f11256d219127c83f602f1063c935c75a0289f2511a0ddd0bdf2f9a9a651c157

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
19-07-2024 13:20

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General

Target

Stub.pyc
Size

799KB
MD5

705da82030cf97b716a775f4a4335381
SHA1

8cea03a5d4fcd6fbada33bbab15ef35d2e3a5a8d
SHA256

6153089a1d50a4e2970527068ab4ec986ba69c0b99d671b2fdf7caa7e9b0bb52
SHA512

28353cc9a587b4e6a197858f722cd9d68b666909b91f761c29291f3824299f96eea04f0271e4597463696030aee10f7f1b317bff3cb48327226bfbd3839d8a57
SSDEEP

24576:yq+9LVYGL67E0JzuJPKTXT7DFo4mEJIRo:kLZ0QJ+LX

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
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_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-1-5-21-3551809350-4263495960-1443967649-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1152	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1152	AcroRd32.exe
1152	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 2748	2348	cmd.exe	32
PID 2348 wrote to memory of 2748	2348	cmd.exe	32
PID 2348 wrote to memory of 2748	2348	cmd.exe	32
PID 2748 wrote to memory of 1152	2748	rundll32.exe	33
PID 2748 wrote to memory of 1152	2748	rundll32.exe	33
PID 2748 wrote to memory of 1152	2748	rundll32.exe	33
PID 2748 wrote to memory of 1152	2748	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Stub.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2348
- 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:2748
- - 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:1152

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
8f5e7cff20fabfc341f5099c965e8b6e

SHA1
71cae52bce4ea5110300e2e146e7b14d776d4e31

SHA256
c358fde0c96e48730e65c7dc2b69975190891816826e6020b25c76b888e2739a

SHA512
79c84825d14bbe037fac8a58495bba8f36bb58a93164647dfb713940023d439b84e570d52b1e6631785f74530c94b3ed8b495922d9c4f08e28dd9df101d04b40

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