chaos | 24833a516b737c23c95033544877605e95b518e601290e3fd76609819d3c6c6e

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
11-11-2024 03:37

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General

Target

2024-11-11_aaea4f5c500eefc364887278b249f2c3_destroyer_wannacry.exe
Size

43KB
MD5

aaea4f5c500eefc364887278b249f2c3
SHA1

4b0561d911c0b6ebd656af498d9c1a57fe6f6347
SHA256

24833a516b737c23c95033544877605e95b518e601290e3fd76609819d3c6c6e
SHA512

2dafd50f3787886d6a4f444924c7d2228171cd0226d1d244f96887db6c74c84f25ce1ab39781fa28eb93d255838c37f63d00c2052157f28c76ce9ab334b76e43
SSDEEP

768:Vn3kI1tGdpnN2fKXRATr9iS0vMzCPBM6QawagVj7j3XlzqWUBb3Jee:F3kI1tEwImTr9iS0vxJM6u7j3Jq55oe

Score

10^/10

chaos defense_evasion evasion execution impact ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\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/1528-1-0x0000000001050000-0x0000000001062000-memory.dmp	family_chaos
behavioral1/files/0x000a00000001202c-6.dat	family_chaos
behavioral1/memory/1200-8-0x0000000000DF0000-0x0000000000E02000-memory.dmp	family_chaos

Chaos 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
2396	bcdedit.exe
2156	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
2252	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
1200	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\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\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\Admin\Saved Games\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\Administrative Tools\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-2039016743-699959520-214465309-1000\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\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\System Tools\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\Music\Sample 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\Searches\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\Pictures\Sample Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\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\Music\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\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\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\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\Favorites\Links\desktop.ini	svchost.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-1-5-21-2039016743-699959520-214465309-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\53bup9dkm.jpg"	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
2804	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1736	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1200	svchost.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1528	2024-11-11_aaea4f5c500eefc364887278b249f2c3_destroyer_wannacry.exe
1528	2024-11-11_aaea4f5c500eefc364887278b249f2c3_destroyer_wannacry.exe
1528	2024-11-11_aaea4f5c500eefc364887278b249f2c3_destroyer_wannacry.exe
1200	svchost.exe
1200	svchost.exe
1200	svchost.exe
1200	svchost.exe
1200	svchost.exe
1200	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	1528	2024-11-11_aaea4f5c500eefc364887278b249f2c3_destroyer_wannacry.exe
Token: SeDebugPrivilege	1200	svchost.exe
Token: SeBackupPrivilege	2628	vssvc.exe
Token: SeRestorePrivilege	2628	vssvc.exe
Token: SeAuditPrivilege	2628	vssvc.exe
Token: SeIncreaseQuotaPrivilege	2956	WMIC.exe
Token: SeSecurityPrivilege	2956	WMIC.exe
Token: SeTakeOwnershipPrivilege	2956	WMIC.exe
Token: SeLoadDriverPrivilege	2956	WMIC.exe
Token: SeSystemProfilePrivilege	2956	WMIC.exe
Token: SeSystemtimePrivilege	2956	WMIC.exe
Token: SeProfSingleProcessPrivilege	2956	WMIC.exe
Token: SeIncBasePriorityPrivilege	2956	WMIC.exe
Token: SeCreatePagefilePrivilege	2956	WMIC.exe
Token: SeBackupPrivilege	2956	WMIC.exe
Token: SeRestorePrivilege	2956	WMIC.exe
Token: SeShutdownPrivilege	2956	WMIC.exe
Token: SeDebugPrivilege	2956	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2956	WMIC.exe
Token: SeRemoteShutdownPrivilege	2956	WMIC.exe
Token: SeUndockPrivilege	2956	WMIC.exe
Token: SeManageVolumePrivilege	2956	WMIC.exe
Token: 33	2956	WMIC.exe
Token: 34	2956	WMIC.exe
Token: 35	2956	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2956	WMIC.exe
Token: SeSecurityPrivilege	2956	WMIC.exe
Token: SeTakeOwnershipPrivilege	2956	WMIC.exe
Token: SeLoadDriverPrivilege	2956	WMIC.exe
Token: SeSystemProfilePrivilege	2956	WMIC.exe
Token: SeSystemtimePrivilege	2956	WMIC.exe
Token: SeProfSingleProcessPrivilege	2956	WMIC.exe
Token: SeIncBasePriorityPrivilege	2956	WMIC.exe
Token: SeCreatePagefilePrivilege	2956	WMIC.exe
Token: SeBackupPrivilege	2956	WMIC.exe
Token: SeRestorePrivilege	2956	WMIC.exe
Token: SeShutdownPrivilege	2956	WMIC.exe
Token: SeDebugPrivilege	2956	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2956	WMIC.exe
Token: SeRemoteShutdownPrivilege	2956	WMIC.exe
Token: SeUndockPrivilege	2956	WMIC.exe
Token: SeManageVolumePrivilege	2956	WMIC.exe
Token: 33	2956	WMIC.exe
Token: 34	2956	WMIC.exe
Token: 35	2956	WMIC.exe
Token: SeBackupPrivilege	536	wbengine.exe
Token: SeRestorePrivilege	536	wbengine.exe
Token: SeSecurityPrivilege	536	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1528 wrote to memory of 1200	1528	2024-11-11_aaea4f5c500eefc364887278b249f2c3_destroyer_wannacry.exe	30
PID 1528 wrote to memory of 1200	1528	2024-11-11_aaea4f5c500eefc364887278b249f2c3_destroyer_wannacry.exe	30
PID 1528 wrote to memory of 1200	1528	2024-11-11_aaea4f5c500eefc364887278b249f2c3_destroyer_wannacry.exe	30
PID 1200 wrote to memory of 2656	1200	svchost.exe	31
PID 1200 wrote to memory of 2656	1200	svchost.exe	31
PID 1200 wrote to memory of 2656	1200	svchost.exe	31
PID 2656 wrote to memory of 2804	2656	cmd.exe	33
PID 2656 wrote to memory of 2804	2656	cmd.exe	33
PID 2656 wrote to memory of 2804	2656	cmd.exe	33
PID 2656 wrote to memory of 2956	2656	cmd.exe	37
PID 2656 wrote to memory of 2956	2656	cmd.exe	37
PID 2656 wrote to memory of 2956	2656	cmd.exe	37
PID 1200 wrote to memory of 1964	1200	svchost.exe	39
PID 1200 wrote to memory of 1964	1200	svchost.exe	39
PID 1200 wrote to memory of 1964	1200	svchost.exe	39
PID 1964 wrote to memory of 2396	1964	cmd.exe	41
PID 1964 wrote to memory of 2396	1964	cmd.exe	41
PID 1964 wrote to memory of 2396	1964	cmd.exe	41
PID 1964 wrote to memory of 2156	1964	cmd.exe	42
PID 1964 wrote to memory of 2156	1964	cmd.exe	42
PID 1964 wrote to memory of 2156	1964	cmd.exe	42
PID 1200 wrote to memory of 2444	1200	svchost.exe	43
PID 1200 wrote to memory of 2444	1200	svchost.exe	43
PID 1200 wrote to memory of 2444	1200	svchost.exe	43
PID 2444 wrote to memory of 2252	2444	cmd.exe	45
PID 2444 wrote to memory of 2252	2444	cmd.exe	45
PID 2444 wrote to memory of 2252	2444	cmd.exe	45
PID 1200 wrote to memory of 1736	1200	svchost.exe	49
PID 1200 wrote to memory of 1736	1200	svchost.exe	49
PID 1200 wrote to memory of 1736	1200	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\2024-11-11_aaea4f5c500eefc364887278b249f2c3_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-11_aaea4f5c500eefc364887278b249f2c3_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1528
- 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)
  - Sets desktop wallpaper using registry
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1200
- - 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:2656
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:2804
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:2956
- - 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:1964
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2396
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2156
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2444
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:2252
- - 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:1736

