chaos | 8cafe2829a80bcc87175685e04d9297c8403453d274a2be2c90d764f0c88991d

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16-10-2024 12:29

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General

Target

2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe
Size

23KB
MD5

7c556a045999ea1ca4f00d5b9b886b4c
SHA1

e99a8deb643a2fb835a51664d384c1d9677e7698
SHA256

8cafe2829a80bcc87175685e04d9297c8403453d274a2be2c90d764f0c88991d
SHA512

b9e142a7a7524febf3f919b28f3b150a0fcff1b5f5948accbe84ceb89a3cbccd130057b4806d0c2b38cdee5803fb189e2200ff29cc9f9954132787c8a1c0b8dd
SSDEEP

384:53Mg/bqo2DnQyvyHpfitobnJOr91CZIBA0eb:rqo2zlvKppJOr9iIBneb

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

All of your files have been stolen and encrypted. in a nutshell you're Hacked You can try whatever you wanna try but don't modify the files, they'll be damaged and impossible to decrypt. it's nothing personal, it's all about money. have a great day. Payment information Non payment will result in your data being published. YOU HAVE 7 DAYS, AFTER 3 DAYS THE MONEY DOUBLES. Bitcoin Address: bc1qpn32q8a3jykzpfnrv6crqulk7wguaryhxzadqa You must contact us using Tox messenger, download it here> https://tox.chat/download.html. Invite us on Tox, Our Tox ID : EEC1A34EA55C1DBC63D8BCC4779D93BB64FC9036C82210467DEB1948A3ABC2248CE1CAB7A181 You need contact us and decrypt one file for free on TOX messenger with your personal DECRYPTION ID 10212

URLs

https://tox.chat/download.html

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/3060-1-0x00000000013B0000-0x00000000013BC000-memory.dmp	family_chaos
behavioral1/files/0x0007000000012116-5.dat	family_chaos
behavioral1/memory/2320-8-0x0000000000B80000-0x0000000000B8C000-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
1884	bcdedit.exe
1132	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
1092	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\read_it.txt	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2320	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\Downloads\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\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\Public\Desktop\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\Public\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\Sample Music\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\Contacts\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Pictures\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\Libraries\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\Public\Pictures\Sample Pictures\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-2872745919-2748461613-2989606286-1000\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\Start Menu\Programs\Maintenance\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Videos\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 for United States\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\System Tools\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

