chaos | 2ae0114b275fb3265f2b1ac163a05fc8803106db50f239b0bdc3ff791e715dce

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-09-2024 05:25

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General

Target

2024-09-12_2d01a94e556951d680b7fb8dd34bef09_destroyer_wannacry.exe
Size

51KB
MD5

2d01a94e556951d680b7fb8dd34bef09
SHA1

9d52a38798008b753e9cc9c891fd6a767c352dee
SHA256

2ae0114b275fb3265f2b1ac163a05fc8803106db50f239b0bdc3ff791e715dce
SHA512

06250996597e518e8655bf7c159ee0b7786d80430ffd2bf85f40e31f81a695101dc128e6b6cd71efb7de27f43ec64ca7c83286f334cb422460fac0bc60ec452f
SSDEEP

1536:gNo0rEkq9g7QRjUAaXeUAt63ePtBlRqAWYTW4:vkq9g7Q1U/oiePRRqRW

Score

10^/10

chaos discovery evasion persistence 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/2112-1-0x0000000000E20000-0x0000000000E34000-memory.dmp	family_chaos
behavioral1/files/0x000a0000000122ce-6.dat	family_chaos
behavioral1/memory/2920-8-0x0000000000370000-0x0000000000384000-memory.dmp	family_chaos

Disables Task Manager via registry modification
evasion

Drops startup file 2 IoCs

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

Executes dropped EXE 4 IoCs

pid	Process
2920	cmd.exe
2876	cmd.exe
3040	cmd.exe
640	cmd.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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\UpdateTask = "C:\\Users\\Admin\\AppData\\Roaming\\cmd.exe"	cmd.exe

Drops desktop.ini file(s) 64 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\Desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini	cmd.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	cmd.exe
File opened for modification	C:\Users\Public\Downloads\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\R627XHFP\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\YPLB435F\desktop.ini	cmd.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	cmd.exe
File opened for modification	C:\Users\Public\Music\Sample Music\desktop.ini	cmd.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Ringtones\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\History\History.IE5\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\desktop.ini	cmd.exe
File opened for modification	C:\Users\Public\Recorded TV\Sample Media\desktop.ini	cmd.exe
File opened for modification	C:\Users\Public\Videos\Sample Videos\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	cmd.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\U8F4PBMO\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	cmd.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\OM66BHWE\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini	cmd.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-312935884-697965778-3955649944-1000\desktop.ini	cmd.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	cmd.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Games\Desktop.ini	cmd.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	cmd.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	cmd.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\desktop.ini	cmd.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\4DY23DRT\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\CUMHXU73\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	cmd.exe
File opened for modification	C:\Users\Public\Libraries\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\T072YXIW\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	cmd.exe
File opened for modification	C:\Users\Public\Recorded TV\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\Favorites\Links for United States\desktop.ini	cmd.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini	cmd.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	cmd.exe
File opened for modification	C:\Users\Public\desktop.ini	cmd.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	cmd.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\98Y29LGS\desktop.ini	cmd.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Tablet PC\Desktop.ini	cmd.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\History\desktop.ini	cmd.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	cmd.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	cmd.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	cmd.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	cmd.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-1-5-21-312935884-697965778-3955649944-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9vde3y0qo.jpg"	cmd.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
2920	cmd.exe
3040	cmd.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2112	2024-09-12_2d01a94e556951d680b7fb8dd34bef09_destroyer_wannacry.exe
2112	2024-09-12_2d01a94e556951d680b7fb8dd34bef09_destroyer_wannacry.exe
2112	2024-09-12_2d01a94e556951d680b7fb8dd34bef09_destroyer_wannacry.exe
2920	cmd.exe
2920	cmd.exe
2920	cmd.exe
2876	cmd.exe
3040	cmd.exe
640	cmd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2076	AcroRd32.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2112	2024-09-12_2d01a94e556951d680b7fb8dd34bef09_destroyer_wannacry.exe
Token: SeDebugPrivilege	2920	cmd.exe
Token: SeDebugPrivilege	2876	cmd.exe
Token: SeDebugPrivilege	3040	cmd.exe
Token: SeDebugPrivilege	640	cmd.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2076	AcroRd32.exe
2076	AcroRd32.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2920	2112	2024-09-12_2d01a94e556951d680b7fb8dd34bef09_destroyer_wannacry.exe	31
PID 2112 wrote to memory of 2920	2112	2024-09-12_2d01a94e556951d680b7fb8dd34bef09_destroyer_wannacry.exe	31
PID 2112 wrote to memory of 2920	2112	2024-09-12_2d01a94e556951d680b7fb8dd34bef09_destroyer_wannacry.exe	31
PID 2920 wrote to memory of 2876	2920	cmd.exe	32
PID 2920 wrote to memory of 2876	2920	cmd.exe	32
PID 2920 wrote to memory of 2876	2920	cmd.exe	32
PID 2920 wrote to memory of 3040	2920	cmd.exe	33
PID 2920 wrote to memory of 3040	2920	cmd.exe	33
PID 2920 wrote to memory of 3040	2920	cmd.exe	33
PID 2920 wrote to memory of 640	2920	cmd.exe	34
PID 2920 wrote to memory of 640	2920	cmd.exe	34
PID 2920 wrote to memory of 640	2920	cmd.exe	34
PID 2920 wrote to memory of 2336	2920	cmd.exe	35
PID 2920 wrote to memory of 2336	2920	cmd.exe	35
PID 2920 wrote to memory of 2336	2920	cmd.exe	35
PID 2336 wrote to memory of 2076	2336	rundll32.exe	37
PID 2336 wrote to memory of 2076	2336	rundll32.exe	37
PID 2336 wrote to memory of 2076	2336	rundll32.exe	37
PID 2336 wrote to memory of 2076	2336	rundll32.exe	37

