chaos | 32cd9af5957086730ab43764925ef48398513fd17bf010f882cd5ed6746d29d5

Analysis

max time kernel
16s
max time network
16s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
24-08-2024 14:46

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General

Target

2024-08-24_4b51f50f9548a35fe71aa49b4310f9a5_destroyer_wannacry.exe
Size

99KB
MD5

4b51f50f9548a35fe71aa49b4310f9a5
SHA1

87ee5b9c93e33dbfeb64f253d00d45110c1f768e
SHA256

32cd9af5957086730ab43764925ef48398513fd17bf010f882cd5ed6746d29d5
SHA512

bca7f5a1bb4619adc423a431f7d4e0d9505b32e866dd0e8cc9e929cc7440da8c284da2691eb75c4f0f04fec4074e04f5e6cf259bd36cd8b7f45d3e8d6ba17708
SSDEEP

384:5kMg/bqoymcxtinWcGZvD7FJFr91C41r72sWmIxb5MeC:eqoyptoWcsjFr9T1rSsXIxbaeC

Score

10^/10

chaos defense_evasion evasion execution impact ransomware spyware stealer

Malware Config

Extracted

Path

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

Family

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
behavioral1/memory/2440-7-0x0000000000810000-0x0000000000832000-memory.dmp	family_chaos
behavioral1/files/0x00080000000120fe-6.dat	family_chaos
behavioral1/memory/848-1-0x0000000000B60000-0x0000000000B82000-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
1016	bcdedit.exe
1768	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
1788	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
2440	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\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\Maintenance\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\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\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\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\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-1-5-21-2703099537-420551529-3771253338-1000\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Pictures\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\Start Menu\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\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\Admin\Saved Games\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\Contacts\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\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\Internet Explorer\Quick Launch\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\Favorites\Links for United States\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\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\Public\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\Programs\Accessories\Accessibility\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
3012	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
768	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2440	svchost.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
848	2024-08-24_4b51f50f9548a35fe71aa49b4310f9a5_destroyer_wannacry.exe
2440	svchost.exe
2440	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	848	2024-08-24_4b51f50f9548a35fe71aa49b4310f9a5_destroyer_wannacry.exe
Token: SeDebugPrivilege	2440	svchost.exe
Token: SeBackupPrivilege	2976	vssvc.exe
Token: SeRestorePrivilege	2976	vssvc.exe
Token: SeAuditPrivilege	2976	vssvc.exe
Token: SeIncreaseQuotaPrivilege	2004	WMIC.exe
Token: SeSecurityPrivilege	2004	WMIC.exe
Token: SeTakeOwnershipPrivilege	2004	WMIC.exe
Token: SeLoadDriverPrivilege	2004	WMIC.exe
Token: SeSystemProfilePrivilege	2004	WMIC.exe
Token: SeSystemtimePrivilege	2004	WMIC.exe
Token: SeProfSingleProcessPrivilege	2004	WMIC.exe
Token: SeIncBasePriorityPrivilege	2004	WMIC.exe
Token: SeCreatePagefilePrivilege	2004	WMIC.exe
Token: SeBackupPrivilege	2004	WMIC.exe
Token: SeRestorePrivilege	2004	WMIC.exe
Token: SeShutdownPrivilege	2004	WMIC.exe
Token: SeDebugPrivilege	2004	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2004	WMIC.exe
Token: SeRemoteShutdownPrivilege	2004	WMIC.exe
Token: SeUndockPrivilege	2004	WMIC.exe
Token: SeManageVolumePrivilege	2004	WMIC.exe
Token: 33	2004	WMIC.exe
Token: 34	2004	WMIC.exe
Token: 35	2004	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2004	WMIC.exe
Token: SeSecurityPrivilege	2004	WMIC.exe
Token: SeTakeOwnershipPrivilege	2004	WMIC.exe
Token: SeLoadDriverPrivilege	2004	WMIC.exe
Token: SeSystemProfilePrivilege	2004	WMIC.exe
Token: SeSystemtimePrivilege	2004	WMIC.exe
Token: SeProfSingleProcessPrivilege	2004	WMIC.exe
Token: SeIncBasePriorityPrivilege	2004	WMIC.exe
Token: SeCreatePagefilePrivilege	2004	WMIC.exe
Token: SeBackupPrivilege	2004	WMIC.exe
Token: SeRestorePrivilege	2004	WMIC.exe
Token: SeShutdownPrivilege	2004	WMIC.exe
Token: SeDebugPrivilege	2004	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2004	WMIC.exe
Token: SeRemoteShutdownPrivilege	2004	WMIC.exe
Token: SeUndockPrivilege	2004	WMIC.exe
Token: SeManageVolumePrivilege	2004	WMIC.exe
Token: 33	2004	WMIC.exe
Token: 34	2004	WMIC.exe
Token: 35	2004	WMIC.exe
Token: SeBackupPrivilege	1488	wbengine.exe
Token: SeRestorePrivilege	1488	wbengine.exe
Token: SeSecurityPrivilege	1488	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 848 wrote to memory of 2440	848	2024-08-24_4b51f50f9548a35fe71aa49b4310f9a5_destroyer_wannacry.exe	28
PID 848 wrote to memory of 2440	848	2024-08-24_4b51f50f9548a35fe71aa49b4310f9a5_destroyer_wannacry.exe	28
PID 848 wrote to memory of 2440	848	2024-08-24_4b51f50f9548a35fe71aa49b4310f9a5_destroyer_wannacry.exe	28
PID 2440 wrote to memory of 2576	2440	svchost.exe	30
PID 2440 wrote to memory of 2576	2440	svchost.exe	30
PID 2440 wrote to memory of 2576	2440	svchost.exe	30
PID 2576 wrote to memory of 3012	2576	cmd.exe	32
PID 2576 wrote to memory of 3012	2576	cmd.exe	32
PID 2576 wrote to memory of 3012	2576	cmd.exe	32
PID 2576 wrote to memory of 2004	2576	cmd.exe	35
PID 2576 wrote to memory of 2004	2576	cmd.exe	35
PID 2576 wrote to memory of 2004	2576	cmd.exe	35
PID 2440 wrote to memory of 2764	2440	svchost.exe	37
PID 2440 wrote to memory of 2764	2440	svchost.exe	37
PID 2440 wrote to memory of 2764	2440	svchost.exe	37
PID 2764 wrote to memory of 1016	2764	cmd.exe	39
PID 2764 wrote to memory of 1016	2764	cmd.exe	39
PID 2764 wrote to memory of 1016	2764	cmd.exe	39
PID 2764 wrote to memory of 1768	2764	cmd.exe	40
PID 2764 wrote to memory of 1768	2764	cmd.exe	40
PID 2764 wrote to memory of 1768	2764	cmd.exe	40
PID 2440 wrote to memory of 1088	2440	svchost.exe	41
PID 2440 wrote to memory of 1088	2440	svchost.exe	41
PID 2440 wrote to memory of 1088	2440	svchost.exe	41
PID 1088 wrote to memory of 1788	1088	cmd.exe	43
PID 1088 wrote to memory of 1788	1088	cmd.exe	43
PID 1088 wrote to memory of 1788	1088	cmd.exe	43
PID 2440 wrote to memory of 768	2440	svchost.exe	47
PID 2440 wrote to memory of 768	2440	svchost.exe	47
PID 2440 wrote to memory of 768	2440	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\2024-08-24_4b51f50f9548a35fe71aa49b4310f9a5_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-24_4b51f50f9548a35fe71aa49b4310f9a5_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:848
- 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:2440
- - 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:3012
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:2004
- - 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:2764
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1016
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1768
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1088
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:1788
- - 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:768

