3dc9d0171b42daf90e93b60a7f5499e8d0ef8d9de3d398db3ea009ef0ea394bb

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
22/09/2024, 00:17

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General

Target

Stub.pyc
Size

876KB
MD5

e3b59149a029557d774fc09874c366f3
SHA1

b9ae5008711b77f720685364879efb7b3e03f263
SHA256

f265a5dbdae6716add53c2e3b71033753c837fd676704ad030ff20a5ba6d975d
SHA512

f3e301660538552ca023a90494d900f62712d7f211fc529ab651af1204fd8c3174bbeeac5dc57b63e7705dff154d9d95ec4632f036a30a08eeb736f5e547eb48
SSDEEP

24576:8X7m2uZNPAUjuawX4FZiYsiTupR2DjTJx86:kdXMPqa86

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
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_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-1-5-21-1506706701-1246725540-2219210854-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000_CLASSES\pyc_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1536	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1536	AcroRd32.exe
1536	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1056 wrote to memory of 2872	1056	cmd.exe	29
PID 1056 wrote to memory of 2872	1056	cmd.exe	29
PID 1056 wrote to memory of 2872	1056	cmd.exe	29
PID 2872 wrote to memory of 1536	2872	rundll32.exe	30
PID 2872 wrote to memory of 1536	2872	rundll32.exe	30
PID 2872 wrote to memory of 1536	2872	rundll32.exe	30
PID 2872 wrote to memory of 1536	2872	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Stub.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:1056
- 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:1536

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
decc5fd0e82f37eb725aa8f7efb780ee

SHA1
325e1c19c92836a10284ec56e1fe8dda86fe5a3f

SHA256
48b260e4850319dfdb36768b1e5aa1449b0e0e12886b6b0bc04bd0568ed0e302

SHA512
1a930f578af02990fa05fcfbda70db3cef95223d2c6612c1292b8083bfe595dbb3faabe8a4b262d6203cadd21b70d1f00800b39ddd425ba8a493200add3c309f

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