43cf51ea2ac2ea60017c077d196d9719c6217548510619aa8ac18c6657163c55

Analysis

max time kernel
122s
max time network
122s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
28-04-2024 05:25

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General

Target

main.pyc
Size

892B
MD5

54e257b4d688ae955b771307697e82e5
SHA1

e6039d8fe8c333408a7f3e21cd615e6e461cebf7
SHA256

595741fee032c8449fcc813c8116faa18fa459c0c6686abe10d99baa0f973fcf
SHA512

f85dc5e893fb07e6bf100b83e297098e13c3005f903cc521f2677c9f27895c999244f910efc80a4c3dd41bf89160e8a7977d313a4ffbcc68a514f78dea0f45aa

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

Processes:

rundll32.exe

description	ioc	process
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\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
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_Classes\Local Settings	rundll32.exe
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
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	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2836 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2836 AcroRd32.exe
2836 AcroRd32.exe

pid	process
2836	AcroRd32.exe

pid	process
2836	AcroRd32.exe
2836	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2500 wrote to memory of 2684	2500	cmd.exe	rundll32.exe
PID 2500 wrote to memory of 2684	2500	cmd.exe	rundll32.exe
PID 2500 wrote to memory of 2684	2500	cmd.exe	rundll32.exe
PID 2684 wrote to memory of 2836	2684	rundll32.exe	AcroRd32.exe
PID 2684 wrote to memory of 2836	2684	rundll32.exe	AcroRd32.exe
PID 2684 wrote to memory of 2836	2684	rundll32.exe	AcroRd32.exe
PID 2684 wrote to memory of 2836	2684	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\main.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2500

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:2684

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 behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2836

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Filesize
3KB

MD5
3fec6796964409af78aef96516a29d10

SHA1
290ccee070e24934ae394de565f241f8a3668f60

SHA256
7d209ea28fd1d0b83695441cb4d872d3d26e3a984414248edc9f3516725b7af0

SHA512
48babf27e37d30ecf2acc83899cd2e603ca030a24666d8cea5881a1f20e759e4d9e711b5a9a0524e0086f571cd7905e68806146f6f069841d534bd5ee19094e9

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