chaos | 3730e9cba4a93bc985ef7cd2368ccbf5eccd4724f514b38b20e320e5553dd08d

Resubmissions

25/03/2025, 13:12

250325-qfl42aznw9 10

25/03/2025, 13:09

25/03/2025, 13:05

25/03/2025, 13:01

25/03/2025, 12:55

25/03/2025, 12:51

05/02/2025, 11:16

16/07/2024, 08:54

Analysis

max time kernel
103s
max time network
106s
platform
windows11-21h2_x64
resource
win11-20250314-en
resource tags

arch:x64arch:x86image:win11-20250314-enlocale:en-usos:windows11-21h2-x64system
submitted
25/03/2025, 13:09

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14.exe
Size

137KB
MD5

9b02b542834573f9502ca83719a73a01
SHA1

f3bc7cf16eec977772455f3fce87fed505fb18e3
SHA256

e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14
SHA512

290c7a5bfc921817d1803ddbe8dd07210301082498945bcabdb597368f92c6fc1050cefec514e6d250571cb4afd6427d8e4ab7cd15d7a46a44cb088cd4d1b031
SSDEEP

3072:Eoy7AHYqr9ACDYVbu4sijUtSWnFA22WnVaxs2gzx+IjBz2:0mr9AHVycjUgWnFAGms2gzoch

Score

10^/10

chaos defense_evasion evasion execution impact ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\Documents\andrianov.txt

Ransom Note

Your Personal Files has been Encrypted and Locked Your documents, photos, databases and other important files have been encrypted with strongest encryption and locked with unique key, generated for this computer. Private decryption key is stored on a secret Internet server and nobody can decrypt your files until you pay and obtain the private key. Caution: Removing of Blackhat will not restore access to your encrypted files. Frequently Asked Questions What happened to my files ? understanding the issue How can i get my files back ? the only way to restore your files What should i do next ? Buy decryption key Now you have the last chance to decrypt your files. 1. Buy Bitcoin (https://blockchain.info) 2. Send amount of 200 dollar to address: to 3QpLGGaeFwxtV61p1bBUpTBzPcKdtPQpNA 3. Transaction will take about 15-30 minutes to confirm. 4. When transaction is confirmed, send email to us at [email protected] Click here to restore and recovery your files

Emails

[email protected]

Wallets

3QpLGGaeFwxtV61p1bBUpTBzPcKdtPQpNA

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 2 IoCs

resource	yara_rule
behavioral20/memory/3616-1-0x00000000009B0000-0x00000000009D8000-memory.dmp	family_chaos
behavioral20/files/0x001a00000002b2ac-6.dat	family_chaos

Chaos family
chaos
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047

Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
1536	bcdedit.exe
3568	bcdedit.exe

Renames multiple (251) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Deletes backup catalog 3 TTPs 1 IoCs

Uses wbadmin.exe to inhibit system recovery.

ransomware

Command and Scripting Interpreter

T1059

File Deletion

T1070.004

Inhibit System Recovery

T1490

pid	Process
5556	wbadmin.exe

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini	svchost.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\andrianov.txt	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5388	svchost.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Drops desktop.ini file(s) 34 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-1678082226-3994841222-899489560-1000\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\OneDrive\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	svchost.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-1-5-21-1678082226-3994841222-899489560-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\wtgrct2fd.jpg"	svchost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Checks SCSI registry key(s) 3 TTPs 4 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_WDC&PROD_WDS100T2B0A\4&215468A5&0&000000	vds.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName	vds.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_QEMU&PROD_QEMU_DVD-ROM\4&215468A5&0&010000	vds.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\FriendlyName	vds.exe

Interacts with shadow copies 3 TTPs 1 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

Direct Volume Access

T1006

pid	Process
1956	vssadmin.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1678082226-3994841222-899489560-1000_Classes\Local Settings	svchost.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1004	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
5388	svchost.exe

