chaos | 0d9fcb8894240750cb5e4222ea78572aba6618eb5297c2069588ceb979d52d8b

Resubmissions

13-07-2024 09:54

240713-lxcvgawdmn 10

13-07-2024 09:52

240713-lv46yawdkj 10

13-07-2024 09:46

240713-lrz3tayajc 10

Analysis

max time kernel
841s
max time network
845s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
13-07-2024 09:52

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General

Target

ac7a29cb82b7b3e50d8aaa0da5e431f0b466de07dad241e5b6090cf71963e3b8.exe
Size

325KB
MD5

9a4827a78e363d84ea0e334e842ab039
SHA1

a0d222d2fd9cf90a47a134ef571232ee482a45f7
SHA256

ac7a29cb82b7b3e50d8aaa0da5e431f0b466de07dad241e5b6090cf71963e3b8
SHA512

0f20fbf72e254155f0b2403488f5d8262c98138335380f3267afed6b79b91f2c9198924853dccb5b60bc9075876a700e12fc7b8509075bdb3b13776d3514ad0c
SSDEEP

6144:9dCr9fPhxhdsVFGEeRJk8nrKfQhCd/hAxno0yu:TEhxbsVFGEeRJk8mQE7Axqu

Score

10^/10

chaos defense_evasion evasion execution impact ransomware spyware stealer

Malware Config

Extracted

Path

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

Ransom Note

TuRKey_RanSOmWarE 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 $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: 0,022 BTC Bitcoin Address: bc1qxwnqayk77nha5509swmclfzgkas6gc9t8xjj64

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 3 IoCs

resource	yara_rule
behavioral21/memory/2560-1-0x0000000000C30000-0x0000000000C88000-memory.dmp	family_chaos
behavioral21/files/0x000b00000001202f-5.dat	family_chaos
behavioral21/memory/2064-7-0x0000000000A20000-0x0000000000A78000-memory.dmp	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
708	bcdedit.exe
2636	bcdedit.exe

Renames multiple (223) 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
2076	wbadmin.exe

Drops startup file 3 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
2064	System.ini.exe

Reads user/profile data of web browsers 2 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

Drops desktop.ini file(s) 34 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Public\Pictures\Sample Pictures\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Public\Videos\Sample Videos\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	System.ini.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-1385883288-3042840365-2734249351-1000\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	System.ini.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Public\Music\Sample Music\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\Favorites\Links for United States\desktop.ini	System.ini.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	System.ini.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-1-5-21-1385883288-3042840365-2734249351-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\jfk72cmmf.jpg"	System.ini.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
2952	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
2524	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2064	System.ini.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2560	ac7a29cb82b7b3e50d8aaa0da5e431f0b466de07dad241e5b6090cf71963e3b8.exe
2560	ac7a29cb82b7b3e50d8aaa0da5e431f0b466de07dad241e5b6090cf71963e3b8.exe
2560	ac7a29cb82b7b3e50d8aaa0da5e431f0b466de07dad241e5b6090cf71963e3b8.exe
2064	System.ini.exe
2064	System.ini.exe
2064	System.ini.exe
2064	System.ini.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	2560	ac7a29cb82b7b3e50d8aaa0da5e431f0b466de07dad241e5b6090cf71963e3b8.exe
Token: SeDebugPrivilege	2064	System.ini.exe
Token: SeBackupPrivilege	2828	vssvc.exe
Token: SeRestorePrivilege	2828	vssvc.exe
Token: SeAuditPrivilege	2828	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1768	WMIC.exe
Token: SeSecurityPrivilege	1768	WMIC.exe
Token: SeTakeOwnershipPrivilege	1768	WMIC.exe
Token: SeLoadDriverPrivilege	1768	WMIC.exe
Token: SeSystemProfilePrivilege	1768	WMIC.exe
Token: SeSystemtimePrivilege	1768	WMIC.exe
Token: SeProfSingleProcessPrivilege	1768	WMIC.exe
Token: SeIncBasePriorityPrivilege	1768	WMIC.exe
Token: SeCreatePagefilePrivilege	1768	WMIC.exe
Token: SeBackupPrivilege	1768	WMIC.exe
Token: SeRestorePrivilege	1768	WMIC.exe
Token: SeShutdownPrivilege	1768	WMIC.exe
Token: SeDebugPrivilege	1768	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1768	WMIC.exe
Token: SeRemoteShutdownPrivilege	1768	WMIC.exe
Token: SeUndockPrivilege	1768	WMIC.exe
Token: SeManageVolumePrivilege	1768	WMIC.exe
Token: 33	1768	WMIC.exe
Token: 34	1768	WMIC.exe
Token: 35	1768	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1768	WMIC.exe
Token: SeSecurityPrivilege	1768	WMIC.exe
Token: SeTakeOwnershipPrivilege	1768	WMIC.exe
Token: SeLoadDriverPrivilege	1768	WMIC.exe
Token: SeSystemProfilePrivilege	1768	WMIC.exe
Token: SeSystemtimePrivilege	1768	WMIC.exe
Token: SeProfSingleProcessPrivilege	1768	WMIC.exe
Token: SeIncBasePriorityPrivilege	1768	WMIC.exe
Token: SeCreatePagefilePrivilege	1768	WMIC.exe
Token: SeBackupPrivilege	1768	WMIC.exe
Token: SeRestorePrivilege	1768	WMIC.exe
Token: SeShutdownPrivilege	1768	WMIC.exe
Token: SeDebugPrivilege	1768	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1768	WMIC.exe
Token: SeRemoteShutdownPrivilege	1768	WMIC.exe
Token: SeUndockPrivilege	1768	WMIC.exe
Token: SeManageVolumePrivilege	1768	WMIC.exe
Token: 33	1768	WMIC.exe
Token: 34	1768	WMIC.exe
Token: 35	1768	WMIC.exe
Token: SeBackupPrivilege	2388	wbengine.exe
Token: SeRestorePrivilege	2388	wbengine.exe
Token: SeSecurityPrivilege	2388	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2560 wrote to memory of 2064	2560	ac7a29cb82b7b3e50d8aaa0da5e431f0b466de07dad241e5b6090cf71963e3b8.exe	30
PID 2560 wrote to memory of 2064	2560	ac7a29cb82b7b3e50d8aaa0da5e431f0b466de07dad241e5b6090cf71963e3b8.exe	30
PID 2560 wrote to memory of 2064	2560	ac7a29cb82b7b3e50d8aaa0da5e431f0b466de07dad241e5b6090cf71963e3b8.exe	30
PID 2064 wrote to memory of 2800	2064	System.ini.exe	32
PID 2064 wrote to memory of 2800	2064	System.ini.exe	32
PID 2064 wrote to memory of 2800	2064	System.ini.exe	32
PID 2800 wrote to memory of 2952	2800	cmd.exe	34
PID 2800 wrote to memory of 2952	2800	cmd.exe	34
PID 2800 wrote to memory of 2952	2800	cmd.exe	34
PID 2800 wrote to memory of 1768	2800	cmd.exe	37
PID 2800 wrote to memory of 1768	2800	cmd.exe	37
PID 2800 wrote to memory of 1768	2800	cmd.exe	37
PID 2064 wrote to memory of 1044	2064	System.ini.exe	39
PID 2064 wrote to memory of 1044	2064	System.ini.exe	39
PID 2064 wrote to memory of 1044	2064	System.ini.exe	39
PID 1044 wrote to memory of 708	1044	cmd.exe	41
PID 1044 wrote to memory of 708	1044	cmd.exe	41
PID 1044 wrote to memory of 708	1044	cmd.exe	41
PID 1044 wrote to memory of 2636	1044	cmd.exe	42
PID 1044 wrote to memory of 2636	1044	cmd.exe	42
PID 1044 wrote to memory of 2636	1044	cmd.exe	42
PID 2064 wrote to memory of 1952	2064	System.ini.exe	43
PID 2064 wrote to memory of 1952	2064	System.ini.exe	43
PID 2064 wrote to memory of 1952	2064	System.ini.exe	43
PID 1952 wrote to memory of 2076	1952	cmd.exe	45
PID 1952 wrote to memory of 2076	1952	cmd.exe	45
PID 1952 wrote to memory of 2076	1952	cmd.exe	45
PID 2064 wrote to memory of 2524	2064	System.ini.exe	49
PID 2064 wrote to memory of 2524	2064	System.ini.exe	49
PID 2064 wrote to memory of 2524	2064	System.ini.exe	49

