chaos | 25fba19a79ca6ef0c1f8b092c8f6e0cb4ac91239089b2764f73bf59c29a544ef

Analysis

max time kernel
27s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22-02-2025 01:23

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General

Target

2025-02-22_0772d9df47836609fbfdd95ce144b683_wannacry.exe
Size

117KB
MD5

0772d9df47836609fbfdd95ce144b683
SHA1

2cfe3bebd9c1eda6f8478dd6f8271b42ddcba7c6
SHA256

25fba19a79ca6ef0c1f8b092c8f6e0cb4ac91239089b2764f73bf59c29a544ef
SHA512

86631a262c35324091fdbbffc5499b60b69d37b41496bd8b52fe85355c97ca07f6005e02eef4244622b4dd7659c9effa560e5ca3afb4f0f98ed2d3af6b062b86
SSDEEP

3072:1oyESEKr9zTg9RUa2WgSEBYBEHgX0oz15WXf:XNr9zToN2WfNX0ozvq

Score

10^/10

chaos hawkeye defense_evasion evasion execution impact keylogger ransomware spyware stealer trojan

Malware Config

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/2280-1-0x0000000000B40000-0x0000000000B62000-memory.dmp	family_chaos
behavioral1/files/0x000900000001227e-5.dat	family_chaos
behavioral1/memory/2772-7-0x0000000000080000-0x00000000000A2000-memory.dmp	family_chaos

Chaos family
chaos
HawkEye
HawkEye is a malware kit that has seen continuous development since at least 2013.
keylogger trojan stealer spyware hawkeye
Hawkeye family
hawkeye
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
1900	bcdedit.exe
456	bcdedit.exe

Renames multiple (216) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

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
1696	wbadmin.exe

Drops startup file 3 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
2772	windowsupdate.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\Public\Pictures\Sample Pictures\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	windowsupdate.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-3692679935-4019334568-335155002-1000\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Public\Music\Sample Music\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Public\Videos\Sample Videos\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\Favorites\Links for United States\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	windowsupdate.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	windowsupdate.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-1-5-21-3692679935-4019334568-335155002-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\hyce6av3p.jpg"	windowsupdate.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
1908	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
2636	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2772	windowsupdate.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2280	2025-02-22_0772d9df47836609fbfdd95ce144b683_wannacry.exe
2772	windowsupdate.exe
2772	windowsupdate.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	2280	2025-02-22_0772d9df47836609fbfdd95ce144b683_wannacry.exe
Token: SeDebugPrivilege	2772	windowsupdate.exe
Token: SeBackupPrivilege	2204	vssvc.exe
Token: SeRestorePrivilege	2204	vssvc.exe
Token: SeAuditPrivilege	2204	vssvc.exe
Token: SeIncreaseQuotaPrivilege	2216	WMIC.exe
Token: SeSecurityPrivilege	2216	WMIC.exe
Token: SeTakeOwnershipPrivilege	2216	WMIC.exe
Token: SeLoadDriverPrivilege	2216	WMIC.exe
Token: SeSystemProfilePrivilege	2216	WMIC.exe
Token: SeSystemtimePrivilege	2216	WMIC.exe
Token: SeProfSingleProcessPrivilege	2216	WMIC.exe
Token: SeIncBasePriorityPrivilege	2216	WMIC.exe
Token: SeCreatePagefilePrivilege	2216	WMIC.exe
Token: SeBackupPrivilege	2216	WMIC.exe
Token: SeRestorePrivilege	2216	WMIC.exe
Token: SeShutdownPrivilege	2216	WMIC.exe
Token: SeDebugPrivilege	2216	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2216	WMIC.exe
Token: SeRemoteShutdownPrivilege	2216	WMIC.exe
Token: SeUndockPrivilege	2216	WMIC.exe
Token: SeManageVolumePrivilege	2216	WMIC.exe
Token: 33	2216	WMIC.exe
Token: 34	2216	WMIC.exe
Token: 35	2216	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2216	WMIC.exe
Token: SeSecurityPrivilege	2216	WMIC.exe
Token: SeTakeOwnershipPrivilege	2216	WMIC.exe
Token: SeLoadDriverPrivilege	2216	WMIC.exe
Token: SeSystemProfilePrivilege	2216	WMIC.exe
Token: SeSystemtimePrivilege	2216	WMIC.exe
Token: SeProfSingleProcessPrivilege	2216	WMIC.exe
Token: SeIncBasePriorityPrivilege	2216	WMIC.exe
Token: SeCreatePagefilePrivilege	2216	WMIC.exe
Token: SeBackupPrivilege	2216	WMIC.exe
Token: SeRestorePrivilege	2216	WMIC.exe
Token: SeShutdownPrivilege	2216	WMIC.exe
Token: SeDebugPrivilege	2216	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2216	WMIC.exe
Token: SeRemoteShutdownPrivilege	2216	WMIC.exe
Token: SeUndockPrivilege	2216	WMIC.exe
Token: SeManageVolumePrivilege	2216	WMIC.exe
Token: 33	2216	WMIC.exe
Token: 34	2216	WMIC.exe
Token: 35	2216	WMIC.exe
Token: SeBackupPrivilege	1528	wbengine.exe
Token: SeRestorePrivilege	1528	wbengine.exe
Token: SeSecurityPrivilege	1528	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 2772	2280	2025-02-22_0772d9df47836609fbfdd95ce144b683_wannacry.exe	29
PID 2280 wrote to memory of 2772	2280	2025-02-22_0772d9df47836609fbfdd95ce144b683_wannacry.exe	29
PID 2280 wrote to memory of 2772	2280	2025-02-22_0772d9df47836609fbfdd95ce144b683_wannacry.exe	29
PID 2772 wrote to memory of 1976	2772	windowsupdate.exe	32
PID 2772 wrote to memory of 1976	2772	windowsupdate.exe	32
PID 2772 wrote to memory of 1976	2772	windowsupdate.exe	32
PID 1976 wrote to memory of 1908	1976	cmd.exe	34
PID 1976 wrote to memory of 1908	1976	cmd.exe	34
PID 1976 wrote to memory of 1908	1976	cmd.exe	34
PID 1976 wrote to memory of 2216	1976	cmd.exe	37
PID 1976 wrote to memory of 2216	1976	cmd.exe	37
PID 1976 wrote to memory of 2216	1976	cmd.exe	37
PID 2772 wrote to memory of 1536	2772	windowsupdate.exe	39
PID 2772 wrote to memory of 1536	2772	windowsupdate.exe	39
PID 2772 wrote to memory of 1536	2772	windowsupdate.exe	39
PID 1536 wrote to memory of 1900	1536	cmd.exe	41
PID 1536 wrote to memory of 1900	1536	cmd.exe	41
PID 1536 wrote to memory of 1900	1536	cmd.exe	41
PID 1536 wrote to memory of 456	1536	cmd.exe	42
PID 1536 wrote to memory of 456	1536	cmd.exe	42
PID 1536 wrote to memory of 456	1536	cmd.exe	42
PID 2772 wrote to memory of 1460	2772	windowsupdate.exe	43
PID 2772 wrote to memory of 1460	2772	windowsupdate.exe	43
PID 2772 wrote to memory of 1460	2772	windowsupdate.exe	43
PID 1460 wrote to memory of 1696	1460	cmd.exe	45
PID 1460 wrote to memory of 1696	1460	cmd.exe	45
PID 1460 wrote to memory of 1696	1460	cmd.exe	45
PID 2772 wrote to memory of 2636	2772	windowsupdate.exe	49
PID 2772 wrote to memory of 2636	2772	windowsupdate.exe	49
PID 2772 wrote to memory of 2636	2772	windowsupdate.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\2025-02-22_0772d9df47836609fbfdd95ce144b683_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-22_0772d9df47836609fbfdd95ce144b683_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Users\Admin\AppData\Roaming\windowsupdate.exe
  "C:\Users\Admin\AppData\Roaming\windowsupdate.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:2772
- - 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:1976
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:1908
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:2216
- - 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:1536
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1900
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:456
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1460
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:1696
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\FUCKED.txt
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:2636