Suspicious behavior: EnumeratesProcesses 35 IoCs

pid	Process
3616	e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14.exe
3616	e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14.exe
3616	e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14.exe
3616	e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14.exe
3616	e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14.exe
3616	e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14.exe
3616	e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14.exe
3616	e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14.exe
3616	e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14.exe
3616	e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14.exe
3616	e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14.exe
3616	e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14.exe
3616	e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14.exe
3616	e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14.exe
3616	e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14.exe
3616	e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14.exe
3616	e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14.exe
5388	svchost.exe
5388	svchost.exe
5388	svchost.exe
5388	svchost.exe
5388	svchost.exe
5388	svchost.exe
5388	svchost.exe
5388	svchost.exe
5388	svchost.exe
5388	svchost.exe
5388	svchost.exe
5388	svchost.exe
5388	svchost.exe
5388	svchost.exe
5388	svchost.exe
5388	svchost.exe
5388	svchost.exe
5388	svchost.exe

Suspicious use of AdjustPrivilegeToken 50 IoCs

description	pid	Process
Token: SeDebugPrivilege	3616	e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14.exe
Token: SeDebugPrivilege	5388	svchost.exe
Token: SeBackupPrivilege	4148	vssvc.exe
Token: SeRestorePrivilege	4148	vssvc.exe
Token: SeAuditPrivilege	4148	vssvc.exe
Token: SeIncreaseQuotaPrivilege	6092	WMIC.exe
Token: SeSecurityPrivilege	6092	WMIC.exe
Token: SeTakeOwnershipPrivilege	6092	WMIC.exe
Token: SeLoadDriverPrivilege	6092	WMIC.exe
Token: SeSystemProfilePrivilege	6092	WMIC.exe
Token: SeSystemtimePrivilege	6092	WMIC.exe
Token: SeProfSingleProcessPrivilege	6092	WMIC.exe
Token: SeIncBasePriorityPrivilege	6092	WMIC.exe
Token: SeCreatePagefilePrivilege	6092	WMIC.exe
Token: SeBackupPrivilege	6092	WMIC.exe
Token: SeRestorePrivilege	6092	WMIC.exe
Token: SeShutdownPrivilege	6092	WMIC.exe
Token: SeDebugPrivilege	6092	WMIC.exe
Token: SeSystemEnvironmentPrivilege	6092	WMIC.exe
Token: SeRemoteShutdownPrivilege	6092	WMIC.exe
Token: SeUndockPrivilege	6092	WMIC.exe
Token: SeManageVolumePrivilege	6092	WMIC.exe
Token: 33	6092	WMIC.exe
Token: 34	6092	WMIC.exe
Token: 35	6092	WMIC.exe
Token: 36	6092	WMIC.exe
Token: SeIncreaseQuotaPrivilege	6092	WMIC.exe
Token: SeSecurityPrivilege	6092	WMIC.exe
Token: SeTakeOwnershipPrivilege	6092	WMIC.exe
Token: SeLoadDriverPrivilege	6092	WMIC.exe
Token: SeSystemProfilePrivilege	6092	WMIC.exe
Token: SeSystemtimePrivilege	6092	WMIC.exe
Token: SeProfSingleProcessPrivilege	6092	WMIC.exe
Token: SeIncBasePriorityPrivilege	6092	WMIC.exe
Token: SeCreatePagefilePrivilege	6092	WMIC.exe
Token: SeBackupPrivilege	6092	WMIC.exe
Token: SeRestorePrivilege	6092	WMIC.exe
Token: SeShutdownPrivilege	6092	WMIC.exe
Token: SeDebugPrivilege	6092	WMIC.exe
Token: SeSystemEnvironmentPrivilege	6092	WMIC.exe
Token: SeRemoteShutdownPrivilege	6092	WMIC.exe
Token: SeUndockPrivilege	6092	WMIC.exe
Token: SeManageVolumePrivilege	6092	WMIC.exe
Token: 33	6092	WMIC.exe
Token: 34	6092	WMIC.exe
Token: 35	6092	WMIC.exe
Token: 36	6092	WMIC.exe
Token: SeBackupPrivilege	4076	wbengine.exe
Token: SeRestorePrivilege	4076	wbengine.exe
Token: SeSecurityPrivilege	4076	wbengine.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3616 wrote to memory of 5388	3616	e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14.exe	78
PID 3616 wrote to memory of 5388	3616	e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14.exe	78
PID 5388 wrote to memory of 1888	5388	svchost.exe	80
PID 5388 wrote to memory of 1888	5388	svchost.exe	80
PID 1888 wrote to memory of 1956	1888	cmd.exe	82
PID 1888 wrote to memory of 1956	1888	cmd.exe	82
PID 1888 wrote to memory of 6092	1888	cmd.exe	85
PID 1888 wrote to memory of 6092	1888	cmd.exe	85
PID 5388 wrote to memory of 5384	5388	svchost.exe	87
PID 5388 wrote to memory of 5384	5388	svchost.exe	87
PID 5384 wrote to memory of 1536	5384	cmd.exe	89
PID 5384 wrote to memory of 1536	5384	cmd.exe	89
PID 5384 wrote to memory of 3568	5384	cmd.exe	90
PID 5384 wrote to memory of 3568	5384	cmd.exe	90
PID 5388 wrote to memory of 1128	5388	svchost.exe	91
PID 5388 wrote to memory of 1128	5388	svchost.exe	91
PID 1128 wrote to memory of 5556	1128	cmd.exe	93
PID 1128 wrote to memory of 5556	1128	cmd.exe	93
PID 5388 wrote to memory of 1004	5388	svchost.exe	97
PID 5388 wrote to memory of 1004	5388	svchost.exe	97

