chaos | 3730e9cba4a93bc985ef7cd2368ccbf5eccd4724f514b38b20e320e5553dd08d

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25/03/2025, 13:12

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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
186s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05/02/2025, 11:16

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Report Analysis Logs

General

Target
14b94844b99ac43c014ea73c3400097e3239a7307d1618e84159a741ab0e8ac3.exe
Size 87KB
Sample250205-ndjvsavrdm
SHA256 14b94844b99ac43c014ea73c3400097e3239a7307d1618e84159a741ab0e8ac3
MD5 d77f7e460e5036f65677b24ed24c2dff
SHA1 053afa00864c3c0c896e48be382436c417cabb34
SHA512 f447b9b9a60f7a6fddd137a228efc7c056b989c698c85c30e6eda7c3b3990fb7a82fe2387b8fb8ee38d21704f9924a989a2a87f1d34badf20a3c89a2b9dfe3b9
SSDEEP 1536:1o2ECd3kfHr9PZAKodFF2QRa/oDc10QxsSmCDo/PjsXMbyxFmwYSDfgCso:1oWd3kfr9P5QRaADc17xAKRjFr4Lo
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

chaos defense_evasion evasion execution impact ransomware spyware stealer

Malware Config

Extracted

Path

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

chaos

Ransom Note

----> Chaos is multi language ransomware. Translate your note to any language <---- All of your files have been encrypted Your computer was infected with a ransomware virus. Your files have been encrypted and you won't be able to decrypt them without our help.What can I do to get my files back?You can buy our special decryption software, this software will allow you to recover all of your data and remove the ransomware from your computer.The price for the software is $1,500. Payment can be made in Bitcoin only. How do I pay, where do I get Bitcoin? Purchasing Bitcoin varies from country to country, you are best advised to do a quick google search yourself to find out how to buy Bitcoin. Many of our customers have reported these sites to be fast and reliable: Coinmama - hxxps://www.coinmama.com Bitpanda - hxxps://www.bitpanda.com Payment informationAmount: 0.1473766 BTC Bitcoin Address: bc1qlnzcep4l4ac0ttdrq7awxev9ehu465f2vpt9x0

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 3 IoCs

resource	yara_rule
behavioral19/memory/1364-1-0x0000000000A90000-0x0000000000AAC000-memory.dmp	family_chaos
behavioral19/files/0x00090000000120d6-5.dat	family_chaos
behavioral19/memory/1528-7-0x0000000000800000-0x000000000081C000-memory.dmp	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
2900	bcdedit.exe
3016	bcdedit.exe

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
1520	wbadmin.exe

Drops startup file 3 IoCs

description	ioc	Process
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\read_it.txt	svchost.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1528	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\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\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\Accessories\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Links\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\Start Menu\Programs\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\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\Sample Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-3063565911-2056067323-3330884624-1000\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Documents\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	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\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\Admin\Contacts\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\Links for United States\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\Public\Videos\Sample Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\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\SendTo\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\Links\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\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\Sample Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Saved Games\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-1-5-21-3063565911-2056067323-3330884624-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4fyae1uyg.jpg"	svchost.exe

