2b5f203f9173f23ad27fb186d24cdfca00d8b886e5376525c0d585eae5753a8b

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
10/06/2024, 14:05

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General

Target
Stub.pyc
Size 875KB
Sample240610-rd43haycnd
SHA256 f749878d204c8cc6b19dba3ecede75b92beb0e1b9ee0cb220644080799b96101
MD5 78b4a1a73d32ca48177372923e91dab9
SHA1 0173812e7d1556b0645049e4253ea5f3ffd62706
SHA512 eef4d24d9f9be2edba6344ac39eb65ea120de0ac74e966d66d0d2e6b08d493a6e1e01cab8a4691a5897a6a442e6062926ba7a50c7517f1eb4808556ec0ff2931
SSDEEP 12288:7Q1s3DV2KESUCnSntUW6kgkqfbC/iXY1Ymv3KJBG58omWYgh0LMj5TFdXO/OcOvn:7Q1tQnSJ6HfdXWPOXG0+XQOcOXM8HLn
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-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_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
2564	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2564	AcroRd32.exe
2564	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 2608	2292	cmd.exe	29
PID 2292 wrote to memory of 2608	2292	cmd.exe	29
PID 2292 wrote to memory of 2608	2292	cmd.exe	29
PID 2608 wrote to memory of 2564	2608	rundll32.exe	30
PID 2608 wrote to memory of 2564	2608	rundll32.exe	30
PID 2608 wrote to memory of 2564	2608	rundll32.exe	30
PID 2608 wrote to memory of 2564	2608	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Stub.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2292
- 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:2608
- - 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:2564

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 0ec1bf12270abf95300c12656419f8fb6d1d231b356acbc8a5f0eafb707bb0fb
MD5 bd615119b48eacc315d3cc9eff020d5f
SHA1 e21d9784f3decdd59b985ad5836cdbd95a8ea029
SHA512 7b2c3373b1994578189c9a48d3219a156b28ac9310c7b72c9bf194ce3cc162c3b63f2e53ce392300a9f82943ae8a064be210a6a86dbc38273546dc1a1e9a41a0
MD5 SHA1 SHA512

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