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14.exe
"C:\Users\Admin\AppData\Local\Temp\e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3616
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Drops desktop.ini file(s)
  - Sets desktop wallpaper using registry
  - Modifies registry class
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5388
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1888
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:1956
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:6092
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:5384
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1536
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:3568
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1128
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:5556
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\andrianov.txt
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:1004

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4148

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4076

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:5948

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
- Checks SCSI registry key(s)
PID:5988

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Management Instrumentation

T1047

Persistence

Privilege Escalation

Defense Evasion

Direct Volume Access

T1006

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Defacement

T1491

Inhibit System Recovery

T1490

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\svchost.exe

Filesize
137KB

MD5
9b02b542834573f9502ca83719a73a01

SHA1
f3bc7cf16eec977772455f3fce87fed505fb18e3

SHA256
e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14

SHA512
290c7a5bfc921817d1803ddbe8dd07210301082498945bcabdb597368f92c6fc1050cefec514e6d250571cb4afd6427d8e4ab7cd15d7a46a44cb088cd4d1b031

Download Submit
C:\Users\Admin\Documents\andrianov.txt

Filesize
987B

MD5
8d31c8f9e4bb13c044a9825aee0cdfa3

SHA1
6ff267b0179f7ddebe46e8ba855b5e4d176a9bbb

SHA256
5aca5bd47a3fd4a211121870f0124245a87528da86b07cb1a0934566ba0349bf

SHA512
878a8b06a392000fba503bcd16766c75c53ea033746fd74da02a5bb3a91bf3b9701fb9c89a5eafc179909727c5e16ac21b293fb5de134770bf30db8ed3ae216a

Download Submit
memory/3616-0-0x00007FFBF5963000-0x00007FFBF5965000-memory.dmp

Filesize
8KB

Download
memory/3616-1-0x00000000009B0000-0x00000000009D8000-memory.dmp

Filesize
160KB

Download
memory/5388-14-0x00007FFBF5960000-0x00007FFBF6422000-memory.dmp

Filesize
10.8MB

Download
memory/5388-574-0x00007FFBF5960000-0x00007FFBF6422000-memory.dmp

Filesize
10.8MB

Download