C:\Users\Admin\AppData\Local\Temp\2024-09-12_2d01a94e556951d680b7fb8dd34bef09_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-12_2d01a94e556951d680b7fb8dd34bef09_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Users\Admin\AppData\Roaming\cmd.exe
  "C:\Users\Admin\AppData\Roaming\cmd.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - 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:2920
- - C:\Users\Admin\AppData\Roaming\cmd.exe
    "C:\Users\Admin\AppData\Roaming\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2876
- - C:\Users\Admin\AppData\Roaming\cmd.exe
    "C:\Users\Admin\AppData\Roaming\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: AddClipboardFormatListener
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3040
- - C:\Users\Admin\AppData\Roaming\cmd.exe
    "C:\Users\Admin\AppData\Roaming\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:640
- - C:\Windows\system32\rundll32.exe
    "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Pwned
    3⤵
    - Modifies registry class
    - Suspicious use of WriteProcessMemory
    PID:2336
  - - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
      "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Pwned"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of SetWindowsHookEx
      PID:2076

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
a50674d93e981553d1e9f4311425ef0c

SHA1
cdbeb2d1ecb7621047d8ce6fa42c671ad7a37e06

SHA256
e9fa9bec901a1f95cf13f50d423c8ce70ee2bc20dc34cb7b52d23c8e497ff985

SHA512
8be689390f67f44faf6713194fedc413b736e4c63065222de44fbfd41255f01675f12104f424c7f3c68767bbd075a8255fa2c72b4d188d9a1755bd3c6f92c2f2

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

Filesize
51KB

MD5
2d01a94e556951d680b7fb8dd34bef09

SHA1
9d52a38798008b753e9cc9c891fd6a767c352dee

SHA256
2ae0114b275fb3265f2b1ac163a05fc8803106db50f239b0bdc3ff791e715dce

SHA512
06250996597e518e8655bf7c159ee0b7786d80430ffd2bf85f40e31f81a695101dc128e6b6cd71efb7de27f43ec64ca7c83286f334cb422460fac0bc60ec452f

Download Submit
C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\Pwned

Filesize
26B

MD5
3b736b373834b9c3ddddcbe1dee915af

SHA1
f80a6ae7503635fb20563031586b9c5512f16852

SHA256
173634a589ddc1a07213f4a0ed4b1bbf16f65d3790e7001137d7f3a80d63be16

SHA512
8ee574d0d9690ca66bb4934ea02914eb82c0f7bf93c8394cbd2a6110067eef1af323ca56ada06f17eb10793801844992ec34cb6fd2312cb9d31a85414fd9cf74

Download Submit
C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Notepad.lnk

Filesize
1B

MD5
d1457b72c3fb323a2671125aef3eab5d

SHA1
5bab61eb53176449e25c2c82f172b82cb13ffb9d

SHA256
8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

SHA512
ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

Download Submit
memory/2112-0-0x000007FEF6623000-0x000007FEF6624000-memory.dmp

Filesize
4KB

Download
memory/2112-1-0x0000000000E20000-0x0000000000E34000-memory.dmp

Filesize
80KB

Download
memory/2112-2-0x000007FEF6620000-0x000007FEF700C000-memory.dmp

Filesize
9.9MB

Download
memory/2112-12-0x000007FEF6620000-0x000007FEF700C000-memory.dmp

Filesize
9.9MB

Download
memory/2920-8-0x0000000000370000-0x0000000000384000-memory.dmp

Filesize
80KB

Download
memory/2920-9-0x000007FEF6620000-0x000007FEF700C000-memory.dmp

Filesize
9.9MB

Download
memory/2920-10-0x000007FEF6620000-0x000007FEF700C000-memory.dmp

Filesize
9.9MB

Download
memory/2920-978-0x000007FEF6620000-0x000007FEF700C000-memory.dmp

Filesize
9.9MB

Download