7d0e9c05b116984f6a7cee2970b40cf883e6e9510cd4d18fa55aa2efe53396de

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15/03/2025, 13:15

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General

Target

Stub.pyc
Size

874KB
MD5

f8f8965fdf61cae85946f9d9fa494a87
SHA1

cc50b1d22dc263fdabdc420ee9c51a4cfa7ed9af
SHA256

2efbb283ee3a77238f236bffd2d4fc4de1400a986df6457bfab1be4c24850092
SHA512

39f6339bcdab430234edf1c5519ed3e4484e88c5b6e06d135842ba8c3938c83cf63913caa6c56fc883d2c6fbf89303af0bfaf71acda1ae260fde19d46ee60c77
SSDEEP

24576:5FI+iBDlYn2MEw4F6wwpOP1i+kzagAEMXYMyUe3:PLgqpqrQ3

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 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2552	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2552	AcroRd32.exe
2552	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2704 wrote to memory of 2872	2704	cmd.exe	31
PID 2704 wrote to memory of 2872	2704	cmd.exe	31
PID 2704 wrote to memory of 2872	2704	cmd.exe	31
PID 2872 wrote to memory of 2552	2872	rundll32.exe	32
PID 2872 wrote to memory of 2552	2872	rundll32.exe	32
PID 2872 wrote to memory of 2552	2872	rundll32.exe	32
PID 2872 wrote to memory of 2552	2872	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Stub.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2704
- 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:2872
- - 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 behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2552

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

Replay Monitor

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Downloads

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

Filesize
3KB

MD5
264d9bd2b883482be579c74f45f53923

SHA1
f7e44f2d2104f1c8857ff1eed164f3b99df79b62

SHA256
558448760b6b8603f64bd3a139a06344a1c0066108c07f92cad2a3459fd26a3a

SHA512
1bced7bd2ab8381ea0ee5cc2203d261bacb2d9b2ffefe487ead897083d948e5def152fe68ed12b04c13c306f1d878b95331eff69db67a1c2e91ec8fff321bcc8

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