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2976

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1488

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:1592

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:2144

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

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
99KB

MD5
4b51f50f9548a35fe71aa49b4310f9a5

SHA1
87ee5b9c93e33dbfeb64f253d00d45110c1f768e

SHA256
32cd9af5957086730ab43764925ef48398513fd17bf010f882cd5ed6746d29d5

SHA512
bca7f5a1bb4619adc423a431f7d4e0d9505b32e866dd0e8cc9e929cc7440da8c284da2691eb75c4f0f04fec4074e04f5e6cf259bd36cd8b7f45d3e8d6ba17708

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

Filesize
964B

MD5
4217b8b83ce3c3f70029a056546f8fd0

SHA1
487cdb5733d073a0427418888e8f7070fe782a03

SHA256
7d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121

SHA512
2a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740

Download Submit
memory/848-1-0x0000000000B60000-0x0000000000B82000-memory.dmp

Filesize
136KB

Download
memory/848-0-0x000007FEF64A3000-0x000007FEF64A4000-memory.dmp

Filesize
4KB

Download
memory/2440-23-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp

Filesize
9.9MB

Download
memory/2440-7-0x0000000000810000-0x0000000000832000-memory.dmp

Filesize
136KB

Download
memory/2440-488-0x000007FEF5AB3000-0x000007FEF5AB4000-memory.dmp

Filesize
4KB

Download
memory/2440-489-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp

Filesize
9.9MB

Download