bf6bc8ca3a99840471241fc42e8a495313b9cfa0564523c2639aede47afe07e6

Analysis

max time kernel
1565s
max time network
1570s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
19/07/2024, 03:43

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General

Target
source_prepared.pyc
Size 180KB
Sample240719-d91hasvbjc
SHA256 805c68ca3e4ce4a346e494d089fd5239bd044650b81578aaeeb8539a94230994
MD5 33845751d7e08e5f50725830a91c42f3
SHA1 66bece4ca45da224274eaa68524a9d610a1a5518
SHA512 d59d2a9f700179d5970758395f1387e942a3e3050de27dc02c28d4b4433280993100937b8d1d3a1f0d325256bb955edbb5d1a10e94db05dd6147abb7782eb5b8
SSDEEP 3072:Zr2LaLPA9Flt3opPEtelZN+thZa6CmgQDzWCknW:ZKWL6t3op8cN+rZa6CmgQDCCr
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-1-5-21-3502430532-24693940-2469786940-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_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-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000_CLASSES\pyc_auto_file\shell	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 2780 wrote to memory of 2596	2780	cmd.exe	31
PID 2780 wrote to memory of 2596	2780	cmd.exe	31
PID 2780 wrote to memory of 2596	2780	cmd.exe	31
PID 2596 wrote to memory of 2564	2596	rundll32.exe	32
PID 2596 wrote to memory of 2564	2596	rundll32.exe	32
PID 2596 wrote to memory of 2564	2596	rundll32.exe	32
PID 2596 wrote to memory of 2564	2596	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\source_prepared.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2780
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\source_prepared.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2596
- - 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\source_prepared.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 655b1491c8a0f9e4bb58774ad95fe08f3d56183638844790ffbbe396ba29859a
MD5 439c3030e8c5ed45b13f382a3937039c
SHA1 7bda2699eb71a3c364d8ca506416481d80dd779c
SHA512 00ccec71559b37bfb7b3a50e1b4eee3e5c73aaa642d1e2fcb9001c46569c488fcbf80ee593ee3013ea3b0af13de640e9b70d2a1db01d7f186751cd1ab27e75df
MD5 SHA1 SHA512

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