chaos | 91ef0318ac9a10ce0976b29f57ea570b6907cccc92f182f5e916d5273f0b71e3

Analysis

max time kernel
134s
max time network
109s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
22-08-2024 23:25

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General

Target

2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
Size

22KB
MD5

fffcec172fd2e908588f098ce331f3e7
SHA1

9846f2ca442cf1080ce104d737f90052fc5592a6
SHA256

91ef0318ac9a10ce0976b29f57ea570b6907cccc92f182f5e916d5273f0b71e3
SHA512

381b0691bb4e8c1bf0e7a4038c320faa112ad4b7d38ae2aa61c362aee7d6eedbb9c351ec5c57577af7081fc1d2c4e4ab756a282f63ba860f70ad3f06f27d9a3d
SSDEEP

384:u3Mg/bqo2I8wvTbLpXFugOjnJyjr91CbIde4:Mqo2javpkgOjJMr90ge4

Score

10^/10

chaos defense_evasion evasion execution impact ransomware spyware stealer

Malware Config

Extracted

Path

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

Ransom Note

oops your files has been encrypted by the death ransomware to decrypt your files pay us 1 dollar worth of bitcoin to pay the ransom contact [email protected] for more information also good luck trying to recover your files becuase all backups and windows recovery mode has been DELETED!!

Emails

[email protected]

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 2 IoCs

resource	yara_rule
behavioral2/memory/4452-1-0x0000000000A20000-0x0000000000A2C000-memory.dmp	family_chaos
behavioral2/files/0x00070000000233c5-7.dat	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
3376	bcdedit.exe
4272	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
4244	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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	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_me.txt	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3028	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\Contacts\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\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\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\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\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\Admin\Links\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\Saved Games\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Searches\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\Start Menu\Programs\Maintenance\Desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-2412658365-3084825385-3340777666-1000\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\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\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\Documents\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\Libraries\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\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\OneDrive\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\Accessibility\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	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_WDC&PROD_WDS100T2B0A\4&215468A5&0&000000	vds.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName	vds.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_QEMU&PROD_QEMU_DVD-ROM\4&215468A5&0&010000	vds.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\FriendlyName	vds.exe

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
5088	vssadmin.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\Local Settings	svchost.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
4416	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3028	svchost.exe

Suspicious behavior: EnumeratesProcesses 50 IoCs

pid	Process
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
3028	svchost.exe
3028	svchost.exe
3028	svchost.exe
3028	svchost.exe
3028	svchost.exe
3028	svchost.exe
3028	svchost.exe
3028	svchost.exe
3028	svchost.exe
3028	svchost.exe
3028	svchost.exe
3028	svchost.exe
3028	svchost.exe
3028	svchost.exe
3028	svchost.exe
3028	svchost.exe
3028	svchost.exe
3028	svchost.exe
3028	svchost.exe
3028	svchost.exe
3028	svchost.exe
3028	svchost.exe
3028	svchost.exe
3028	svchost.exe

