c8d720612e33704b360d41d623010187cc29b0cc7a9809120a0d7306d3cd22db

Analysis

max time kernel
283s
max time network
344s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
06-12-2022 19:02

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General

Target

c8d720612e33704b360d41d623010187cc29b0cc7a9809120a0d7306d3cd22db.dll
Size

171KB
MD5

8c0c2527086d57172e75292a150450a6
SHA1

f3170ee5b296f561281a33a38b9e24aafbb95e81
SHA256

c8d720612e33704b360d41d623010187cc29b0cc7a9809120a0d7306d3cd22db
SHA512

47fbb9dbbaaac04b356bc7c7104c07e90a3bbd32bbc0832c1b8698fa02ca1aea193736894870a94431ced569a597db29da9afb307f4f70800b9344302f0c1905
SSDEEP

3072:Nd1t3qieZu1jDv+pbceOedNvviYK7JLZGIyNpEcVkOGMnIfCG7os0j71:/1tAc1B0NvviYK7JLZGDpEBOGsIfCG7

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,rundll32.exe start"	rundll32.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\mywinsys.ini	rundll32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3944	rundll32.exe
3944	rundll32.exe
3944	rundll32.exe
3944	rundll32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3944	rundll32.exe
Token: SeDebugPrivilege	3944	rundll32.exe
Token: SeDebugPrivilege	3944	rundll32.exe
Token: SeDebugPrivilege	3944	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2624 wrote to memory of 3944	2624	rundll32.exe	80
PID 2624 wrote to memory of 3944	2624	rundll32.exe	80
PID 2624 wrote to memory of 3944	2624	rundll32.exe	80

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c8d720612e33704b360d41d623010187cc29b0cc7a9809120a0d7306d3cd22db.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2624
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\c8d720612e33704b360d41d623010187cc29b0cc7a9809120a0d7306d3cd22db.dll,#1
  2⤵
  - Modifies WinLogon for persistence
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3944

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3944-132-0x0000000000000000-mapping.dmp

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