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\ac7a29cb82b7b3e50d8aaa0da5e431f0b466de07dad241e5b6090cf71963e3b8.exe
"C:\Users\Admin\AppData\Local\Temp\ac7a29cb82b7b3e50d8aaa0da5e431f0b466de07dad241e5b6090cf71963e3b8.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2560
- C:\Users\Admin\AppData\Roaming\System.ini.exe
  "C:\Users\Admin\AppData\Roaming\System.ini.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:2064
- - 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:2800
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:2952
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:1768
- - 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:1044
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:708
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2636
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1952
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:2076
- - 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:2524

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2828

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2388

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:1288

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:1668

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

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

C:\Users\Admin\AppData\Roaming\System.ini.exe

Filesize
325KB

MD5
9a4827a78e363d84ea0e334e842ab039

SHA1
a0d222d2fd9cf90a47a134ef571232ee482a45f7

SHA256
ac7a29cb82b7b3e50d8aaa0da5e431f0b466de07dad241e5b6090cf71963e3b8

SHA512
0f20fbf72e254155f0b2403488f5d8262c98138335380f3267afed6b79b91f2c9198924853dccb5b60bc9075876a700e12fc7b8509075bdb3b13776d3514ad0c

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

Filesize
953B

MD5
bd37069aebdf327fdb4db6f86e36af60

SHA1
cde14a2afc7e8c4ffad0cf5737536660cb118c32

SHA256
00de24d28abf0b98a3fa7486a2aa58e8ff0e32d2c5bf5b95f3a12bc80b4e478c

SHA512
9d0f53da5611124d88a19f210c0daf6f789128fc07994aa4c96346b3ca57ccaa85e3a83e10731d956431c02e63aca69f835464e3aa78846931805d2c5c4afeeb

Download Submit
memory/2064-7-0x0000000000A20000-0x0000000000A78000-memory.dmp

Filesize
352KB

Download
memory/2064-8-0x000007FEF5B00000-0x000007FEF64EC000-memory.dmp

Filesize
9.9MB

Download
memory/2064-16-0x000007FEF5B00000-0x000007FEF64EC000-memory.dmp

Filesize
9.9MB

Download
memory/2064-512-0x000007FEF5B00000-0x000007FEF64EC000-memory.dmp

Filesize
9.9MB

Download
memory/2560-0-0x000007FEF5B03000-0x000007FEF5B04000-memory.dmp

Filesize
4KB

Download
memory/2560-1-0x0000000000C30000-0x0000000000C88000-memory.dmp

Filesize
352KB

Download