chaos | ff231952158f7314a3e73e46b92843e98ceff8d396092873d02eb98d0705da49

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
18/10/2024, 18:29

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General

Target

2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe
Size

23KB
MD5

796e7bcc691f6c21d235ae0c301b1081
SHA1

7ef3bf6e556cbe7261abe797a0a3bb588cd09067
SHA256

ff231952158f7314a3e73e46b92843e98ceff8d396092873d02eb98d0705da49
SHA512

e5e7848208ed1377de2af39aeedf1e40a684de52699faa0c4445f66037f7c7ee884d96fb2d159f7432dbb2794a651c0e9375e7bb6152c68a423b14c631d245eb
SSDEEP

384:+3Mg/bqo2Y5FOieDopGSkobJJ3r91CvpIBVjqe0:8qo2+FOBopjH3r9KIB4e0

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 Or contact us via email on [email protected] You need to contact us and decrypt one file for free on TOX messenger with your personal DECRYPTION ID 102121515

Emails

[email protected]

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/2752-7-0x0000000000D30000-0x0000000000D3C000-memory.dmp	family_chaos
behavioral1/files/0x000a000000012286-6.dat	family_chaos
behavioral1/memory/2292-1-0x0000000000D60000-0x0000000000D6C000-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
2656	bcdedit.exe
1092	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
968	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
2752	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\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\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\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	F:\$RECYCLE.BIN\S-1-5-21-1506706701-1246725540-2219210854-1000\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Links\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\Internet Explorer\Quick Launch\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\Accessories\System Tools\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\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\Start Menu\Programs\Maintenance\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\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\Start Menu\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\Windows\Recent\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\Accessories\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\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\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\AppData\Roaming\Microsoft\Windows\Libraries\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
768	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1868	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2752	svchost.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2292	2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe
2292	2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe
2292	2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe
2752	svchost.exe
2752	svchost.exe
2752	svchost.exe
2752	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	2292	2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe
Token: SeDebugPrivilege	2752	svchost.exe
Token: SeBackupPrivilege	1696	vssvc.exe
Token: SeRestorePrivilege	1696	vssvc.exe
Token: SeAuditPrivilege	1696	vssvc.exe
Token: SeIncreaseQuotaPrivilege	2184	WMIC.exe
Token: SeSecurityPrivilege	2184	WMIC.exe
Token: SeTakeOwnershipPrivilege	2184	WMIC.exe
Token: SeLoadDriverPrivilege	2184	WMIC.exe
Token: SeSystemProfilePrivilege	2184	WMIC.exe
Token: SeSystemtimePrivilege	2184	WMIC.exe
Token: SeProfSingleProcessPrivilege	2184	WMIC.exe
Token: SeIncBasePriorityPrivilege	2184	WMIC.exe
Token: SeCreatePagefilePrivilege	2184	WMIC.exe
Token: SeBackupPrivilege	2184	WMIC.exe
Token: SeRestorePrivilege	2184	WMIC.exe
Token: SeShutdownPrivilege	2184	WMIC.exe
Token: SeDebugPrivilege	2184	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2184	WMIC.exe
Token: SeRemoteShutdownPrivilege	2184	WMIC.exe
Token: SeUndockPrivilege	2184	WMIC.exe
Token: SeManageVolumePrivilege	2184	WMIC.exe
Token: 33	2184	WMIC.exe
Token: 34	2184	WMIC.exe
Token: 35	2184	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2184	WMIC.exe
Token: SeSecurityPrivilege	2184	WMIC.exe
Token: SeTakeOwnershipPrivilege	2184	WMIC.exe
Token: SeLoadDriverPrivilege	2184	WMIC.exe
Token: SeSystemProfilePrivilege	2184	WMIC.exe
Token: SeSystemtimePrivilege	2184	WMIC.exe
Token: SeProfSingleProcessPrivilege	2184	WMIC.exe
Token: SeIncBasePriorityPrivilege	2184	WMIC.exe
Token: SeCreatePagefilePrivilege	2184	WMIC.exe
Token: SeBackupPrivilege	2184	WMIC.exe
Token: SeRestorePrivilege	2184	WMIC.exe
Token: SeShutdownPrivilege	2184	WMIC.exe
Token: SeDebugPrivilege	2184	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2184	WMIC.exe
Token: SeRemoteShutdownPrivilege	2184	WMIC.exe
Token: SeUndockPrivilege	2184	WMIC.exe
Token: SeManageVolumePrivilege	2184	WMIC.exe
Token: 33	2184	WMIC.exe
Token: 34	2184	WMIC.exe
Token: 35	2184	WMIC.exe
Token: SeBackupPrivilege	1552	wbengine.exe
Token: SeRestorePrivilege	1552	wbengine.exe
Token: SeSecurityPrivilege	1552	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 2752	2292	2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe	30
PID 2292 wrote to memory of 2752	2292	2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe	30
PID 2292 wrote to memory of 2752	2292	2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe	30
PID 2752 wrote to memory of 1956	2752	svchost.exe	32
PID 2752 wrote to memory of 1956	2752	svchost.exe	32
PID 2752 wrote to memory of 1956	2752	svchost.exe	32
PID 1956 wrote to memory of 768	1956	cmd.exe	34
PID 1956 wrote to memory of 768	1956	cmd.exe	34
PID 1956 wrote to memory of 768	1956	cmd.exe	34
PID 1956 wrote to memory of 2184	1956	cmd.exe	37
PID 1956 wrote to memory of 2184	1956	cmd.exe	37
PID 1956 wrote to memory of 2184	1956	cmd.exe	37
PID 2752 wrote to memory of 2252	2752	svchost.exe	39
PID 2752 wrote to memory of 2252	2752	svchost.exe	39
PID 2752 wrote to memory of 2252	2752	svchost.exe	39
PID 2252 wrote to memory of 2656	2252	cmd.exe	41
PID 2252 wrote to memory of 2656	2252	cmd.exe	41
PID 2252 wrote to memory of 2656	2252	cmd.exe	41
PID 2252 wrote to memory of 1092	2252	cmd.exe	42
PID 2252 wrote to memory of 1092	2252	cmd.exe	42
PID 2252 wrote to memory of 1092	2252	cmd.exe	42
PID 2752 wrote to memory of 1540	2752	svchost.exe	43
PID 2752 wrote to memory of 1540	2752	svchost.exe	43
PID 2752 wrote to memory of 1540	2752	svchost.exe	43
PID 1540 wrote to memory of 968	1540	cmd.exe	45
PID 1540 wrote to memory of 968	1540	cmd.exe	45
PID 1540 wrote to memory of 968	1540	cmd.exe	45
PID 2752 wrote to memory of 1868	2752	svchost.exe	49
PID 2752 wrote to memory of 1868	2752	svchost.exe	49
PID 2752 wrote to memory of 1868	2752	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\2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2292
- 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:2752
- - 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:1956
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:768
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:2184
- - 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:2252
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2656
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1092
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1540
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:968
- - 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:1868

