15b8ea286ec25a55cfba25409a30533ce8026ba440eff6234b121f5b1fb37adb

Analysis

max time kernel
135s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
27/05/2023, 18:46

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

dsa.rar
Size

986KB
MD5

e6a7c255ec041a8ddecf90a2ac5d1b38
SHA1

46f5025bf184654b34cfe1a3ebfdf07fba41fbe4
SHA256

15b8ea286ec25a55cfba25409a30533ce8026ba440eff6234b121f5b1fb37adb
SHA512

54ab7390e4fd9e79259744fdce733e686306b27f14b2acd44909b4be954ce91bdb2b782233f16a591de29116185edcd01c85f5e1c4802fde7ed7b05d7f1bf3b4
SSDEEP

24576:c4II3ayj2FZi73r4IIRF8gDiNwSH2RLuYiqmNlA0oVM0:cuayj2FG3rLgD6h+utFlA0IM0

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 16 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000_Classes\rar_auto_file\shell\edit	OpenWith.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000_Classes\rar_auto_file\shell\edit\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	OpenWith.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000_Classes\rar_auto_file\shell\open\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000_Classes\rar_auto_file\shell\edit\command	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000_Classes\Local Settings	OpenWith.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000_Classes\䲑边둃쥀畿ȁ\ = "rar_auto_file"	OpenWith.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000_Classes\ｾ콀耀\ = "rar_auto_file"	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000_Classes\.rar	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000_Classes\rar_auto_file\shell\open	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000_Classes\rar_auto_file\shell\open\command	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000_Classes\䲑边둃쥀畿ȁ	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000_Classes\ｾ콀耀	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000_Classes\rar_auto_file\shell	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000_Classes\Local Settings	cmd.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000_Classes\rar_auto_file	OpenWith.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000_Classes\.rar\ = "rar_auto_file"	OpenWith.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1968	NOTEPAD.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2164	OpenWith.exe

Suspicious use of SetWindowsHookEx 19 IoCs

pid	Process
2164	OpenWith.exe
2164	OpenWith.exe
2164	OpenWith.exe
2164	OpenWith.exe
2164	OpenWith.exe
2164	OpenWith.exe
2164	OpenWith.exe
2164	OpenWith.exe
2164	OpenWith.exe
2164	OpenWith.exe
2164	OpenWith.exe
2164	OpenWith.exe
2164	OpenWith.exe
2164	OpenWith.exe
2164	OpenWith.exe
2164	OpenWith.exe
2164	OpenWith.exe
2164	OpenWith.exe
2164	OpenWith.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2164 wrote to memory of 1968	2164	OpenWith.exe	87
PID 2164 wrote to memory of 1968	2164	OpenWith.exe	87

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\dsa.rar
1⤵
- Modifies registry class
PID:4324

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:2164
- C:\Windows\system32\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\dsa.rar
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:1968

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

Windows 7 deprecation

Loading Replay Monitor...