ebd33124981919a44841c9e215f91f622843ab2ea0c96cf1bcd44a82feb4dc1f

Analysis

max time kernel
18s
max time network
19s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
01/09/2024, 01:19

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General

Target

Stub.pyc
Size

875KB
MD5

362a5b1efbbda44240533e13cad8f122
SHA1

d90715b86e44fba5383c967c1d36e6ac15b38e47
SHA256

9318ab1fefde5fdbb18fb4bc01cd29c5c048565b1a07b049874bea3d90041aed
SHA512

fa771ae4cc93893582941ec9d1f66d2bc96bd16ecdbaf7974d1c8638a890ba790efd23554827816e9e1bdb91fab16751ef691da72b8f20a0af2bb46f23540688
SSDEEP

24576:YfnsmgKBdjdB4fjWIS/BRSVgYIjYR4KYpqhNaarU:szj4fujMmnpiaaY

Score

3^/10

discovery

Malware Config

Signatures

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pyc_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2636	AcroRd32.exe
2636	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2796	2112	cmd.exe	31
PID 2112 wrote to memory of 2796	2112	cmd.exe	31
PID 2112 wrote to memory of 2796	2112	cmd.exe	31
PID 2796 wrote to memory of 2636	2796	rundll32.exe	32
PID 2796 wrote to memory of 2636	2796	rundll32.exe	32
PID 2796 wrote to memory of 2636	2796	rundll32.exe	32
PID 2796 wrote to memory of 2636	2796	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Stub.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2112
- 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:2796
- - 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⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2636

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
3KB

MD5
e39a27ea674b060d3a1e279df8a49c2e

SHA1
5eace08212345c12c17d9adec67914b0ded6b3cc

SHA256
0844cd1020e0409082a5ab4942a4f8354878f9f07cf25253775aefb7135a87fe

SHA512
637160bc190664a8f6559742ea4fb05e9115fb50835c4e679d43020ca2cb0f008419fc3c6f285ff1d1df3f739e9480a8708b20bff92d572f9305cb1d215a9497

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