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1696

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1552

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:1536

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:916

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
796e7bcc691f6c21d235ae0c301b1081

SHA1
7ef3bf6e556cbe7261abe797a0a3bb588cd09067

SHA256
ff231952158f7314a3e73e46b92843e98ceff8d396092873d02eb98d0705da49

SHA512
e5e7848208ed1377de2af39aeedf1e40a684de52699faa0c4445f66037f7c7ee884d96fb2d159f7432dbb2794a651c0e9375e7bb6152c68a423b14c631d245eb

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

Filesize
815B

MD5
6ace40f2b0e2fa58f8a98bc1fadf70f2

SHA1
0e83b61f2a0a2b68fa9a530cf16a1bb40300d7f5

SHA256
bc4e8b349bbba233664452506649d78668edc1969f0bccb74991b04531cd4fa1

SHA512
96bc866ace3e07f02471090e85e2ebd2670ca627d5b2de3c73a4094bf7d5619c5b4358f867bcfd290235bc69e7ff880b614e34a5abeecf9f9b6970d4cce8a01c

Download Submit
memory/2292-1-0x0000000000D60000-0x0000000000D6C000-memory.dmp

Filesize
48KB

Download
memory/2292-0-0x000007FEF5E43000-0x000007FEF5E44000-memory.dmp

Filesize
4KB

Download
memory/2752-21-0x000007FEF5450000-0x000007FEF5E3C000-memory.dmp

Filesize
9.9MB

Download
memory/2752-7-0x0000000000D30000-0x0000000000D3C000-memory.dmp

Filesize
48KB

Download
memory/2752-499-0x000007FEF5453000-0x000007FEF5454000-memory.dmp

Filesize
4KB

Download
memory/2752-500-0x000007FEF5450000-0x000007FEF5E3C000-memory.dmp

Filesize
9.9MB

Download