chaos | 14b94844b99ac43c014ea73c3400097e3239a7307d1618e84159a741ab0e8ac3

Analysis

max time kernel
32s
max time network
34s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
09/03/2023, 14:20

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General

Target

2023-03-08_d77f7e460e5036f65677b24ed24c2dff_destroyer_wannacry.exe
Size

87KB
MD5

d77f7e460e5036f65677b24ed24c2dff
SHA1

053afa00864c3c0c896e48be382436c417cabb34
SHA256

14b94844b99ac43c014ea73c3400097e3239a7307d1618e84159a741ab0e8ac3
SHA512

f447b9b9a60f7a6fddd137a228efc7c056b989c698c85c30e6eda7c3b3990fb7a82fe2387b8fb8ee38d21704f9924a989a2a87f1d34badf20a3c89a2b9dfe3b9
SSDEEP

1536:1o2ECd3kfHr9PZAKodFF2QRa/oDc10QxsSmCDo/PjsXMbyxFmwYSDfgCso:1oWd3kfr9P5QRaADc17xAKRjFr4Lo

Score

10^/10

chaos evasion ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\Downloads\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 5 IoCs

resource	yara_rule
behavioral1/memory/1928-54-0x0000000000BB0000-0x0000000000BCC000-memory.dmp	family_chaos
behavioral1/files/0x000500000000b46e-59.dat	family_chaos
behavioral1/files/0x000500000000b46e-58.dat	family_chaos
behavioral1/memory/2020-60-0x00000000003C0000-0x00000000003DC000-memory.dmp	family_chaos
behavioral1/memory/2020-67-0x0000000000590000-0x0000000000610000-memory.dmp	family_chaos

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
1416	bcdedit.exe
672	bcdedit.exe

Deletes backup catalog 3 TTPs 1 IoCs

Uses wbadmin.exe to inhibit system recovery.

ransomware

Command-Line Interface

T1059

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
1720	wbadmin.exe

Modifies extensions of user files 6 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File renamed	C:\Users\Admin\Pictures\UninstallStart.tif => C:\Users\Admin\Pictures\UninstallStart.tif.viuf	svchost.exe
File renamed	C:\Users\Admin\Pictures\CompressUse.raw => C:\Users\Admin\Pictures\CompressUse.raw.mm4f	svchost.exe
File renamed	C:\Users\Admin\Pictures\ConvertWatch.raw => C:\Users\Admin\Pictures\ConvertWatch.raw.s51t	svchost.exe
File renamed	C:\Users\Admin\Pictures\DisconnectSync.raw => C:\Users\Admin\Pictures\DisconnectSync.raw.jtvo	svchost.exe
File renamed	C:\Users\Admin\Pictures\MeasureDisconnect.png => C:\Users\Admin\Pictures\MeasureDisconnect.png.89o7	svchost.exe
File renamed	C:\Users\Admin\Pictures\RemoveRepair.png => C:\Users\Admin\Pictures\RemoveRepair.png.rtbx	svchost.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
2020	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
T1081

