Analysis
-
max time kernel
136s -
max time network
139s -
platform
windows10_x64 -
resource
win10 -
submitted
10-07-2020 10:53
Static task
static1
Behavioral task
behavioral1
Sample
update.dll
Resource
win7v200430
General
-
Target
update.dll
-
Size
687KB
-
MD5
95ac93bd02b3560a77a378d81bc203bf
-
SHA1
b1a69dcac677a701df089f0eb4e3a195f435fb4a
-
SHA256
f0dc0efcd9d6cb23cd57f3b26e390e337d8237f1d699b30196d4eacb1d67b300
-
SHA512
c7b9ece08af3b30448d5dd8def82a0155a5919b0507d424c26298f8d862b91d745ebe62ea2821ff8c2da0da1289038c2b6832f1b5e69920044aa4db950425d50
Malware Config
Extracted
trickbot
1000512
chil63
95.171.16.42:443
185.90.61.9:443
5.1.81.68:443
185.99.2.65:443
134.119.191.11:443
85.204.116.100:443
78.108.216.47:443
51.81.112.144:443
194.5.250.121:443
185.14.31.104:443
185.99.2.66:443
107.175.72.141:443
192.3.247.123:443
134.119.191.21:443
85.204.116.216:443
91.235.129.20:443
181.129.104.139:449
181.112.157.42:449
181.129.134.18:449
131.161.253.190:449
121.100.19.18:449
190.136.178.52:449
45.6.16.68:449
110.232.76.39:449
122.50.6.122:449
103.12.161.194:449
36.91.45.10:449
110.93.15.98:449
80.210.32.67:449
103.111.83.246:449
200.107.35.154:449
36.89.182.225:449
36.89.243.241:449
36.92.19.205:449
110.50.84.5:449
182.253.113.67:449
36.66.218.117:449
-
autorunName:pwgrab
Signatures
-
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 3920 wrote to memory of 3904 3920 rundll32.exe rundll32.exe PID 3920 wrote to memory of 3904 3920 rundll32.exe rundll32.exe PID 3920 wrote to memory of 3904 3920 rundll32.exe rundll32.exe PID 3904 wrote to memory of 3844 3904 rundll32.exe wermgr.exe PID 3904 wrote to memory of 3844 3904 rundll32.exe wermgr.exe PID 3904 wrote to memory of 3844 3904 rundll32.exe wermgr.exe PID 3904 wrote to memory of 3844 3904 rundll32.exe wermgr.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
wermgr.exedescription pid process Token: SeDebugPrivilege 3844 wermgr.exe Token: SeDebugPrivilege 3844 wermgr.exe Token: SeDebugPrivilege 3844 wermgr.exe -
Templ.dll packer 2 IoCs
Detects Templ.dll packer which usually loads Trickbot.
Processes:
resource yara_rule behavioral2/memory/3904-1-0x0000000000250000-0x000000000027E000-memory.dmp templ_dll behavioral2/memory/3904-2-0x0000000010000000-0x000000001002D000-memory.dmp templ_dll -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\update.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3920 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\update.dll,#12⤵
- Suspicious use of WriteProcessMemory
PID:3904 -
C:\Windows\system32\wermgr.exeC:\Windows\system32\wermgr.exe3⤵
- Suspicious use of AdjustPrivilegeToken
PID:3844