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2628

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:536

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:2188

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:944

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

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

Defacement

T1491

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

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

Filesize
43KB

MD5
aaea4f5c500eefc364887278b249f2c3

SHA1
4b0561d911c0b6ebd656af498d9c1a57fe6f6347

SHA256
24833a516b737c23c95033544877605e95b518e601290e3fd76609819d3c6c6e

SHA512
2dafd50f3787886d6a4f444924c7d2228171cd0226d1d244f96887db6c74c84f25ce1ab39781fa28eb93d255838c37f63d00c2052157f28c76ce9ab334b76e43

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

Filesize
964B

MD5
4217b8b83ce3c3f70029a056546f8fd0

SHA1
487cdb5733d073a0427418888e8f7070fe782a03

SHA256
7d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121

SHA512
2a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740

Download Submit
memory/1200-8-0x0000000000DF0000-0x0000000000E02000-memory.dmp

Filesize
72KB

Download
memory/1200-12-0x000007FEF5100000-0x000007FEF5AEC000-memory.dmp

Filesize
9.9MB

Download
memory/1200-74-0x000007FEF5100000-0x000007FEF5AEC000-memory.dmp

Filesize
9.9MB

Download
memory/1200-75-0x000007FEF5100000-0x000007FEF5AEC000-memory.dmp

Filesize
9.9MB

Download
memory/1528-0-0x000007FEF5103000-0x000007FEF5104000-memory.dmp

Filesize
4KB

Download
memory/1528-1-0x0000000001050000-0x0000000001062000-memory.dmp

Filesize
72KB

Download
memory/1528-2-0x000007FEF5103000-0x000007FEF5104000-memory.dmp

Filesize
4KB

Download