c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

Analysis

max time kernel
74s
max time network
81s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
13-02-2024 13:45

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General

Target

authroot.stl
Size

171KB
MD5

9c0c641c06238516f27941aa1166d427
SHA1

64cd549fb8cf014fcd9312aa7a5b023847b6c977
SHA256

4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f
SHA512

936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06
SSDEEP

1536:+AuJ+lCUs0RvWqgCyPW5BXNWdm1wpyru2/3EwjYoz0VDTrubmt6mJp:+9J+q0RuXCyfdmAyru2/RAKtgp

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 2 IoCs

Processes:

cmd.exeOpenWith.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000_Classes\Local Settings	cmd.exe
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000_Classes\Local Settings	OpenWith.exe

Opens file in notepad (likely ransom note) 1 IoCs
ransomware

Processes:

NOTEPAD.EXE

pid process

4536 NOTEPAD.EXE
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

OpenWith.exe

pid process

4112 OpenWith.exe

pid	process
4536	NOTEPAD.EXE

Suspicious use of SetWindowsHookEx 33 IoCs

Processes:

OpenWith.exe

pid	process
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe
4112	OpenWith.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

OpenWith.exe

description	pid	process	target process
PID 4112 wrote to memory of 4536	4112	OpenWith.exe	NOTEPAD.EXE
PID 4112 wrote to memory of 4536	4112	OpenWith.exe	NOTEPAD.EXE

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\authroot.stl
1⤵
- Modifies registry class
PID:4980

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:4112

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\authroot.stl
2⤵
- Opens file in notepad (likely ransom note)
PID:4536

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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