Analysis
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max time kernel
23s -
max time network
128s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
15-03-2021 15:41
Static task
static1
Behavioral task
behavioral1
Sample
138.dll
Resource
win7v20201028
General
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Target
138.dll
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Size
675KB
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MD5
46ea0661444ba5f0c09c59938883fcaa
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SHA1
dee40cdb15046a6a1f47445b6202034e9a0d77e6
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SHA256
18a3ed7a253f8e074805bfedc4cf6aab316ce4909913e2dc8aedbc19fce668ca
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SHA512
df0fc73283f7fe95c5db87b01981b708c32ab048ebf0234fd9c7273b1b6e530dd610409a7b0680b38527795f1ebb771569d185976aace3d1bfca8680921cfbac
Malware Config
Extracted
trickbot
100013
mon138
103.225.138.94:449
122.2.28.70:449
123.200.26.246:449
131.255.106.152:449
142.112.79.223:449
154.126.176.30:449
180.92.238.186:449
187.20.217.129:449
201.20.118.122:449
202.91.41.138:449
95.210.118.90:449
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autorunName:pwgrab
Signatures
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Templ.dll packer 3 IoCs
Detects Templ.dll packer which usually loads Trickbot.
Processes:
resource yara_rule behavioral2/memory/1240-3-0x00000000002F0000-0x0000000000329000-memory.dmp templ_dll behavioral2/memory/1240-4-0x0000000000330000-0x0000000000367000-memory.dmp templ_dll behavioral2/memory/1240-5-0x0000000004190000-0x00000000041C6000-memory.dmp templ_dll -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 16 api.ipify.org -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
wermgr.exedescription pid process Token: SeDebugPrivilege 1944 wermgr.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 1108 wrote to memory of 1240 1108 rundll32.exe rundll32.exe PID 1108 wrote to memory of 1240 1108 rundll32.exe rundll32.exe PID 1108 wrote to memory of 1240 1108 rundll32.exe rundll32.exe PID 1240 wrote to memory of 1576 1240 rundll32.exe cmd.exe PID 1240 wrote to memory of 1576 1240 rundll32.exe cmd.exe PID 1240 wrote to memory of 1576 1240 rundll32.exe cmd.exe PID 1240 wrote to memory of 1944 1240 rundll32.exe wermgr.exe PID 1240 wrote to memory of 1944 1240 rundll32.exe wermgr.exe PID 1240 wrote to memory of 1944 1240 rundll32.exe wermgr.exe PID 1240 wrote to memory of 1944 1240 rundll32.exe wermgr.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\138.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1108 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\138.dll,#12⤵
- Suspicious use of WriteProcessMemory
PID:1240 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe3⤵PID:1576
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C:\Windows\system32\wermgr.exeC:\Windows\system32\wermgr.exe3⤵
- Suspicious use of AdjustPrivilegeToken
PID:1944
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