4460550a5e1490f6830cc53423ad959b3a759522135675d5aa1466bc7c2b2369

Resubmissions

09/06/2024, 00:14

240609-ajma7saf4110

09/06/2024, 00:12

240609-ahdyfaaf3w10

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/06/2024, 00:12

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General

Target
Stub.pyc
Size 874KB
Sample240609-ahdyfaaf3w
SHA256 5c2850d632aa3d1f4f8ba218b8dd6ad27b47d1544f50ad87601f474ca7b5bfdc
MD5 c5d22204a442515852ca5b8ae50bce01
SHA1 6fb039a017f3bd402b30c73badb6e0839eac71d8
SHA512 cb8c182deeebd814925c0432ecf89e2e856a367b9d9db7620f27f7600f1731a1c1ea1f4eaf7cbbd44512a063b365da7f36b411580622b0bb6f69db8f4aa2ce87
SSDEEP 12288:HygW+F3mtdunP+ACWoQrlQJKLDLKxrTfWalcxeYlYIQ/DPaQSg5spq36mqrPaLR:HlfF3wz2OJAuxHlxYCXDQuspuMrKR
MD5 SHA1 SHA512 SSDEEP

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-1-5-21-1298544033-3225604241-2703760938-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pyc_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_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
2536	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2536	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2536	AcroRd32.exe
2536	AcroRd32.exe
2536	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1888 wrote to memory of 2056	1888	cmd.exe	29
PID 1888 wrote to memory of 2056	1888	cmd.exe	29
PID 1888 wrote to memory of 2056	1888	cmd.exe	29
PID 2056 wrote to memory of 2536	2056	rundll32.exe	30
PID 2056 wrote to memory of 2536	2056	rundll32.exe	30
PID 2056 wrote to memory of 2536	2056	rundll32.exe	30
PID 2056 wrote to memory of 2536	2056	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Stub.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:1888
- 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:2056
- - 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 FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    PID:2536

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

SharedDataEvents

Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Size 3KB
SHA256 6220a83412418de447b270fd8def2c3dc0c8ce93f8568ca206f8dc3639bd5834
MD5 2184758730f996f8957218bb95588697
SHA1 b258422dd5b1fd9087ec260ed103c7fc3bcbfcb6
SHA512 054b9e46f8b2c92645853ba773cd5e6ebe3b2a220ad51a997b40ae2579476b4d56e93082b77ccabe2648155e2ed6b7753067d41766754a3554ec83dbbd0ae22a
MD5 SHA1 SHA512

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