5f5a6f09d4183d15bf42c3e3b690617b6f322c2803bb6a41fb8f9aadc70de0f8

Analysis

max time kernel
121s
max time network
129s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05-05-2024 00:56

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General

Target

loader.pyc
Size

67KB
MD5

6843981d50b58a543be8b54171fff324
SHA1

5dd782df82782c9ad5277d817de15c2dac895adf
SHA256

b791d45d65ce48596b9dc801e2964655901b03374755428ac00ed8eaa154f6d6
SHA512

3a74127a689fd64207dc2911488dc49b8280c47a7949e69f9e83587c1edf6fa9b74cb38ac39942bd49576db8c687aadc59c16cb54220934a7bac162e3395668f
SSDEEP

768:y2mfPySSEcm2M26Khssz6or+01N0gd4q30hE2LXTxlwvOLYsfPGMmgt0AnjEUnrO:y2YSEh0e6LBE/xcGPGMmgtF4qrc3

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-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_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-1-5-21-330940541-141609230-1670313778-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.pyc	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2680	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2680	AcroRd32.exe
2680	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2184 wrote to memory of 2584	2184	cmd.exe	29
PID 2184 wrote to memory of 2584	2184	cmd.exe	29
PID 2184 wrote to memory of 2584	2184	cmd.exe	29
PID 2584 wrote to memory of 2680	2584	rundll32.exe	30
PID 2584 wrote to memory of 2680	2584	rundll32.exe	30
PID 2584 wrote to memory of 2680	2584	rundll32.exe	30
PID 2584 wrote to memory of 2680	2584	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\loader.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2184
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\loader.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2584
- - 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\loader.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2680

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
d5f91af007f033180542bd2c92f9590d

SHA1
1bb7bc205c3a3a2f48319bd56348c8f526e6aafe

SHA256
d2dc10000a746536907c7e5c09b21d7484a2f8f357b3eade61ca49133199953d

SHA512
784769ee57f9782c3b253e49e6a3a61acc09cf8773eaa671df2e07e315216f3017af9c3a8ea613d0e94c33fc4463ad528d8a3a717c0086626c2180286521faeb

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