58e8cf2a77663a1ff5cc36aa9e0777ce952eaa258c9b8220cadb5a53bed89724

Analysis

max time kernel
151s
max time network
45s
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

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General

Target

collections/abc.pyc
Size

218B
MD5

a17254bb48980ade90f84d569e0cbc92
SHA1

530e5fcd010cca814c37a32db604bc4efbf0f2e7
SHA256

16ba4900c8cc21b1c20ecf6833a88c43dacfae9b47e8f4354859a3ecaa8585a4
SHA512

49c85f1ab7ca5a8b1245b16622d6c897abc096a6493931dd40fdc5b6c1137f7ebfa14999899e94e8a42b473b855ab3c3c23f3d08a6c4b9cd5971a090caea8f6b

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-1-5-21-999675638-2867687379-27515722-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_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-1-5-21-999675638-2867687379-27515722-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\pyc_auto_file\shell	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

960 AcroRd32.exe
960 AcroRd32.exe
960 AcroRd32.exe

pid	process
960	AcroRd32.exe
960	AcroRd32.exe
960	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 368 wrote to memory of 852	368	cmd.exe	rundll32.exe
PID 368 wrote to memory of 852	368	cmd.exe	rundll32.exe
PID 368 wrote to memory of 852	368	cmd.exe	rundll32.exe
PID 852 wrote to memory of 960	852	rundll32.exe	AcroRd32.exe
PID 852 wrote to memory of 960	852	rundll32.exe	AcroRd32.exe
PID 852 wrote to memory of 960	852	rundll32.exe	AcroRd32.exe
PID 852 wrote to memory of 960	852	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\collections\abc.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:368

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\collections\abc.pyc
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:852

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\collections\abc.pyc"
3⤵
- Suspicious use of SetWindowsHookEx
PID:960

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

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Downloads

memory/368-54-0x000007FEFB9F1000-0x000007FEFB9F3000-memory.dmp

Filesize
8KB

Download
memory/852-76-0x0000000000000000-mapping.dmp

Download
memory/960-81-0x0000000000000000-mapping.dmp

Download
memory/960-82-0x0000000075E81000-0x0000000075E83000-memory.dmp

Filesize
8KB

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