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

System Information Discovery
T1082

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
1612	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1316	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1528	svchost.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1364	14b94844b99ac43c014ea73c3400097e3239a7307d1618e84159a741ab0e8ac3.exe
1364	14b94844b99ac43c014ea73c3400097e3239a7307d1618e84159a741ab0e8ac3.exe
1528	svchost.exe
1528	svchost.exe
1528	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	1364	14b94844b99ac43c014ea73c3400097e3239a7307d1618e84159a741ab0e8ac3.exe
Token: SeDebugPrivilege	1528	svchost.exe
Token: SeBackupPrivilege	1776	vssvc.exe
Token: SeRestorePrivilege	1776	vssvc.exe
Token: SeAuditPrivilege	1776	vssvc.exe
Token: SeIncreaseQuotaPrivilege	2852	WMIC.exe
Token: SeSecurityPrivilege	2852	WMIC.exe
Token: SeTakeOwnershipPrivilege	2852	WMIC.exe
Token: SeLoadDriverPrivilege	2852	WMIC.exe
Token: SeSystemProfilePrivilege	2852	WMIC.exe
Token: SeSystemtimePrivilege	2852	WMIC.exe
Token: SeProfSingleProcessPrivilege	2852	WMIC.exe
Token: SeIncBasePriorityPrivilege	2852	WMIC.exe
Token: SeCreatePagefilePrivilege	2852	WMIC.exe
Token: SeBackupPrivilege	2852	WMIC.exe
Token: SeRestorePrivilege	2852	WMIC.exe
Token: SeShutdownPrivilege	2852	WMIC.exe
Token: SeDebugPrivilege	2852	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2852	WMIC.exe
Token: SeRemoteShutdownPrivilege	2852	WMIC.exe
Token: SeUndockPrivilege	2852	WMIC.exe
Token: SeManageVolumePrivilege	2852	WMIC.exe
Token: 33	2852	WMIC.exe
Token: 34	2852	WMIC.exe
Token: 35	2852	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2852	WMIC.exe
Token: SeSecurityPrivilege	2852	WMIC.exe
Token: SeTakeOwnershipPrivilege	2852	WMIC.exe
Token: SeLoadDriverPrivilege	2852	WMIC.exe
Token: SeSystemProfilePrivilege	2852	WMIC.exe
Token: SeSystemtimePrivilege	2852	WMIC.exe
Token: SeProfSingleProcessPrivilege	2852	WMIC.exe
Token: SeIncBasePriorityPrivilege	2852	WMIC.exe
Token: SeCreatePagefilePrivilege	2852	WMIC.exe
Token: SeBackupPrivilege	2852	WMIC.exe
Token: SeRestorePrivilege	2852	WMIC.exe
Token: SeShutdownPrivilege	2852	WMIC.exe
Token: SeDebugPrivilege	2852	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2852	WMIC.exe
Token: SeRemoteShutdownPrivilege	2852	WMIC.exe
Token: SeUndockPrivilege	2852	WMIC.exe
Token: SeManageVolumePrivilege	2852	WMIC.exe
Token: 33	2852	WMIC.exe
Token: 34	2852	WMIC.exe
Token: 35	2852	WMIC.exe
Token: SeBackupPrivilege	440	wbengine.exe
Token: SeRestorePrivilege	440	wbengine.exe
Token: SeSecurityPrivilege	440	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1364 wrote to memory of 1528	1364	14b94844b99ac43c014ea73c3400097e3239a7307d1618e84159a741ab0e8ac3.exe	28
PID 1364 wrote to memory of 1528	1364	14b94844b99ac43c014ea73c3400097e3239a7307d1618e84159a741ab0e8ac3.exe	28
PID 1364 wrote to memory of 1528	1364	14b94844b99ac43c014ea73c3400097e3239a7307d1618e84159a741ab0e8ac3.exe	28
PID 1528 wrote to memory of 2576	1528	svchost.exe	30
PID 1528 wrote to memory of 2576	1528	svchost.exe	30
PID 1528 wrote to memory of 2576	1528	svchost.exe	30
PID 2576 wrote to memory of 1612	2576	cmd.exe	32
PID 2576 wrote to memory of 1612	2576	cmd.exe	32
PID 2576 wrote to memory of 1612	2576	cmd.exe	32
PID 2576 wrote to memory of 2852	2576	cmd.exe	35
PID 2576 wrote to memory of 2852	2576	cmd.exe	35
PID 2576 wrote to memory of 2852	2576	cmd.exe	35
PID 1528 wrote to memory of 3012	1528	svchost.exe	37
PID 1528 wrote to memory of 3012	1528	svchost.exe	37
PID 1528 wrote to memory of 3012	1528	svchost.exe	37
PID 3012 wrote to memory of 2900	3012	cmd.exe	39
PID 3012 wrote to memory of 2900	3012	cmd.exe	39
PID 3012 wrote to memory of 2900	3012	cmd.exe	39
PID 3012 wrote to memory of 3016	3012	cmd.exe	40
PID 3012 wrote to memory of 3016	3012	cmd.exe	40
PID 3012 wrote to memory of 3016	3012	cmd.exe	40
PID 1528 wrote to memory of 2884	1528	svchost.exe	41
PID 1528 wrote to memory of 2884	1528	svchost.exe	41
PID 1528 wrote to memory of 2884	1528	svchost.exe	41
PID 2884 wrote to memory of 1520	2884	cmd.exe	43
PID 2884 wrote to memory of 1520	2884	cmd.exe	43
PID 2884 wrote to memory of 1520	2884	cmd.exe	43
PID 1528 wrote to memory of 1316	1528	svchost.exe	47
PID 1528 wrote to memory of 1316	1528	svchost.exe	47
PID 1528 wrote to memory of 1316	1528	svchost.exe	47

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\14b94844b99ac43c014ea73c3400097e3239a7307d1618e84159a741ab0e8ac3.exe
C:\Users\Admin\AppData\Local\Temp\14b94844b99ac43c014ea73c3400097e3239a7307d1618e84159a741ab0e8ac3.exe dsrm -subtree -noprompt -c user"http://+:443"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1364
- 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
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1528
- - 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:2576
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:1612
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:2852
- - 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:3012
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2900
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:3016
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2884
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:1520
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:1316

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1776

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:440

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:1396

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:1960

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

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

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Downloads

svchost.exe

Path C:\Users\Admin\AppData\Roaming\svchost.exe
Size 87KB
SHA256 14b94844b99ac43c014ea73c3400097e3239a7307d1618e84159a741ab0e8ac3
MD5 d77f7e460e5036f65677b24ed24c2dff
SHA1 053afa00864c3c0c896e48be382436c417cabb34
SHA512 f447b9b9a60f7a6fddd137a228efc7c056b989c698c85c30e6eda7c3b3990fb7a82fe2387b8fb8ee38d21704f9924a989a2a87f1d34badf20a3c89a2b9dfe3b9
SSDEEP 1536:1o2ECd3kfHr9PZAKodFF2QRa/oDc10QxsSmCDo/PjsXMbyxFmwYSDfgCso:1oWd3kfr9P5QRaADc17xAKRjFr4Lo
MD5 SHA1 SHA512 SSDEEP

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read_it.txt

Path C:\Users\Admin\Documents\read_it.txt
Size 964B
SHA256 7d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
MD5 4217b8b83ce3c3f70029a056546f8fd0
SHA1 487cdb5733d073a0427418888e8f7070fe782a03
SHA512 2a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740
MD5 SHA1 SHA512

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memory/1364-0-0x000007FEF5973000-0x000007FEF5974000-memory.dmp

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memory/1364-1-0x0000000000A90000-0x0000000000AAC000-memory.dmp

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memory/1528-7-0x0000000000800000-0x000000000081C000-memory.dmp

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memory/1528-8-0x000007FEF5970000-0x000007FEF635C000-memory.dmp

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memory/1528-15-0x000007FEF5970000-0x000007FEF635C000-memory.dmp

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memory/1528-489-0x000007FEF5970000-0x000007FEF635C000-memory.dmp

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