7bc04e93e35f7f41b9aaf40d78e7bef44ef6aefb738f20812eed1c59640eb7a5

Resubmissions

02/08/2024, 16:29

240802-tzbzys1ejp 7

Analysis

max time kernel
23s
max time network
18s
platform
windows10-2004_x64
resource
win10v2004-20240802-de
resource tags

arch:x64arch:x86image:win10v2004-20240802-delocale:de-deos:windows10-2004-x64systemwindows
submitted
02/08/2024, 16:29

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General

Target

dauth.pyc
Size

8KB
MD5

37243c13c1776a2ff70e615de9421dc0
SHA1

fa6a6cb92dd614bdf53fdf46a0e8baeffeba8696
SHA256

176663533861af125b5173a076d960cbf9856835770360c4a2caf7edb70fbe15
SHA512

d938399e7ee0c5d2962a420c40a9c2e00220503322d226518654f313e65841434e45da5ede3daa864d68c3f82e8b9fcb4df024f45f56b659d4342bb053ada752
SSDEEP

192:cVstv5M0UQFqCiDY0+q7IKQMW9vsJbWEc:AEheZU7KQ9vsJbI

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 12 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000_Classes\Local Settings	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000_Classes\pyc_auto_file\shell	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000_Classes\pyc_auto_file\shell\edit\command	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000_Classes\pyc_auto_file\shell\open	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000_Classes\pyc_auto_file\shell\open\command	OpenWith.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000_Classes\pyc_auto_file\shell\open\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000_Classes\Local Settings	cmd.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000_Classes\pyc_auto_file	OpenWith.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000_Classes\.pyc\ = "pyc_auto_file"	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000_Classes\pyc_auto_file\shell\edit	OpenWith.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000_Classes\pyc_auto_file\shell\edit\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000_Classes\.pyc	OpenWith.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
3524	NOTEPAD.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
852	OpenWith.exe

Suspicious use of SetWindowsHookEx 37 IoCs

pid	Process
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe
852	OpenWith.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 852 wrote to memory of 3524	852	OpenWith.exe	83
PID 852 wrote to memory of 3524	852	OpenWith.exe	83

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\dauth.pyc
1⤵
- Modifies registry class
PID:3680

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:852
- C:\Windows\system32\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\dauth.pyc
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:3524

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

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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