aa262cc1ddfb11c8e14f8628fe7af6f796b8da482f67aeb3f487cfb7567111a4

Analysis

max time kernel
122s
max time network
122s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
19/07/2024, 04:07

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General

Target

Stub.pyc
Size

875KB
MD5

aa3f78f425af3e9980c6dc1d11c8ccfb
SHA1

98c82b1a60bbc0b88c23e0858dc54a7448def95c
SHA256

c15f682d5704649934eed26c40e34e71621933a9a60ab38e500e4a1dce84c334
SHA512

83ceba6cae67e94d696472d8ad9e3e4cb42178cd78713af26ff4b578ab0c4033d95c0a8ffa82a8ee6d7869069d1de04ae5d47b3d203dce1a78a6b10361e25538
SSDEEP

12288:vOfvwDWpnW4fai+EQbMcGIi5wgCjL6ncOWgMd9XpzQ/NIOm3FbhAYfQR69vsua:W3wUnRaizcQgL9OW31XhZwT

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-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2860	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2860	AcroRd32.exe
2860	AcroRd32.exe
2860	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 2800	2320	cmd.exe	31
PID 2320 wrote to memory of 2800	2320	cmd.exe	31
PID 2320 wrote to memory of 2800	2320	cmd.exe	31
PID 2800 wrote to memory of 2860	2800	rundll32.exe	33
PID 2800 wrote to memory of 2860	2800	rundll32.exe	33
PID 2800 wrote to memory of 2860	2800	rundll32.exe	33
PID 2800 wrote to memory of 2860	2800	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Stub.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2320
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Stub.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2800
- - 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\Stub.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2860

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
ddcfb024ab964f82a65a29b1cb0e595d

SHA1
39a2806d84bb711b6a57e2d8757b0547dcd4ec58

SHA256
56bce94a8b3a77a47d2fe6d0209abb50b21aea573bf0e86ccdec5aea18752751

SHA512
bab63e13acf9ccb169d563c10f79b991e8c5a505eb31c7ebb9014b3824feaad030fd974c067eb39b3db18d11d313a86193b6b7686a4c5a4c13851e96cbb4c0b6

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