Suspicious use of AdjustPrivilegeToken 50 IoCs

description	pid	Process
Token: SeDebugPrivilege	4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
Token: SeDebugPrivilege	3028	svchost.exe
Token: SeBackupPrivilege	2284	vssvc.exe
Token: SeRestorePrivilege	2284	vssvc.exe
Token: SeAuditPrivilege	2284	vssvc.exe
Token: SeIncreaseQuotaPrivilege	616	WMIC.exe
Token: SeSecurityPrivilege	616	WMIC.exe
Token: SeTakeOwnershipPrivilege	616	WMIC.exe
Token: SeLoadDriverPrivilege	616	WMIC.exe
Token: SeSystemProfilePrivilege	616	WMIC.exe
Token: SeSystemtimePrivilege	616	WMIC.exe
Token: SeProfSingleProcessPrivilege	616	WMIC.exe
Token: SeIncBasePriorityPrivilege	616	WMIC.exe
Token: SeCreatePagefilePrivilege	616	WMIC.exe
Token: SeBackupPrivilege	616	WMIC.exe
Token: SeRestorePrivilege	616	WMIC.exe
Token: SeShutdownPrivilege	616	WMIC.exe
Token: SeDebugPrivilege	616	WMIC.exe
Token: SeSystemEnvironmentPrivilege	616	WMIC.exe
Token: SeRemoteShutdownPrivilege	616	WMIC.exe
Token: SeUndockPrivilege	616	WMIC.exe
Token: SeManageVolumePrivilege	616	WMIC.exe
Token: 33	616	WMIC.exe
Token: 34	616	WMIC.exe
Token: 35	616	WMIC.exe
Token: 36	616	WMIC.exe
Token: SeIncreaseQuotaPrivilege	616	WMIC.exe
Token: SeSecurityPrivilege	616	WMIC.exe
Token: SeTakeOwnershipPrivilege	616	WMIC.exe
Token: SeLoadDriverPrivilege	616	WMIC.exe
Token: SeSystemProfilePrivilege	616	WMIC.exe
Token: SeSystemtimePrivilege	616	WMIC.exe
Token: SeProfSingleProcessPrivilege	616	WMIC.exe
Token: SeIncBasePriorityPrivilege	616	WMIC.exe
Token: SeCreatePagefilePrivilege	616	WMIC.exe
Token: SeBackupPrivilege	616	WMIC.exe
Token: SeRestorePrivilege	616	WMIC.exe
Token: SeShutdownPrivilege	616	WMIC.exe
Token: SeDebugPrivilege	616	WMIC.exe
Token: SeSystemEnvironmentPrivilege	616	WMIC.exe
Token: SeRemoteShutdownPrivilege	616	WMIC.exe
Token: SeUndockPrivilege	616	WMIC.exe
Token: SeManageVolumePrivilege	616	WMIC.exe
Token: 33	616	WMIC.exe
Token: 34	616	WMIC.exe
Token: 35	616	WMIC.exe
Token: 36	616	WMIC.exe
Token: SeBackupPrivilege	4348	wbengine.exe
Token: SeRestorePrivilege	4348	wbengine.exe
Token: SeSecurityPrivilege	4348	wbengine.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4452 wrote to memory of 3028	4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe	94
PID 4452 wrote to memory of 3028	4452	2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe	94
PID 3028 wrote to memory of 1612	3028	svchost.exe	96
PID 3028 wrote to memory of 1612	3028	svchost.exe	96
PID 1612 wrote to memory of 5088	1612	cmd.exe	98
PID 1612 wrote to memory of 5088	1612	cmd.exe	98
PID 1612 wrote to memory of 616	1612	cmd.exe	101
PID 1612 wrote to memory of 616	1612	cmd.exe	101
PID 3028 wrote to memory of 4164	3028	svchost.exe	102
PID 3028 wrote to memory of 4164	3028	svchost.exe	102
PID 4164 wrote to memory of 3376	4164	cmd.exe	104
PID 4164 wrote to memory of 3376	4164	cmd.exe	104
PID 4164 wrote to memory of 4272	4164	cmd.exe	105
PID 4164 wrote to memory of 4272	4164	cmd.exe	105
PID 3028 wrote to memory of 4504	3028	svchost.exe	106
PID 3028 wrote to memory of 4504	3028	svchost.exe	106
PID 4504 wrote to memory of 4244	4504	cmd.exe	108
PID 4504 wrote to memory of 4244	4504	cmd.exe	108
PID 3028 wrote to memory of 4416	3028	svchost.exe	112
PID 3028 wrote to memory of 4416	3028	svchost.exe	112

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\2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-22_fffcec172fd2e908588f098ce331f3e7_chaos_destroyer_wannacry.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4452
- 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)
  - Modifies registry class
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3028
- - 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:1612
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:5088
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:616
- - 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:4164
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:3376
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:4272
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4504
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:4244
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_me.txt
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:4416

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2284

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4348

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:116

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
- Checks SCSI registry key(s)
PID:2812

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

Peripheral Device Discovery

T1120

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
22KB

MD5
fffcec172fd2e908588f098ce331f3e7

SHA1
9846f2ca442cf1080ce104d737f90052fc5592a6

SHA256
91ef0318ac9a10ce0976b29f57ea570b6907cccc92f182f5e916d5273f0b71e3

SHA512
381b0691bb4e8c1bf0e7a4038c320faa112ad4b7d38ae2aa61c362aee7d6eedbb9c351ec5c57577af7081fc1d2c4e4ab756a282f63ba860f70ad3f06f27d9a3d

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

Filesize
298B

MD5
3669239eb64afebca9ff5bdb9a0db42c

SHA1
c79540eb723478d16c3401b05485fd6f985a0e64

SHA256
4fe396b662d198814047593f99571b203b80d8d5e650d0b1ccda26c8ce50cbe8

SHA512
7ec0b8fabd4d78b8a4a35f798a2f3531136deb4475c30a95acc0d5c7179ad229ed0c4a600a01ec5574f6530a83782494683008da2e10815e34e264afdd994518

Download Submit
memory/3028-15-0x00007FF9E7690000-0x00007FF9E8151000-memory.dmp

Filesize
10.8MB

Download
memory/3028-426-0x00007FF9E7690000-0x00007FF9E8151000-memory.dmp

Filesize
10.8MB

Download
memory/4452-0-0x00007FF9E7693000-0x00007FF9E7695000-memory.dmp

Filesize
8KB

Download
memory/4452-1-0x0000000000A20000-0x0000000000A2C000-memory.dmp

Filesize
48KB

Download
memory/4452-2-0x00007FF9E7693000-0x00007FF9E7695000-memory.dmp

Filesize
8KB

Download