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2204

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1528

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:368

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:2040

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\windowsupdate.exe

Filesize
117KB

MD5
0772d9df47836609fbfdd95ce144b683

SHA1
2cfe3bebd9c1eda6f8478dd6f8271b42ddcba7c6

SHA256
25fba19a79ca6ef0c1f8b092c8f6e0cb4ac91239089b2764f73bf59c29a544ef

SHA512
86631a262c35324091fdbbffc5499b60b69d37b41496bd8b52fe85355c97ca07f6005e02eef4244622b4dd7659c9effa560e5ca3afb4f0f98ed2d3af6b062b86

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

Filesize
185B

MD5
1fe92582c3080f8677f0b72c7d011d88

SHA1
f3fad646a2a205dd5646014e3e86e0eff25aedb0

SHA256
3fafb5fad577d0436f3f59ead7b124fc6ab80512fb7e9e88960ce6f384fb1312

SHA512
3d5d5be6e3ad4bef75cf532782bd1c616642a2bda1241c4eb310309e73a2109a0215188819e00e1fe7d7fa0141781b22d5a124e96f11aa75104bbad637d2f6d9

Download Submit
memory/2280-0-0x000007FEF65A3000-0x000007FEF65A4000-memory.dmp

Filesize
4KB

Download
memory/2280-1-0x0000000000B40000-0x0000000000B62000-memory.dmp

Filesize
136KB

Download
memory/2772-7-0x0000000000080000-0x00000000000A2000-memory.dmp

Filesize
136KB

Download
memory/2772-12-0x000007FEF65A0000-0x000007FEF6F8C000-memory.dmp

Filesize
9.9MB

Download
memory/2772-14-0x000007FEF65A0000-0x000007FEF6F8C000-memory.dmp

Filesize
9.9MB

Download
memory/2772-483-0x000007FEF65A0000-0x000007FEF6F8C000-memory.dmp

Filesize
9.9MB

Download
memory/2772-493-0x000007FEF65A0000-0x000007FEF6F8C000-memory.dmp

Filesize
9.9MB

Download