58e8cf2a77663a1ff5cc36aa9e0777ce952eaa258c9b8220cadb5a53bed89724

Analysis

max time kernel
150s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
05-02-2023 11:45

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

abc.pyc
Size

6KB
MD5

15ac4e24cc9dc44f7763a2d4378a45a4
SHA1

0db70690ee85b1dda64351095462a05afefab105
SHA256

52ad89f1bd913d767fd84e819b7e6ee16a4711629620105342792a403047713e
SHA512

50002866fc6f8602213f3685ac448e3595f5e83f737f0e1251f0bdd904cece5d3b6612ab10b7355ecc7966da66f3c40dd6818588a484fbada5a3d5bae1d05b80
SSDEEP

192:gg2+dPAos8UySnUlKs1p2yjRiDsegl9o2UeooawoXLk5ebJUlo:/2+dPC8N3bigYxXLk5eCo

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 10 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_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-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

472 AcroRd32.exe
472 AcroRd32.exe
472 AcroRd32.exe

pid	process
472	AcroRd32.exe
472	AcroRd32.exe
472	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1624 wrote to memory of 1504	1624	cmd.exe	rundll32.exe
PID 1624 wrote to memory of 1504	1624	cmd.exe	rundll32.exe
PID 1624 wrote to memory of 1504	1624	cmd.exe	rundll32.exe
PID 1504 wrote to memory of 472	1504	rundll32.exe	AcroRd32.exe
PID 1504 wrote to memory of 472	1504	rundll32.exe	AcroRd32.exe
PID 1504 wrote to memory of 472	1504	rundll32.exe	AcroRd32.exe
PID 1504 wrote to memory of 472	1504	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\abc.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:1624

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\abc.pyc
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1504

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\abc.pyc"
3⤵
- Suspicious use of SetWindowsHookEx
PID:472

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/472-81-0x0000000000000000-mapping.dmp

Download
memory/472-82-0x0000000076041000-0x0000000076043000-memory.dmp

Filesize
8KB

Download
memory/1504-76-0x0000000000000000-mapping.dmp

Download
memory/1624-54-0x000007FEFBB81000-0x000007FEFBB83000-memory.dmp

Filesize
8KB

Download