chaos | 5404595684deb101a7d8d6a11c104dc1401151149f69cb9a60ebb223b6f7e5b2

Analysis

max time kernel
93s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 07:18

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General

Target

20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
Size

23KB
MD5

a264ca73aaced0a81a0b7fa14bc201f4
SHA1

77a1624cbc6d2d5066f7e23b42f05fd2703fb394
SHA256

5404595684deb101a7d8d6a11c104dc1401151149f69cb9a60ebb223b6f7e5b2
SHA512

d141ce0021b3352a79eb1401401f072e25fa06773ed567b9922d99967740e07a88e5d5b1daa77a61d9f8a53b51a36441c8e3c1a00a25de203ad05d82b1929ed4
SSDEEP

384:y3Mg/bqo21q5D+WVZfpKkLOjXJ/r91CCAiMbdLej:Iqo2Sy6ptOjZ/r9BAiMblej

Score

10^/10

chaos defense_evasion evasion execution impact ransomware spyware stealer

Malware Config

Extracted

Path

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

Family

chaos

Ransom Note

----> Chaos is multi language ransomware. Translate your note to any language <---- All of your files have been encrypted and stolen Your computer was infected with a ransomware virus. Your files have been encrypted and stolen 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 $150. 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: 0.00240923 BTC Bitcoin Address: bc1q5dct32xckc9352ze647cf8lsv0vjaldp9vpvk6

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 2 IoCs

resource	yara_rule
behavioral2/memory/1676-1-0x0000000000950000-0x000000000095C000-memory.dmp	family_chaos
behavioral2/files/0x000900000002342c-7.dat	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
1568	bcdedit.exe
432	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
4652	wbadmin.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	svchost.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_THIS.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
3760	svchost.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\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\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\Links\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\AccountPictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Pictures\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	F:\$RECYCLE.BIN\S-1-5-21-2392887640-1187051047-2909758433-1000\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\Windows\SendTo\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\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\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\Maintenance\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\Pictures\Saved Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\OneDrive\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\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\Administrative Tools\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\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\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	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\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
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

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
2280	vssadmin.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000_Classes\Local Settings	svchost.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1960	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3760	svchost.exe

Suspicious behavior: EnumeratesProcesses 47 IoCs

pid	Process
1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
3760	svchost.exe
3760	svchost.exe
3760	svchost.exe
3760	svchost.exe
3760	svchost.exe
3760	svchost.exe
3760	svchost.exe
3760	svchost.exe
3760	svchost.exe
3760	svchost.exe
3760	svchost.exe
3760	svchost.exe
3760	svchost.exe
3760	svchost.exe
3760	svchost.exe
3760	svchost.exe
3760	svchost.exe
3760	svchost.exe
3760	svchost.exe
3760	svchost.exe
3760	svchost.exe
3760	svchost.exe
3760	svchost.exe
3760	svchost.exe

