chaos | f4936bda6829b612f548ad3b1ef4c0155506e54d49535aa7cf48dba6d110be26

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16-02-2025 21:26

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General

Target

2025-02-16_e191b299fdbebe6c1351e5b0eb2b9b9e_destroyer_wannacry.exe
Size

53KB
MD5

e191b299fdbebe6c1351e5b0eb2b9b9e
SHA1

c3f6a7a11536132e3a215ced4384734b53dbbdc4
SHA256

f4936bda6829b612f548ad3b1ef4c0155506e54d49535aa7cf48dba6d110be26
SHA512

bc38c992adf1110921705d6fdef4b5b2749c9486687e6b7c3a595f4b5e897a55d452fce0637a2572e18a4ddf83a4f6a5e6c0c013983bf940904d5b6046b5021f
SSDEEP

1536:y3kIyVVWBr9S9qzUY7VWzXyFDyKs9lgU3qz+h:y3kZWBr9S9qzUYxcyFs3qz+h

Score

10^/10

chaos defense_evasion evasion execution impact ransomware spyware stealer

Malware Config

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/2912-1-0x00000000012E0000-0x00000000012F4000-memory.dmp	family_chaos
behavioral1/files/0x000700000001211a-5.dat	family_chaos
behavioral1/memory/2764-7-0x0000000000B00000-0x0000000000B14000-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
1316	bcdedit.exe
744	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
776	wbadmin.exe

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\windows.url	windows.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini	windows.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\readmelol.txt	windows.exe

Executes dropped EXE 1 IoCs

pid	Process
2764	windows.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\Links\desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	windows.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	windows.exe
File opened for modification	C:\Users\Public\Pictures\Sample Pictures\desktop.ini	windows.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	windows.exe
File opened for modification	C:\Users\Public\Videos\Sample Videos\desktop.ini	windows.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini	windows.exe
File opened for modification	C:\Users\Public\Music\Sample Music\desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	windows.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini	windows.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-1846800975-3917212583-2893086201-1000\desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\Favorites\Links for United States\desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini	windows.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	windows.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	windows.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-1-5-21-1846800975-3917212583-2893086201-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\qsxz8opxt.jpg"	windows.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
2752	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
940	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2764	windows.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2912	2025-02-16_e191b299fdbebe6c1351e5b0eb2b9b9e_destroyer_wannacry.exe
2912	2025-02-16_e191b299fdbebe6c1351e5b0eb2b9b9e_destroyer_wannacry.exe
2764	windows.exe
2764	windows.exe
2764	windows.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	2912	2025-02-16_e191b299fdbebe6c1351e5b0eb2b9b9e_destroyer_wannacry.exe
Token: SeDebugPrivilege	2764	windows.exe
Token: SeBackupPrivilege	2604	vssvc.exe
Token: SeRestorePrivilege	2604	vssvc.exe
Token: SeAuditPrivilege	2604	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1680	WMIC.exe
Token: SeSecurityPrivilege	1680	WMIC.exe
Token: SeTakeOwnershipPrivilege	1680	WMIC.exe
Token: SeLoadDriverPrivilege	1680	WMIC.exe
Token: SeSystemProfilePrivilege	1680	WMIC.exe
Token: SeSystemtimePrivilege	1680	WMIC.exe
Token: SeProfSingleProcessPrivilege	1680	WMIC.exe
Token: SeIncBasePriorityPrivilege	1680	WMIC.exe
Token: SeCreatePagefilePrivilege	1680	WMIC.exe
Token: SeBackupPrivilege	1680	WMIC.exe
Token: SeRestorePrivilege	1680	WMIC.exe
Token: SeShutdownPrivilege	1680	WMIC.exe
Token: SeDebugPrivilege	1680	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1680	WMIC.exe
Token: SeRemoteShutdownPrivilege	1680	WMIC.exe
Token: SeUndockPrivilege	1680	WMIC.exe
Token: SeManageVolumePrivilege	1680	WMIC.exe
Token: 33	1680	WMIC.exe
Token: 34	1680	WMIC.exe
Token: 35	1680	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1680	WMIC.exe
Token: SeSecurityPrivilege	1680	WMIC.exe
Token: SeTakeOwnershipPrivilege	1680	WMIC.exe
Token: SeLoadDriverPrivilege	1680	WMIC.exe
Token: SeSystemProfilePrivilege	1680	WMIC.exe
Token: SeSystemtimePrivilege	1680	WMIC.exe
Token: SeProfSingleProcessPrivilege	1680	WMIC.exe
Token: SeIncBasePriorityPrivilege	1680	WMIC.exe
Token: SeCreatePagefilePrivilege	1680	WMIC.exe
Token: SeBackupPrivilege	1680	WMIC.exe
Token: SeRestorePrivilege	1680	WMIC.exe
Token: SeShutdownPrivilege	1680	WMIC.exe
Token: SeDebugPrivilege	1680	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1680	WMIC.exe
Token: SeRemoteShutdownPrivilege	1680	WMIC.exe
Token: SeUndockPrivilege	1680	WMIC.exe
Token: SeManageVolumePrivilege	1680	WMIC.exe
Token: 33	1680	WMIC.exe
Token: 34	1680	WMIC.exe
Token: 35	1680	WMIC.exe
Token: SeBackupPrivilege	2936	wbengine.exe
Token: SeRestorePrivilege	2936	wbengine.exe
Token: SeSecurityPrivilege	2936	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2912 wrote to memory of 2764	2912	2025-02-16_e191b299fdbebe6c1351e5b0eb2b9b9e_destroyer_wannacry.exe	28
PID 2912 wrote to memory of 2764	2912	2025-02-16_e191b299fdbebe6c1351e5b0eb2b9b9e_destroyer_wannacry.exe	28
PID 2912 wrote to memory of 2764	2912	2025-02-16_e191b299fdbebe6c1351e5b0eb2b9b9e_destroyer_wannacry.exe	28
PID 2764 wrote to memory of 2664	2764	windows.exe	29
PID 2764 wrote to memory of 2664	2764	windows.exe	29
PID 2764 wrote to memory of 2664	2764	windows.exe	29
PID 2664 wrote to memory of 2752	2664	cmd.exe	31
PID 2664 wrote to memory of 2752	2664	cmd.exe	31
PID 2664 wrote to memory of 2752	2664	cmd.exe	31
PID 2664 wrote to memory of 1680	2664	cmd.exe	35
PID 2664 wrote to memory of 1680	2664	cmd.exe	35
PID 2664 wrote to memory of 1680	2664	cmd.exe	35
PID 2764 wrote to memory of 264	2764	windows.exe	37
PID 2764 wrote to memory of 264	2764	windows.exe	37
PID 2764 wrote to memory of 264	2764	windows.exe	37
PID 264 wrote to memory of 1316	264	cmd.exe	39
PID 264 wrote to memory of 1316	264	cmd.exe	39
PID 264 wrote to memory of 1316	264	cmd.exe	39
PID 264 wrote to memory of 744	264	cmd.exe	40
PID 264 wrote to memory of 744	264	cmd.exe	40
PID 264 wrote to memory of 744	264	cmd.exe	40
PID 2764 wrote to memory of 924	2764	windows.exe	41
PID 2764 wrote to memory of 924	2764	windows.exe	41
PID 2764 wrote to memory of 924	2764	windows.exe	41
PID 924 wrote to memory of 776	924	cmd.exe	43
PID 924 wrote to memory of 776	924	cmd.exe	43
PID 924 wrote to memory of 776	924	cmd.exe	43
PID 2764 wrote to memory of 940	2764	windows.exe	47
PID 2764 wrote to memory of 940	2764	windows.exe	47
PID 2764 wrote to memory of 940	2764	windows.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\2025-02-16_e191b299fdbebe6c1351e5b0eb2b9b9e_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-16_e191b299fdbebe6c1351e5b0eb2b9b9e_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Users\Admin\AppData\Roaming\windows.exe
  "C:\Users\Admin\AppData\Roaming\windows.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:2764
- - 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:2664
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:2752
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:1680
- - 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:264
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1316
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:744
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:924
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:776
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\readmelol.txt
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:940

