3730e39b3e79b79fa2208e5f62b897a48f489a86e5ffa66302b28bc6a8a5429b

Analysis

max time kernel
66s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
25/10/2022, 16:20

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General

Target

CFDI_61337.rar
Size

896KB
MD5

99a109a4a604f2a718666d81d42c91a8
SHA1

866bb0897e6afd40994741cc7ebd49ba860d58f8
SHA256

82db31bbaeb3b0a59afcdd95e49a49922bfa927d8c3396bf4f0f3f819e31100d
SHA512

e85cd6fe32b87165228173e93405da0bbc4062058a0b5c41be0fb225cf33155ef056ed21e25156130f5043d7a14b3520f6a600a14b8097c21c1d1f154cb0b37b
SSDEEP

24576:ttuQUZiN0fAj3i+sBS+gWYItphZriTncZ5Hxk:ttuQMklu+sY+gWYIttrOcxk

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: 33	1492	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1492	AUDIODG.EXE
Token: 33	1492	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1492	AUDIODG.EXE
Token: SeRestorePrivilege	1584	7zG.exe
Token: 35	1584	7zG.exe
Token: SeSecurityPrivilege	1584	7zG.exe
Token: SeSecurityPrivilege	1584	7zG.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1584	7zG.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 240 wrote to memory of 1008	240	cmd.exe	29
PID 240 wrote to memory of 1008	240	cmd.exe	29
PID 240 wrote to memory of 1008	240	cmd.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\CFDI_61337.rar
1⤵
- Suspicious use of WriteProcessMemory
PID:240
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\CFDI_61337.rar
  2⤵
  - Modifies registry class
  PID:1008

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
1⤵
PID:896

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x4c0
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1492

C:\Program Files\7-Zip\7zG.exe
"C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\AppData\Local\Temp\CFDI_61337\" -spe -an -ai#7zMap25398:100:7zEvent23571
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1584

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/240-54-0x000007FEFB741000-0x000007FEFB743000-memory.dmp

Filesize
8KB

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