fe9ef92c748a292553f5a2b93fae0154750581642ececf5671ea68013ee51066

Analysis

max time kernel
96s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
02-02-2024 16:15

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General

Target

Setup/locales/ca.pak
Size

371KB
MD5

de21c7d001b771d4d59e2acfdd67dd44
SHA1

ef5870e9cf34416edbec6aa76a6feb77b70b9acf
SHA256

78bbee9bf6c95d239418037fd4660d081ebc0f369e727e613b6b652e380e6dd0
SHA512

3276a84a4b4d90b47789a7ce6a3ae34afec187145a438fbdb7f398152b182e97ba10acda4941456ea2387c03c101bc2b1716a8950897ea3be180b3d8c073902e
SSDEEP

6144:moaCg6EDiYqdSIs3cehEYBC2l3nbh9aGHQl2SwAGwXZM0dLbpuQRBtryBocaGIlI:Hg6EO9dSIs3cehEYBC2l3nbh9aGHQl2t

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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000_Classes\Local Settings	cmd.exe
Key created	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000_Classes\Local Settings	OpenWith.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
4172	NOTEPAD.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2500	OpenWith.exe

Suspicious use of SetWindowsHookEx 23 IoCs

pid	Process
2500	OpenWith.exe
2500	OpenWith.exe
2500	OpenWith.exe
2500	OpenWith.exe
2500	OpenWith.exe
2500	OpenWith.exe
2500	OpenWith.exe
2500	OpenWith.exe
2500	OpenWith.exe
2500	OpenWith.exe
2500	OpenWith.exe
2500	OpenWith.exe
2500	OpenWith.exe
2500	OpenWith.exe
2500	OpenWith.exe
2500	OpenWith.exe
2500	OpenWith.exe
2500	OpenWith.exe
2500	OpenWith.exe
2500	OpenWith.exe
2500	OpenWith.exe
2500	OpenWith.exe
2500	OpenWith.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 4172	2500	OpenWith.exe	100
PID 2500 wrote to memory of 4172	2500	OpenWith.exe	100

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Setup\locales\ca.pak
1⤵
- Modifies registry class
PID:2412

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:2500
- C:\Windows\system32\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\Setup\locales\ca.pak
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:4172

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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