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
2148	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1684	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2320	svchost.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
3060	2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe
3060	2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe
3060	2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe
2320	svchost.exe
2320	svchost.exe
2320	svchost.exe
2320	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	3060	2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe
Token: SeDebugPrivilege	2320	svchost.exe
Token: SeBackupPrivilege	2504	vssvc.exe
Token: SeRestorePrivilege	2504	vssvc.exe
Token: SeAuditPrivilege	2504	vssvc.exe
Token: SeIncreaseQuotaPrivilege	2164	WMIC.exe
Token: SeSecurityPrivilege	2164	WMIC.exe
Token: SeTakeOwnershipPrivilege	2164	WMIC.exe
Token: SeLoadDriverPrivilege	2164	WMIC.exe
Token: SeSystemProfilePrivilege	2164	WMIC.exe
Token: SeSystemtimePrivilege	2164	WMIC.exe
Token: SeProfSingleProcessPrivilege	2164	WMIC.exe
Token: SeIncBasePriorityPrivilege	2164	WMIC.exe
Token: SeCreatePagefilePrivilege	2164	WMIC.exe
Token: SeBackupPrivilege	2164	WMIC.exe
Token: SeRestorePrivilege	2164	WMIC.exe
Token: SeShutdownPrivilege	2164	WMIC.exe
Token: SeDebugPrivilege	2164	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2164	WMIC.exe
Token: SeRemoteShutdownPrivilege	2164	WMIC.exe
Token: SeUndockPrivilege	2164	WMIC.exe
Token: SeManageVolumePrivilege	2164	WMIC.exe
Token: 33	2164	WMIC.exe
Token: 34	2164	WMIC.exe
Token: 35	2164	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2164	WMIC.exe
Token: SeSecurityPrivilege	2164	WMIC.exe
Token: SeTakeOwnershipPrivilege	2164	WMIC.exe
Token: SeLoadDriverPrivilege	2164	WMIC.exe
Token: SeSystemProfilePrivilege	2164	WMIC.exe
Token: SeSystemtimePrivilege	2164	WMIC.exe
Token: SeProfSingleProcessPrivilege	2164	WMIC.exe
Token: SeIncBasePriorityPrivilege	2164	WMIC.exe
Token: SeCreatePagefilePrivilege	2164	WMIC.exe
Token: SeBackupPrivilege	2164	WMIC.exe
Token: SeRestorePrivilege	2164	WMIC.exe
Token: SeShutdownPrivilege	2164	WMIC.exe
Token: SeDebugPrivilege	2164	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2164	WMIC.exe
Token: SeRemoteShutdownPrivilege	2164	WMIC.exe
Token: SeUndockPrivilege	2164	WMIC.exe
Token: SeManageVolumePrivilege	2164	WMIC.exe
Token: 33	2164	WMIC.exe
Token: 34	2164	WMIC.exe
Token: 35	2164	WMIC.exe
Token: SeBackupPrivilege	2036	wbengine.exe
Token: SeRestorePrivilege	2036	wbengine.exe
Token: SeSecurityPrivilege	2036	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 2320	3060	2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe	30
PID 3060 wrote to memory of 2320	3060	2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe	30
PID 3060 wrote to memory of 2320	3060	2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe	30
PID 2320 wrote to memory of 2580	2320	svchost.exe	32
PID 2320 wrote to memory of 2580	2320	svchost.exe	32
PID 2320 wrote to memory of 2580	2320	svchost.exe	32
PID 2580 wrote to memory of 2148	2580	cmd.exe	34
PID 2580 wrote to memory of 2148	2580	cmd.exe	34
PID 2580 wrote to memory of 2148	2580	cmd.exe	34
PID 2580 wrote to memory of 2164	2580	cmd.exe	37
PID 2580 wrote to memory of 2164	2580	cmd.exe	37
PID 2580 wrote to memory of 2164	2580	cmd.exe	37
PID 2320 wrote to memory of 1716	2320	svchost.exe	39
PID 2320 wrote to memory of 1716	2320	svchost.exe	39
PID 2320 wrote to memory of 1716	2320	svchost.exe	39
PID 1716 wrote to memory of 1884	1716	cmd.exe	41
PID 1716 wrote to memory of 1884	1716	cmd.exe	41
PID 1716 wrote to memory of 1884	1716	cmd.exe	41
PID 1716 wrote to memory of 1132	1716	cmd.exe	42
PID 1716 wrote to memory of 1132	1716	cmd.exe	42
PID 1716 wrote to memory of 1132	1716	cmd.exe	42
PID 2320 wrote to memory of 1392	2320	svchost.exe	43
PID 2320 wrote to memory of 1392	2320	svchost.exe	43
PID 2320 wrote to memory of 1392	2320	svchost.exe	43
PID 1392 wrote to memory of 1092	1392	cmd.exe	45
PID 1392 wrote to memory of 1092	1392	cmd.exe	45
PID 1392 wrote to memory of 1092	1392	cmd.exe	45
PID 2320 wrote to memory of 1684	2320	svchost.exe	49
PID 2320 wrote to memory of 1684	2320	svchost.exe	49
PID 2320 wrote to memory of 1684	2320	svchost.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\2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3060
- 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)
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2320
- - 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:2580
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:2148
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:2164
- - 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:1716
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1884
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1132
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1392
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:1092
- - 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:1684

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2504

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2036

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:616

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:1208

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

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

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

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

Filesize
23KB

MD5
7c556a045999ea1ca4f00d5b9b886b4c

SHA1
e99a8deb643a2fb835a51664d384c1d9677e7698

SHA256
8cafe2829a80bcc87175685e04d9297c8403453d274a2be2c90d764f0c88991d

SHA512
b9e142a7a7524febf3f919b28f3b150a0fcff1b5f5948accbe84ceb89a3cbccd130057b4806d0c2b38cdee5803fb189e2200ff29cc9f9954132787c8a1c0b8dd

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

Filesize
755B

MD5
ab89c3aa2151781f57352fd2d7d8b73e

SHA1
90be8d872e6a7c36e2ffd4a51bece1727506ef31

SHA256
079d6eb4aed2f7d634e9f8efaea827ff221f0f03bdd72674647c58b509d15ecb

SHA512
4edeb4583ba91c63bf84e733f59eed9158fa7ede0b65d478ffe71d2c8bbc56cee964188e5dd1b98f8b4759d86aa6ee6e709a6aa364f92ce5da04b0785e38e3d3

Download Submit
memory/2320-7-0x000007FEF4FE3000-0x000007FEF4FE4000-memory.dmp

Filesize
4KB

Download
memory/2320-8-0x0000000000B80000-0x0000000000B8C000-memory.dmp

Filesize
48KB

Download
memory/2320-28-0x000007FEF4FE0000-0x000007FEF59CC000-memory.dmp

Filesize
9.9MB

Download
memory/2320-469-0x000007FEF4FE3000-0x000007FEF4FE4000-memory.dmp

Filesize
4KB

Download
memory/2320-470-0x000007FEF4FE0000-0x000007FEF59CC000-memory.dmp

Filesize
9.9MB

Download
memory/3060-0-0x000007FEF59D3000-0x000007FEF59D4000-memory.dmp

Filesize
4KB

Download
memory/3060-1-0x00000000013B0000-0x00000000013BC000-memory.dmp

Filesize
48KB

Download