c0f7a1deef7c6aa8d436d447d2ccd2df46b5d08a810e9e161040834ec592643d

Analysis

max time kernel
175s
max time network
187s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
03-12-2022 17:57

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General

Target

c0f7a1deef7c6aa8d436d447d2ccd2df46b5d08a810e9e161040834ec592643d.dll
Size

610KB
MD5

c801ec84e76857a3c1461d52712259df
SHA1

750a58e62efc16c27becf4309720fdf9a0a2b7dc
SHA256

c0f7a1deef7c6aa8d436d447d2ccd2df46b5d08a810e9e161040834ec592643d
SHA512

5df18750800bec8b2db442903f1e06b517155e7ee649f9b35fc45cae7f3ace61e8c08ed16b28c22cec62f1c23951e84707976d6b7971c9154d5fe34f9c47f60f
SSDEEP

12288:y4G/5NwYkK19iOCr+TMoO30mYn0YaAsG5QgxM5DKTrH5SZs2o:y4GAK19iOCr+TMoO30mYn0YaAsNgxM50

Score

8^/10

persistence

Malware Config

Signatures

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\.Net CLR\Parameters\ServiceDll = "C:\\Users\\Admin\\AppData\\Local\\Temp\\c0f7a1deef7c6aa8d436d447d2ccd2df46b5d08a810e9e161040834ec592643d.dll"	rundll32.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	rundll32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3400	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3972 wrote to memory of 3400	3972	rundll32.exe	79
PID 3972 wrote to memory of 3400	3972	rundll32.exe	79
PID 3972 wrote to memory of 3400	3972	rundll32.exe	79
PID 4808 wrote to memory of 4468	4808	svchost.exe	81
PID 4808 wrote to memory of 4468	4808	svchost.exe	81
PID 4808 wrote to memory of 4468	4808	svchost.exe	81
PID 3400 wrote to memory of 3596	3400	rundll32.exe	82
PID 3400 wrote to memory of 3596	3400	rundll32.exe	82
PID 3400 wrote to memory of 3596	3400	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c0f7a1deef7c6aa8d436d447d2ccd2df46b5d08a810e9e161040834ec592643d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3972
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\c0f7a1deef7c6aa8d436d447d2ccd2df46b5d08a810e9e161040834ec592643d.dll,#1
  2⤵
  - Sets DLL path for service in the registry
  - Checks computer location settings
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3400
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del "C:\Windows\SysWOW64\rundll32.exe" > nul
    3⤵
    PID:3596

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k ".Net CLR"
1⤵
- Suspicious use of WriteProcessMemory
PID:4808
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe c:\users\admin\appdata\local\temp\c0f7a1deef7c6aa8d436d447d2ccd2df46b5d08a810e9e161040834ec592643d.dll, Launch
  2⤵
  PID:4468

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3400-132-0x0000000000000000-mapping.dmp

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memory/3596-134-0x0000000000000000-mapping.dmp

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memory/4468-133-0x0000000000000000-mapping.dmp

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