chaos | 1512810ee7380778dff64705a8b0760fd11403eae4d0f98f7cfdd6b2b57a10af

Analysis

max time kernel
25s
max time network
27s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
24-04-2024 15:06

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General

Target

1234.exe
Size

23KB
MD5

56db115b1910067cb1011b55d4d0763d
SHA1

37672ddd4bf1deaaf8aff7fbdaad8455170b3033
SHA256

1512810ee7380778dff64705a8b0760fd11403eae4d0f98f7cfdd6b2b57a10af
SHA512

30120552efb26292d5058ccffa50efa7b6e5f509edacbb12e1becdd04935ac211c9fb23433ea1a8c33682f326791bdab4ede714a5d7fcd49638fab181367e0ec
SSDEEP

384:z3MLWHn3kIjf7SxlR2/p5b14+CDJyr91Czxb5YeG:/n3kIP64pR14+6yr9ixbueG

Score

10^/10

chaos ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\read_it.txt

Family

chaos

Ransom Note

----> Chaos is multi language ransomware. Translate your note to any language <---- All of your files have been encrypted Your computer was infected with a ransomware virus. Your files have been encrypted and you won't be able to decrypt them without our help.What can I do to get my files back?You can buy our special decryption software, this software will allow you to recover all of your data and remove the ransomware from your computer.The price for the software is $1,500. Payment can be made in Bitcoin only. How do I pay, where do I get Bitcoin? Purchasing Bitcoin varies from country to country, you are best advised to do a quick google search yourself to find out how to buy Bitcoin. Many of our customers have reported these sites to be fast and reliable: Coinmama - hxxps://www.coinmama.com Bitpanda - hxxps://www.bitpanda.com Payment informationAmount: 0.1473766 BTC Bitcoin Address: bc1qlnzcep4l4ac0ttdrq7awxev9ehu465f2vpt9x0

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 2 IoCs

resource	yara_rule
behavioral1/memory/2676-0-0x00000000003D0000-0x00000000003DC000-memory.dmp	family_chaos
behavioral1/files/0x000800000001ac18-5.dat	family_chaos

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_it.txt	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2548	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) 35 IoCs

description	ioc	Process
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-4106386276-4127174233-3637007343-1000\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\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\OneDrive\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\AccountPictures\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Windows PowerShell\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\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\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Documents\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\Music\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\Recent\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\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	C:\Users\Admin\Pictures\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\System Tools\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\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\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\Accessibility\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	svchost.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4106386276-4127174233-3637007343-1000_Classes\Local Settings	svchost.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
2540	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 3 IoCs

pid	Process
2548	svchost.exe
820	WINWORD.EXE
820	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 33 IoCs

pid	Process
2676	1234.exe
2676	1234.exe
2676	1234.exe
2676	1234.exe
2676	1234.exe
2676	1234.exe
2676	1234.exe
2676	1234.exe
2676	1234.exe
2676	1234.exe
2676	1234.exe
2676	1234.exe
2676	1234.exe
2676	1234.exe
2676	1234.exe
2548	svchost.exe
2548	svchost.exe
2548	svchost.exe
2548	svchost.exe
2548	svchost.exe
2548	svchost.exe
2548	svchost.exe
2548	svchost.exe
2548	svchost.exe
2548	svchost.exe
2548	svchost.exe
2548	svchost.exe
2548	svchost.exe
2548	svchost.exe
2548	svchost.exe
2548	svchost.exe
2548	svchost.exe
2548	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2676	1234.exe
Token: SeDebugPrivilege	2548	svchost.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
820	WINWORD.EXE
820	WINWORD.EXE
820	WINWORD.EXE
820	WINWORD.EXE
820	WINWORD.EXE
820	WINWORD.EXE
820	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2676 wrote to memory of 2548	2676	1234.exe	74
PID 2676 wrote to memory of 2548	2676	1234.exe	74
PID 2548 wrote to memory of 2540	2548	svchost.exe	75
PID 2548 wrote to memory of 2540	2548	svchost.exe	75

C:\Users\Admin\AppData\Local\Temp\1234.exe
"C:\Users\Admin\AppData\Local\Temp\1234.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2676
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - 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:2548
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:2540

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\Documents\Files.docx" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

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

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\index.dat

Filesize
223B

MD5
0089a450ac0d5daa3adf503ff0a4729a

SHA1
d0878bd92572f94d86b116f9bf0b14fe8732ebdb

SHA256
475bc454dd4fe83f3039ff97e98878dcb591ce8605b4d4c171775ed6bd392850

SHA512
458edb0f29f7e7d92dfb46981a59d8ff3a9c47ab2f09077000ef03ad063ebb94361adfddeb1e5dbc3857e6c639559bf1a14968ac905fd1d3756bfb786fd362b0

