44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a

Analysis

max time kernel
21s
max time network
23s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
17-03-2023 17:22

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

persisted_first_party_sets.json
Size

2B
MD5

99914b932bd37a50b983c5e7c90ae93b
SHA1

bf21a9e8fbc5a3846fb05b4fa0859e0917b2202f
SHA256

44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a
SHA512

27c74670adb75075fad058d5ceaf7b20c4e7786c83bae8a32f626f9782af34c9a33c2046ef60fd2a7878d378e29fec851806bbd9a67878f3a9f1cda4830763fd

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 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings	cmd.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
4756	NOTEPAD.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4344	OpenWith.exe

Suspicious use of SetWindowsHookEx 17 IoCs

pid	Process
4344	OpenWith.exe
4344	OpenWith.exe
4344	OpenWith.exe
4344	OpenWith.exe
4344	OpenWith.exe
4344	OpenWith.exe
4344	OpenWith.exe
4344	OpenWith.exe
4344	OpenWith.exe
4344	OpenWith.exe
4344	OpenWith.exe
4344	OpenWith.exe
4344	OpenWith.exe
4344	OpenWith.exe
4344	OpenWith.exe
4344	OpenWith.exe
4344	OpenWith.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4344 wrote to memory of 4756	4344	OpenWith.exe	86
PID 4344 wrote to memory of 4756	4344	OpenWith.exe	86

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\persisted_first_party_sets.json
1⤵
- Modifies registry class
PID:5060

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4344
- C:\Windows\system32\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\persisted_first_party_sets.json
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:4756

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads