chaos | 3d0004f13bc7aef133147a64b89cd4851a6723c494ca41a89bde3c767a10a153

Analysis

max time kernel
148s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
29-02-2024 08:39

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General

Target

2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
Size

457KB
MD5

6b43280b163e40aa2fb0b074e6046cf9
SHA1

c6128620b37fe79066a7c59668d29e7fa0368cdb
SHA256

3d0004f13bc7aef133147a64b89cd4851a6723c494ca41a89bde3c767a10a153
SHA512

dbca24cb420d0e38356de0e27139765a14e839417ca05a3434e2db12fb59baf96caaa79ecd00a4e1b7310135f61bd495d30f30ce3e980ed9563dc6af6527f432
SSDEEP

12288:29FRlWHJnjGFljnPt7kGbMT3dk4KBY/DwAM5Gx7uY0y8MMlrxl/:VJnKGTTMt

Score

10^/10

chaos evasion ransomware spyware stealer

Malware Config

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 2 IoCs

resource	yara_rule
behavioral2/memory/2108-0-0x0000000000E00000-0x0000000000E78000-memory.dmp	family_chaos
behavioral2/files/0x00040000000227ac-6.dat	family_chaos

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

File Deletion
T1070.004

Inhibit System Recovery
T1490

Detects command variations typically used by ransomware 2 IoCs

resource	yara_rule
behavioral2/memory/2108-0-0x0000000000E00000-0x0000000000E78000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral2/files/0x00040000000227ac-6.dat	INDICATOR_SUSPICIOUS_GENRansomware

Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
540	bcdedit.exe
4464	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
1392	wbadmin.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	svchost.exe
Key value queried	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.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\readme ;D	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4696	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\Desktop\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\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Contacts\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\Admin\OneDrive\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	F:\$RECYCLE.BIN\S-1-5-21-513485977-2495024337-1260977654-1000\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\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\Pictures\Saved Pictures\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\System Tools\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Music\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\Internet Explorer\Quick Launch\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\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\Favorites\Links\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\Recent\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\AppData\Roaming\Microsoft\Windows\AccountPictures\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\Public\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\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-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\5ct1rc7l0.jpg"	svchost.exe

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

System Information Discovery
T1082

Checks SCSI registry key(s) 3 TTPs 4 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000	vds.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName	vds.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_DADY&PROD_DADY_DVD-ROM\4&215468A5&0&010000	vds.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_DADY_DVD-ROM\4&215468a5&0&010000\FriendlyName	vds.exe

Interacts with shadow copies 2 TTPs 1 IoCs

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

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

pid	Process
3412	vssadmin.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000_Classes\Local Settings	svchost.exe
Key created	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000_Classes\Local Settings	OpenWith.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4696	svchost.exe

Suspicious behavior: EnumeratesProcesses 45 IoCs

pid	Process
2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
4696	svchost.exe
4696	svchost.exe
4696	svchost.exe
4696	svchost.exe
4696	svchost.exe
4696	svchost.exe
4696	svchost.exe
4696	svchost.exe
4696	svchost.exe
4696	svchost.exe
4696	svchost.exe
4696	svchost.exe
4696	svchost.exe
4696	svchost.exe
4696	svchost.exe
4696	svchost.exe
4696	svchost.exe
4696	svchost.exe
4696	svchost.exe
4696	svchost.exe
4696	svchost.exe
4696	svchost.exe
4696	svchost.exe
4696	svchost.exe

Suspicious use of AdjustPrivilegeToken 50 IoCs

description	pid	Process
Token: SeDebugPrivilege	2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
Token: SeDebugPrivilege	4696	svchost.exe
Token: SeBackupPrivilege	4392	vssvc.exe
Token: SeRestorePrivilege	4392	vssvc.exe
Token: SeAuditPrivilege	4392	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1200	WMIC.exe
Token: SeSecurityPrivilege	1200	WMIC.exe
Token: SeTakeOwnershipPrivilege	1200	WMIC.exe
Token: SeLoadDriverPrivilege	1200	WMIC.exe
Token: SeSystemProfilePrivilege	1200	WMIC.exe
Token: SeSystemtimePrivilege	1200	WMIC.exe
Token: SeProfSingleProcessPrivilege	1200	WMIC.exe
Token: SeIncBasePriorityPrivilege	1200	WMIC.exe
Token: SeCreatePagefilePrivilege	1200	WMIC.exe
Token: SeBackupPrivilege	1200	WMIC.exe
Token: SeRestorePrivilege	1200	WMIC.exe
Token: SeShutdownPrivilege	1200	WMIC.exe
Token: SeDebugPrivilege	1200	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1200	WMIC.exe
Token: SeRemoteShutdownPrivilege	1200	WMIC.exe
Token: SeUndockPrivilege	1200	WMIC.exe
Token: SeManageVolumePrivilege	1200	WMIC.exe
Token: 33	1200	WMIC.exe
Token: 34	1200	WMIC.exe
Token: 35	1200	WMIC.exe
Token: 36	1200	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1200	WMIC.exe
Token: SeSecurityPrivilege	1200	WMIC.exe
Token: SeTakeOwnershipPrivilege	1200	WMIC.exe
Token: SeLoadDriverPrivilege	1200	WMIC.exe
Token: SeSystemProfilePrivilege	1200	WMIC.exe
Token: SeSystemtimePrivilege	1200	WMIC.exe
Token: SeProfSingleProcessPrivilege	1200	WMIC.exe
Token: SeIncBasePriorityPrivilege	1200	WMIC.exe
Token: SeCreatePagefilePrivilege	1200	WMIC.exe
Token: SeBackupPrivilege	1200	WMIC.exe
Token: SeRestorePrivilege	1200	WMIC.exe
Token: SeShutdownPrivilege	1200	WMIC.exe
Token: SeDebugPrivilege	1200	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1200	WMIC.exe
Token: SeRemoteShutdownPrivilege	1200	WMIC.exe
Token: SeUndockPrivilege	1200	WMIC.exe
Token: SeManageVolumePrivilege	1200	WMIC.exe
Token: 33	1200	WMIC.exe
Token: 34	1200	WMIC.exe
Token: 35	1200	WMIC.exe
Token: 36	1200	WMIC.exe
Token: SeBackupPrivilege	2420	wbengine.exe
Token: SeRestorePrivilege	2420	wbengine.exe
Token: SeSecurityPrivilege	2420	wbengine.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4688	OpenWith.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2108 wrote to memory of 4696	2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe	89
PID 2108 wrote to memory of 4696	2108	2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe	89
PID 4696 wrote to memory of 4812	4696	svchost.exe	90
PID 4696 wrote to memory of 4812	4696	svchost.exe	90
PID 4812 wrote to memory of 3412	4812	cmd.exe	92
PID 4812 wrote to memory of 3412	4812	cmd.exe	92
PID 4812 wrote to memory of 1200	4812	cmd.exe	95
PID 4812 wrote to memory of 1200	4812	cmd.exe	95
PID 4696 wrote to memory of 3816	4696	svchost.exe	97
PID 4696 wrote to memory of 3816	4696	svchost.exe	97
PID 3816 wrote to memory of 540	3816	cmd.exe	99
PID 3816 wrote to memory of 540	3816	cmd.exe	99
PID 3816 wrote to memory of 4464	3816	cmd.exe	100
PID 3816 wrote to memory of 4464	3816	cmd.exe	100
PID 4696 wrote to memory of 1404	4696	svchost.exe	101
PID 4696 wrote to memory of 1404	4696	svchost.exe	101
PID 1404 wrote to memory of 1392	1404	cmd.exe	104
PID 1404 wrote to memory of 1392	1404	cmd.exe	104

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\2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-29_6b43280b163e40aa2fb0b074e6046cf9_wannacry.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2108
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Drops desktop.ini file(s)
  - Sets desktop wallpaper using registry
  - Modifies registry class
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4696
- - 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:4812
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:3412
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:1200
- - 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:3816
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:540
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:4464
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1404
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:1392

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4392

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2420

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:456

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
- Checks SCSI registry key(s)
PID:1608

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:4688

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

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
457KB

MD5
6b43280b163e40aa2fb0b074e6046cf9

SHA1
c6128620b37fe79066a7c59668d29e7fa0368cdb

SHA256
3d0004f13bc7aef133147a64b89cd4851a6723c494ca41a89bde3c767a10a153

SHA512
dbca24cb420d0e38356de0e27139765a14e839417ca05a3434e2db12fb59baf96caaa79ecd00a4e1b7310135f61bd495d30f30ce3e980ed9563dc6af6527f432

Download Submit
C:\Users\Admin\Desktop\readme ;D

Filesize
259B

MD5
b30b05d00c809e80d07cf503650e43f6

SHA1
cc8f1feb912ac3ab0f7b954b431abc39a38327af

SHA256
50a55a159fa561b1230269eadfe01ae665f77a162099723b84f71cdb902b7232

SHA512
d4bed74076c85e19981517bb6a081b67495045b9dcb4e9d5ff0b8365c8d6fa9536d051a484dc59b8324a59e273d02d6c1f5c43b5c458e261696c13c785904822

Download Submit
memory/2108-0-0x0000000000E00000-0x0000000000E78000-memory.dmp

Filesize
480KB

Download
memory/2108-1-0x00007FFCA7770000-0x00007FFCA8231000-memory.dmp

Filesize
10.8MB

Download
memory/2108-14-0x00007FFCA7770000-0x00007FFCA8231000-memory.dmp

Filesize
10.8MB

Download
memory/4696-15-0x00007FFCA7770000-0x00007FFCA8231000-memory.dmp

Filesize
10.8MB

Download
memory/4696-68-0x00007FFCA7770000-0x00007FFCA8231000-memory.dmp

Filesize
10.8MB

Download