88069993bf5ab8962e2b844ee58659a1ec59c9662e4e2bc87947fb08abc54dc1

Analysis

max time kernel
36s
max time network
18s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
02-03-2024 21:14

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General

Target

main.pyc
Size

27KB
MD5

41f7c767ec1ec7826254edd468c46341
SHA1

0f8c08ffbc4e4055510c5ff49182444e9f3b386c
SHA256

53f793e722a296f36a0698e5a2c50858db5f034c6ad3e50b0d2935a7dfcbe0ca
SHA512

9d3ed1b2cfde4cd57586d035e02066407312467411ec7f13fea2dfdd31596c928582a2aa2a44bc684edbfacf02701bdceb85466d83494846d45b0c38a0443b71
SSDEEP

768:nFXTWQLa1soRhsojXN6H517YcKgir+XXZ:nhRLa1s/FH7Di6Xp

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-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\pyc_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2992	AcroRd32.exe
2992	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2164 wrote to memory of 2820	2164	cmd.exe	29
PID 2164 wrote to memory of 2820	2164	cmd.exe	29
PID 2164 wrote to memory of 2820	2164	cmd.exe	29
PID 2820 wrote to memory of 2992	2820	rundll32.exe	30
PID 2820 wrote to memory of 2992	2820	rundll32.exe	30
PID 2820 wrote to memory of 2992	2820	rundll32.exe	30
PID 2820 wrote to memory of 2992	2820	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\main.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2164
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\main.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2820
- - 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\main.pyc"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2992

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
5d525daab0847560824a9f34f3154c8f

SHA1
200eb40230f0179abf9c384f852e51d9cfb24895

SHA256
f779b8c7a649725592cdb1d9637e29beae4892848e56649b264df773ac255683

SHA512
42b231299d033ea710f50b4c6a07fd5c2c00aeb521dac7f4341632ee22cab0b2333cef92cc61b379bbf9ca5abd690d44473b55cc7da6b36f1ac834cca5d1530c

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