Drops desktop.ini file(s) 33 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Desktop\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\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\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\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\SendTo\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\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\Public\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\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\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Documents\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\Desktop\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\Recent\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\Admin\Links\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\Windows\Start Menu\Programs\Accessories\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\Pictures\Sample Pictures\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
File opened for modification	C:\Users\Public\Music\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-1-5-21-3948302646-268491222-1934009652-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\y9dg06caz.jpg"	svchost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Interacts with shadow copies 2 TTPs 1 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
636	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1620	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2020	svchost.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1928	2023-03-08_d77f7e460e5036f65677b24ed24c2dff_destroyer_wannacry.exe
2020	svchost.exe
2020	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	1928	2023-03-08_d77f7e460e5036f65677b24ed24c2dff_destroyer_wannacry.exe
Token: SeDebugPrivilege	2020	svchost.exe
Token: SeBackupPrivilege	1172	vssvc.exe
Token: SeRestorePrivilege	1172	vssvc.exe
Token: SeAuditPrivilege	1172	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1924	WMIC.exe
Token: SeSecurityPrivilege	1924	WMIC.exe
Token: SeTakeOwnershipPrivilege	1924	WMIC.exe
Token: SeLoadDriverPrivilege	1924	WMIC.exe
Token: SeSystemProfilePrivilege	1924	WMIC.exe
Token: SeSystemtimePrivilege	1924	WMIC.exe
Token: SeProfSingleProcessPrivilege	1924	WMIC.exe
Token: SeIncBasePriorityPrivilege	1924	WMIC.exe
Token: SeCreatePagefilePrivilege	1924	WMIC.exe
Token: SeBackupPrivilege	1924	WMIC.exe
Token: SeRestorePrivilege	1924	WMIC.exe
Token: SeShutdownPrivilege	1924	WMIC.exe
Token: SeDebugPrivilege	1924	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1924	WMIC.exe
Token: SeRemoteShutdownPrivilege	1924	WMIC.exe
Token: SeUndockPrivilege	1924	WMIC.exe
Token: SeManageVolumePrivilege	1924	WMIC.exe
Token: 33	1924	WMIC.exe
Token: 34	1924	WMIC.exe
Token: 35	1924	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1924	WMIC.exe
Token: SeSecurityPrivilege	1924	WMIC.exe
Token: SeTakeOwnershipPrivilege	1924	WMIC.exe
Token: SeLoadDriverPrivilege	1924	WMIC.exe
Token: SeSystemProfilePrivilege	1924	WMIC.exe
Token: SeSystemtimePrivilege	1924	WMIC.exe
Token: SeProfSingleProcessPrivilege	1924	WMIC.exe
Token: SeIncBasePriorityPrivilege	1924	WMIC.exe
Token: SeCreatePagefilePrivilege	1924	WMIC.exe
Token: SeBackupPrivilege	1924	WMIC.exe
Token: SeRestorePrivilege	1924	WMIC.exe
Token: SeShutdownPrivilege	1924	WMIC.exe
Token: SeDebugPrivilege	1924	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1924	WMIC.exe
Token: SeRemoteShutdownPrivilege	1924	WMIC.exe
Token: SeUndockPrivilege	1924	WMIC.exe
Token: SeManageVolumePrivilege	1924	WMIC.exe
Token: 33	1924	WMIC.exe
Token: 34	1924	WMIC.exe
Token: 35	1924	WMIC.exe
Token: SeBackupPrivilege	1000	wbengine.exe
Token: SeRestorePrivilege	1000	wbengine.exe
Token: SeSecurityPrivilege	1000	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1928 wrote to memory of 2020	1928	2023-03-08_d77f7e460e5036f65677b24ed24c2dff_destroyer_wannacry.exe	28
PID 1928 wrote to memory of 2020	1928	2023-03-08_d77f7e460e5036f65677b24ed24c2dff_destroyer_wannacry.exe	28
PID 1928 wrote to memory of 2020	1928	2023-03-08_d77f7e460e5036f65677b24ed24c2dff_destroyer_wannacry.exe	28
PID 2020 wrote to memory of 1640	2020	svchost.exe	30
PID 2020 wrote to memory of 1640	2020	svchost.exe	30
PID 2020 wrote to memory of 1640	2020	svchost.exe	30
PID 1640 wrote to memory of 636	1640	cmd.exe	32
PID 1640 wrote to memory of 636	1640	cmd.exe	32
PID 1640 wrote to memory of 636	1640	cmd.exe	32
PID 1640 wrote to memory of 1924	1640	cmd.exe	36
PID 1640 wrote to memory of 1924	1640	cmd.exe	36
PID 1640 wrote to memory of 1924	1640	cmd.exe	36
PID 2020 wrote to memory of 1100	2020	svchost.exe	38
PID 2020 wrote to memory of 1100	2020	svchost.exe	38
PID 2020 wrote to memory of 1100	2020	svchost.exe	38
PID 1100 wrote to memory of 1416	1100	cmd.exe	40
PID 1100 wrote to memory of 1416	1100	cmd.exe	40
PID 1100 wrote to memory of 1416	1100	cmd.exe	40
PID 1100 wrote to memory of 672	1100	cmd.exe	41
PID 1100 wrote to memory of 672	1100	cmd.exe	41
PID 1100 wrote to memory of 672	1100	cmd.exe	41
PID 2020 wrote to memory of 520	2020	svchost.exe	42
PID 2020 wrote to memory of 520	2020	svchost.exe	42
PID 2020 wrote to memory of 520	2020	svchost.exe	42
PID 520 wrote to memory of 1720	520	cmd.exe	44
PID 520 wrote to memory of 1720	520	cmd.exe	44
PID 520 wrote to memory of 1720	520	cmd.exe	44
PID 2020 wrote to memory of 1620	2020	svchost.exe	48
PID 2020 wrote to memory of 1620	2020	svchost.exe	48
PID 2020 wrote to memory of 1620	2020	svchost.exe	48

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\2023-03-08_d77f7e460e5036f65677b24ed24c2dff_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2023-03-08_d77f7e460e5036f65677b24ed24c2dff_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1928
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Modifies extensions of user files
  - 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:2020
- - 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:1640
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:636
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:1924
- - 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:1100
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1416
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:672
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:520
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:1720
- - 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:1620

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1172

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1000

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:1444

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:612

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Command-Line Interface

T1059

Persistence

Privilege Escalation

Defense Evasion

File Deletion

T1107

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

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\read_it.txt

Filesize
964B

MD5
4217b8b83ce3c3f70029a056546f8fd0

SHA1
487cdb5733d073a0427418888e8f7070fe782a03

SHA256
7d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121

SHA512
2a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740

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

Filesize
87KB

MD5
d77f7e460e5036f65677b24ed24c2dff

SHA1
053afa00864c3c0c896e48be382436c417cabb34

SHA256
14b94844b99ac43c014ea73c3400097e3239a7307d1618e84159a741ab0e8ac3

SHA512
f447b9b9a60f7a6fddd137a228efc7c056b989c698c85c30e6eda7c3b3990fb7a82fe2387b8fb8ee38d21704f9924a989a2a87f1d34badf20a3c89a2b9dfe3b9

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

Filesize
87KB

MD5
d77f7e460e5036f65677b24ed24c2dff

SHA1
053afa00864c3c0c896e48be382436c417cabb34

SHA256
14b94844b99ac43c014ea73c3400097e3239a7307d1618e84159a741ab0e8ac3

SHA512
f447b9b9a60f7a6fddd137a228efc7c056b989c698c85c30e6eda7c3b3990fb7a82fe2387b8fb8ee38d21704f9924a989a2a87f1d34badf20a3c89a2b9dfe3b9

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

Filesize
964B

MD5
4217b8b83ce3c3f70029a056546f8fd0

SHA1
487cdb5733d073a0427418888e8f7070fe782a03

SHA256
7d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121

SHA512
2a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740

Download Submit
memory/1928-54-0x0000000000BB0000-0x0000000000BCC000-memory.dmp

Filesize
112KB

Download
memory/2020-60-0x00000000003C0000-0x00000000003DC000-memory.dmp

Filesize
112KB

Download
memory/2020-67-0x0000000000590000-0x0000000000610000-memory.dmp

Filesize
512KB

Download
memory/2020-519-0x0000000000590000-0x0000000000610000-memory.dmp

Filesize
512KB

Download