p=####&mb=####&os=####&sv...
newcl####.map.b####.com/client/phpui2/?action=####&rp_format=####&qt=###...
t####.c####.q####.####.com/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_MkX219
t####.c####.q####.####.com/tdata_iGj879

HTTP POST requests:

a####.exc.mob.com/errconf
and####.b####.qq.com/rqd/async?aid=####
api.s####.mob.com/conf5
api.s####.mob.com/conn
api.s####.mob.com/snsconf
c-h####.g####.com/api.php?format=####&t=####
d####.d####.mob.com/dinfo
d####.d####.mob.com/dsign
sdk.o####.p####.####.com/api.php?format=####&t=####

Modified file system:

Creates the following files:

/data/data/####/.jg.ic
/data/data/####/.lock
/data/data/####/.mrecord
/data/data/####/.mrlock
/data/data/####/.statistics
/data/data/####/1004
/data/data/####/441b3157a946de8a0f017c5b42b91a6d28ea3f0bdae2d58....0.tmp
/data/data/####/CustomIndex
/data/data/####/DVDirectory.cfg
/data/data/####/DVDirectory.cfg_seg
/data/data/####/DVHotMap.cfg
/data/data/####/DVHotcity.cfg
/data/data/####/DVHotcity.cfg_seg
/data/data/####/DVIndoor.cfg
/data/data/####/DVSDirectory.cfg
/data/data/####/DVSDirectory.cfg_seg
/data/data/####/DVVersion.cfg
/data/data/####/ResPackIndoorMap.rs
/data/data/####/ThrowalbeLog.db-journal
/data/data/####/authStatus_cn.com.shopec.hm.xml
/data/data/####/authStatus_cn.com.shopec.hm;pushservice.xml
/data/data/####/authStatus_cn.com.shopec.hm;remote.xml
/data/data/####/baseindoormap.sty
/data/data/####/bugly_db_-journal
/data/data/####/bus.sty
/data/data/####/car.sty
/data/data/####/crashrecord.xml
/data/data/####/cycle.sty
/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/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/journal.tmp
/data/data/####/libcuid.so
/data/data/####/libjiagu469134835.so
/data/data/####/local_crash_lock
/data/data/####/map.rs
/data/data/####/map.sty
/data/data/####/map.sty_seg
/data/data/####/map.sty_svc
/data/data/####/map_pref.xml
/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/####/reduct.rs
/data/data/####/reduct.sty
/data/data/####/run.pid
/data/data/####/security_info
/data/data/####/share_sdk_1.xml
/data/data/####/share_sdk_1.xml (deleted)
/data/data/####/sharesdk.db-journal
/data/data/####/sharingcar_app.xml
/data/data/####/shopec-journal
/data/data/####/tdata_MkX219
/data/data/####/tdata_MkX219.jar
/data/data/####/tdata_iGj879
/data/data/####/tdata_iGj879.jar
/data/data/####/traffic.rs
/data/data/####/traffic.sty
/data/data/####/ver.dat
/data/media/####/.al
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/.dh-journal
/data/media/####/.dhlock
/data/media/####/.dic_lock
/data/media/####/.duid
/data/media/####/.globalLock
/data/media/####/.nomedia
/data/media/####/.nulal
/data/media/####/.nulplt
/data/media/####/.pkg_lock
/data/media/####/.plst
/data/media/####/.rcTag
/data/media/####/.rc_lock
/data/media/####/2018110616.log
/data/media/####/DTTempdat.dat
/data/media/####/DTTempdat.idx
/data/media/####/DVUserdat.cfg
/data/media/####/app.db
/data/media/####/cn.com.shopec.hm.bin
/data/media/####/cn.com.shopec.hm.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.0
/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>/<Package>.common.push.PushService 24521 300 0
app_process /system/bin com.android.commands.pm.Pm list packages
chmod 700 <Package Folder>/files/gdaemon_20161017
getprop
grep -E -v root|shell|system
logcat *:e | grep (2336)
logcat *:e | grep (2369)
logcat *:e | grep (2529)
pm list packages
sh
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.common.push.PushService 24521 300 0
top -d 0 -n 1

Loads the following dynamic libraries:

BaiduMapSDK_base_v5_0_0
BaiduMapSDK_map_for_bikenavi_v5_0_0
Bugly
getuiext2
libjiagu469134835
locSDK7b
neh

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-ECB-NoPadding
AES-GCM-NoPadding

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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