Suspicious use of AdjustPrivilegeToken 50 IoCs

description	pid	Process
Token: SeDebugPrivilege	1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
Token: SeDebugPrivilege	3760	svchost.exe
Token: SeBackupPrivilege	4012	vssvc.exe
Token: SeRestorePrivilege	4012	vssvc.exe
Token: SeAuditPrivilege	4012	vssvc.exe
Token: SeIncreaseQuotaPrivilege	632	WMIC.exe
Token: SeSecurityPrivilege	632	WMIC.exe
Token: SeTakeOwnershipPrivilege	632	WMIC.exe
Token: SeLoadDriverPrivilege	632	WMIC.exe
Token: SeSystemProfilePrivilege	632	WMIC.exe
Token: SeSystemtimePrivilege	632	WMIC.exe
Token: SeProfSingleProcessPrivilege	632	WMIC.exe
Token: SeIncBasePriorityPrivilege	632	WMIC.exe
Token: SeCreatePagefilePrivilege	632	WMIC.exe
Token: SeBackupPrivilege	632	WMIC.exe
Token: SeRestorePrivilege	632	WMIC.exe
Token: SeShutdownPrivilege	632	WMIC.exe
Token: SeDebugPrivilege	632	WMIC.exe
Token: SeSystemEnvironmentPrivilege	632	WMIC.exe
Token: SeRemoteShutdownPrivilege	632	WMIC.exe
Token: SeUndockPrivilege	632	WMIC.exe
Token: SeManageVolumePrivilege	632	WMIC.exe
Token: 33	632	WMIC.exe
Token: 34	632	WMIC.exe
Token: 35	632	WMIC.exe
Token: 36	632	WMIC.exe
Token: SeIncreaseQuotaPrivilege	632	WMIC.exe
Token: SeSecurityPrivilege	632	WMIC.exe
Token: SeTakeOwnershipPrivilege	632	WMIC.exe
Token: SeLoadDriverPrivilege	632	WMIC.exe
Token: SeSystemProfilePrivilege	632	WMIC.exe
Token: SeSystemtimePrivilege	632	WMIC.exe
Token: SeProfSingleProcessPrivilege	632	WMIC.exe
Token: SeIncBasePriorityPrivilege	632	WMIC.exe
Token: SeCreatePagefilePrivilege	632	WMIC.exe
Token: SeBackupPrivilege	632	WMIC.exe
Token: SeRestorePrivilege	632	WMIC.exe
Token: SeShutdownPrivilege	632	WMIC.exe
Token: SeDebugPrivilege	632	WMIC.exe
Token: SeSystemEnvironmentPrivilege	632	WMIC.exe
Token: SeRemoteShutdownPrivilege	632	WMIC.exe
Token: SeUndockPrivilege	632	WMIC.exe
Token: SeManageVolumePrivilege	632	WMIC.exe
Token: 33	632	WMIC.exe
Token: 34	632	WMIC.exe
Token: 35	632	WMIC.exe
Token: 36	632	WMIC.exe
Token: SeBackupPrivilege	4572	wbengine.exe
Token: SeRestorePrivilege	4572	wbengine.exe
Token: SeSecurityPrivilege	4572	wbengine.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1676 wrote to memory of 3760	1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe	82
PID 1676 wrote to memory of 3760	1676	20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe	82
PID 3760 wrote to memory of 4084	3760	svchost.exe	89
PID 3760 wrote to memory of 4084	3760	svchost.exe	89
PID 4084 wrote to memory of 2280	4084	cmd.exe	91
PID 4084 wrote to memory of 2280	4084	cmd.exe	91
PID 4084 wrote to memory of 632	4084	cmd.exe	94
PID 4084 wrote to memory of 632	4084	cmd.exe	94
PID 3760 wrote to memory of 2064	3760	svchost.exe	95
PID 3760 wrote to memory of 2064	3760	svchost.exe	95
PID 2064 wrote to memory of 1568	2064	cmd.exe	97
PID 2064 wrote to memory of 1568	2064	cmd.exe	97
PID 2064 wrote to memory of 432	2064	cmd.exe	98
PID 2064 wrote to memory of 432	2064	cmd.exe	98
PID 3760 wrote to memory of 2844	3760	svchost.exe	99
PID 3760 wrote to memory of 2844	3760	svchost.exe	99
PID 2844 wrote to memory of 4652	2844	cmd.exe	101
PID 2844 wrote to memory of 4652	2844	cmd.exe	101
PID 3760 wrote to memory of 1960	3760	svchost.exe	105
PID 3760 wrote to memory of 1960	3760	svchost.exe	105

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\20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe
"C:\Users\Admin\AppData\Local\Temp\20240919a264ca73aaced0a81a0b7fa14bc201f4chaosdestroyerwannacry.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1676
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Drops desktop.ini file(s)
  - Modifies registry class
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3760
- - 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:4084
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:2280
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:632
- - 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:2064
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1568
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:432
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2844
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:4652
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\READ_THIS.txt
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:1960

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4012

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4572

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:4872

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
- Checks SCSI registry key(s)
PID:3148

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

Credential Access

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

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

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

Filesize
23KB

MD5
a264ca73aaced0a81a0b7fa14bc201f4

SHA1
77a1624cbc6d2d5066f7e23b42f05fd2703fb394

SHA256
5404595684deb101a7d8d6a11c104dc1401151149f69cb9a60ebb223b6f7e5b2

SHA512
d141ce0021b3352a79eb1401401f072e25fa06773ed567b9922d99967740e07a88e5d5b1daa77a61d9f8a53b51a36441c8e3c1a00a25de203ad05d82b1929ed4

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

Filesize
985B

MD5
46839c94712706c9b4bea9c0b5f89693

SHA1
af8af5265aa72bd8c30c63d7999f7f52c738b9ff

SHA256
4afb727589a35a9ee9422855723f7e8a6b95a09e72d1683c57f92b3e3e0e9ca6

SHA512
afd0bae86ab302883f83f1ab0534fb6a49d45a155e7320958387dc5a2721f854c6cd34f546931ea3b8da932b8f8bb13e0869d42b41684671cd606fb4023db382

Download Submit
memory/1676-0-0x00007FFE0C493000-0x00007FFE0C495000-memory.dmp

Filesize
8KB

Download
memory/1676-1-0x0000000000950000-0x000000000095C000-memory.dmp

Filesize
48KB

Download
memory/3760-14-0x00007FFE0C490000-0x00007FFE0CF51000-memory.dmp

Filesize
10.8MB

Download
memory/3760-469-0x00007FFE0C490000-0x00007FFE0CF51000-memory.dmp

Filesize
10.8MB

Download