Analysis
-
max time kernel
138s -
max time network
140s -
platform
windows10_x64 -
resource
win10v200430 -
submitted
29-06-2020 18:06
Static task
static1
Behavioral task
behavioral1
Sample
update.dll
Resource
win7
General
-
Target
update.dll
-
Size
548KB
-
MD5
b1d79a3bf998b8b7621ae5e965f7a0a4
-
SHA1
e6a35a0de7d6fd3f623136718a7fd107b092bc73
-
SHA256
5b53e93d56e20740ef468c0dc16bf4b0dc459007637874f1b2e8094f7d41e0a2
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SHA512
7fb91d1d8c2931655c1b4599d99a5ef99cfa50a6671b1d675e70956694638471a44ae8615b5f241f4e182e3017d218e293d4fb92d45e28a03dedcb070f220097
Malware Config
Extracted
trickbot
1000512
chil50
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
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Suspicious use of WriteProcessMemory 7 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 992 wrote to memory of 1796 992 rundll32.exe rundll32.exe PID 992 wrote to memory of 1796 992 rundll32.exe rundll32.exe PID 992 wrote to memory of 1796 992 rundll32.exe rundll32.exe PID 1796 wrote to memory of 1660 1796 rundll32.exe wermgr.exe PID 1796 wrote to memory of 1660 1796 rundll32.exe wermgr.exe PID 1796 wrote to memory of 1660 1796 rundll32.exe wermgr.exe PID 1796 wrote to memory of 1660 1796 rundll32.exe wermgr.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
wermgr.exedescription pid process Token: SeDebugPrivilege 1660 wermgr.exe Token: SeDebugPrivilege 1660 wermgr.exe Token: SeDebugPrivilege 1660 wermgr.exe -
Templ.dll packer 2 IoCs
Detects Templ.dll packer which usually loads Trickbot.
Processes:
resource yara_rule behavioral2/memory/1796-1-0x0000000000E80000-0x0000000000EAE000-memory.dmp templ_dll behavioral2/memory/1796-2-0x0000000000F80000-0x0000000000FAD000-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
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\update.dll,#12⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\wermgr.exeC:\Windows\system32\wermgr.exe3⤵
- Suspicious use of AdjustPrivilegeToken