8f8e709127c6c77446a8c0a8c8bf3c8ee706a06cd44b1e827c3e6a2ee6b8c098

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
30/05/2024, 06:10

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General

Target

cffi/backend_ctypes.py
Size

41KB
MD5

cd7c9df758f20a9d6321e4ba47aa36f7
SHA1

bd77055c23e89af3b6834075b539b4c99a32cd61
SHA256

879648ccb73a0455579c6c9cf713ea656512eea1b2ef21520ea5deebc49af33e
SHA512

a916edc82c481a505e77a79793188a2dc2e88f4a570e7b4cf0ab063f895a66e018cf303bd70da4a97fbb4444f94b7fa7841f56c67f0ec8806d284e2d1fb3857c
SSDEEP

768:a2+VJgPGF+Ob5ppcyi5j+5LOoXjK9Esnv/TZwQeZgeDYDbDwDC+ADYFio5+nyxDs:V+VJgPetrhPXjRs9OZgMCvq8DYFio5+t

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\py_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\py_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\py_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.py	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\py_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2768	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2768	AcroRd32.exe
2768	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2896 wrote to memory of 2556	2896	cmd.exe	29
PID 2896 wrote to memory of 2556	2896	cmd.exe	29
PID 2896 wrote to memory of 2556	2896	cmd.exe	29
PID 2556 wrote to memory of 2768	2556	rundll32.exe	30
PID 2556 wrote to memory of 2768	2556	rundll32.exe	30
PID 2556 wrote to memory of 2768	2556	rundll32.exe	30
PID 2556 wrote to memory of 2768	2556	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\cffi\backend_ctypes.py
1⤵
- Suspicious use of WriteProcessMemory
PID:2896
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\cffi\backend_ctypes.py
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2556
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\cffi\backend_ctypes.py"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2768

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
5a6d276fbcfbd46d40df7ec898d952b2

SHA1
8bf4cde86761146247c121af84ca41af2c4c0c69

SHA256
dadadee4e36cbaa1ead5dcc0e10fa8f06e5cb09f2d481b3860b47b9dc706d096

SHA512
441fb7ec53e70780c6e8c85197d120acf6520117572805caeb805c11c030c22193e1c864aee6cc7b30fa142f9a43301aebdea7d6c25af41e7a033b5e4682c871

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