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2604

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2936

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:2784

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:2980

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\windows.exe

Filesize
53KB

MD5
e191b299fdbebe6c1351e5b0eb2b9b9e

SHA1
c3f6a7a11536132e3a215ced4384734b53dbbdc4

SHA256
f4936bda6829b612f548ad3b1ef4c0155506e54d49535aa7cf48dba6d110be26

SHA512
bc38c992adf1110921705d6fdef4b5b2749c9486687e6b7c3a595f4b5e897a55d452fce0637a2572e18a4ddf83a4f6a5e6c0c013983bf940904d5b6046b5021f

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

Filesize
81B

MD5
a8dcf6d631fc8a1a740027c1b2f517f5

SHA1
37718a8f0f3bd1e1d8005cda5ff664e8b7f70c5e

SHA256
e67d1f1f60685b8d83a09bf1ab54d18891e08b3b0bb63ce3bc9b8a3b08a5a565

SHA512
d06ad32ee8a68b938cc42352ae2c3f50e24291411da5c1f95d1e4aaab767f8c6ce0b75d87bb4f04cbb70fc6074b231a300d32a074f65bbb39c89ee84b9ae7050

Download Submit
memory/2764-7-0x0000000000B00000-0x0000000000B14000-memory.dmp

Filesize
80KB

Download
memory/2764-76-0x000007FEF4B90000-0x000007FEF557C000-memory.dmp

Filesize
9.9MB

Download
memory/2764-77-0x000007FEF4B93000-0x000007FEF4B94000-memory.dmp

Filesize
4KB

Download
memory/2764-78-0x000007FEF4B90000-0x000007FEF557C000-memory.dmp

Filesize
9.9MB

Download
memory/2912-0-0x000007FEF5583000-0x000007FEF5584000-memory.dmp

Filesize
4KB

Download
memory/2912-1-0x00000000012E0000-0x00000000012F4000-memory.dmp

Filesize
80KB

Download