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

Filesize
23KB

MD5
56db115b1910067cb1011b55d4d0763d

SHA1
37672ddd4bf1deaaf8aff7fbdaad8455170b3033

SHA256
1512810ee7380778dff64705a8b0760fd11403eae4d0f98f7cfdd6b2b57a10af

SHA512
30120552efb26292d5058ccffa50efa7b6e5f509edacbb12e1becdd04935ac211c9fb23433ea1a8c33682f326791bdab4ede714a5d7fcd49638fab181367e0ec

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

Filesize
964B

MD5
4217b8b83ce3c3f70029a056546f8fd0

SHA1
487cdb5733d073a0427418888e8f7070fe782a03

SHA256
7d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121

SHA512
2a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740

Download Submit
memory/820-71-0x00007FFA6A7B0000-0x00007FFA6A98B000-memory.dmp

Filesize
1.9MB

Download
memory/820-74-0x00007FFA6A7B0000-0x00007FFA6A98B000-memory.dmp

Filesize
1.9MB

Download
memory/820-87-0x00007FFA27580000-0x00007FFA27590000-memory.dmp

Filesize
64KB

Download
memory/820-86-0x00007FFA6A7B0000-0x00007FFA6A98B000-memory.dmp

Filesize
1.9MB

Download
memory/820-65-0x00007FFA6A7B0000-0x00007FFA6A98B000-memory.dmp

Filesize
1.9MB

Download
memory/820-64-0x00007FFA2A840000-0x00007FFA2A850000-memory.dmp

Filesize
64KB

Download
memory/820-67-0x00007FFA6A7B0000-0x00007FFA6A98B000-memory.dmp

Filesize
1.9MB

Download
memory/820-66-0x00007FFA2A840000-0x00007FFA2A850000-memory.dmp

Filesize
64KB

Download
memory/820-68-0x00007FFA6A7B0000-0x00007FFA6A98B000-memory.dmp

Filesize
1.9MB

Download
memory/820-69-0x00007FFA2A840000-0x00007FFA2A850000-memory.dmp

Filesize
64KB

Download
memory/820-70-0x00007FFA2A840000-0x00007FFA2A850000-memory.dmp

Filesize
64KB

Download
memory/820-84-0x00007FFA27580000-0x00007FFA27590000-memory.dmp

Filesize
64KB

Download
memory/820-72-0x00007FFA6A7B0000-0x00007FFA6A98B000-memory.dmp

Filesize
1.9MB

Download
memory/820-83-0x00007FFA6A100000-0x00007FFA6A1AE000-memory.dmp

Filesize
696KB

Download
memory/820-73-0x00007FFA6A7B0000-0x00007FFA6A98B000-memory.dmp

Filesize
1.9MB

Download
memory/820-75-0x00007FFA6A100000-0x00007FFA6A1AE000-memory.dmp

Filesize
696KB

Download
memory/820-77-0x00007FFA6A7B0000-0x00007FFA6A98B000-memory.dmp

Filesize
1.9MB

Download
memory/820-79-0x00007FFA6A7B0000-0x00007FFA6A98B000-memory.dmp

Filesize
1.9MB

Download
memory/820-80-0x00007FFA6A7B0000-0x00007FFA6A98B000-memory.dmp

Filesize
1.9MB

Download
memory/820-81-0x00007FFA6A7B0000-0x00007FFA6A98B000-memory.dmp

Filesize
1.9MB

Download
memory/820-82-0x00007FFA6A7B0000-0x00007FFA6A98B000-memory.dmp

Filesize
1.9MB

Download
memory/2548-9-0x00007FFA5EE10000-0x00007FFA5F7FC000-memory.dmp

Filesize
9.9MB

Download
memory/2548-85-0x00007FFA5EE10000-0x00007FFA5F7FC000-memory.dmp

Filesize
9.9MB

Download
memory/2548-62-0x000000001BF00000-0x000000001C000000-memory.dmp

Filesize
1024KB

Download
memory/2548-304-0x000000001BF00000-0x000000001C000000-memory.dmp

Filesize
1024KB

Download
memory/2676-0-0x00000000003D0000-0x00000000003DC000-memory.dmp

Filesize
48KB

Download
memory/2676-8-0x00007FFA5EE10000-0x00007FFA5F7FC000-memory.dmp

Filesize
9.9MB

Download
memory/2676-1-0x00007FFA5EE10000-0x00007FFA5F7FC000-memory.dmp

Filesize
9.9MB

Download