chaos | 005549db04af2245f3416966aa7808902cc387c51831c7d3c339c753bc1df63e

Resubmissions

01-02-2024 20:25

240201-y7rslafhan 10

01-02-2024 16:14

240201-tpn7jabefj 10

01-02-2024 13:28

240201-qqwffsgccl 10

Analysis

max time kernel
394s
max time network
1610s
platform
windows10-1703_x64
resource
win10-20231215-en
resource tags

arch:x64arch:x86image:win10-20231215-enlocale:en-usos:windows10-1703-x64system
submitted
01-02-2024 16:14

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General

Target

2024-02-01_6ff0562de33dde7498bdcd0bec418d14_chaos_destroyer_wannacry.exe
Size

26KB
MD5

6ff0562de33dde7498bdcd0bec418d14
SHA1

cc50f1aec12b4b53c4f6c0df255db6b5e26d51a6
SHA256

005549db04af2245f3416966aa7808902cc387c51831c7d3c339c753bc1df63e
SHA512

064d0d30cc63a8dfd6c1536e6ea3a93108c74c2aa62e6c89d2fe3eb0480baedc843f881e8dcbd67a45fc02b21c5b6c6f4e7f207ee0eca318cdfd1ced02ce9abc
SSDEEP

384:5YenjLLAps4T5lBavzb/xlhKOVp91QBb5hxDG1:4OElB6sc9GBbXxD6

Score

10^/10

chaos ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\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
behavioral2/memory/2148-0-0x0000000000290000-0x000000000029C000-memory.dmp	family_chaos
behavioral2/files/0x000700000001abed-5.dat	family_chaos

Renames multiple (165) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

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
5080	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) 64 IoCs

description	ioc	Process
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\WinX\Group3\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\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\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Windows PowerShell\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\History\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\Admin\Favorites\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	svchost.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Application Shortcuts\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\OneDrive\desktop.ini	svchost.exe
File opened for modification	C:\Users\Default\AppData\Local\Microsoft\Windows\WinX\Group1\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\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\Administrative Tools\desktop.ini	svchost.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\WinX\Group2\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\Windows\Start Menu\Programs\System Tools\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\WinX\Group1\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\Public\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn2\desktop.ini	svchost.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu Places\desktop.ini	svchost.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\desktop.ini	svchost.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\AccountPictures\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\Libraries\desktop.ini	svchost.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\desktop.ini	svchost.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessibility\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn1\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-4068299709-2976237847-2753307267-1000\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\All Users\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\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\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Libraries\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	svchost.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\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\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Default\AppData\Local\Microsoft\Windows\WinX\Group3\desktop.ini	svchost.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\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\Windows PowerShell\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	svchost.exe
File opened for modification	C:\Users\Default\AppData\Local\Microsoft\Windows\WinX\Group2\desktop.ini	svchost.exe
File opened for modification	C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\Desktop.ini	svchost.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4068299709-2976237847-2753307267-1000_Classes\Local Settings	svchost.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
4832	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
5080	svchost.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
2148	2024-02-01_6ff0562de33dde7498bdcd0bec418d14_chaos_destroyer_wannacry.exe
2148	2024-02-01_6ff0562de33dde7498bdcd0bec418d14_chaos_destroyer_wannacry.exe
2148	2024-02-01_6ff0562de33dde7498bdcd0bec418d14_chaos_destroyer_wannacry.exe
2148	2024-02-01_6ff0562de33dde7498bdcd0bec418d14_chaos_destroyer_wannacry.exe
2148	2024-02-01_6ff0562de33dde7498bdcd0bec418d14_chaos_destroyer_wannacry.exe
2148	2024-02-01_6ff0562de33dde7498bdcd0bec418d14_chaos_destroyer_wannacry.exe
2148	2024-02-01_6ff0562de33dde7498bdcd0bec418d14_chaos_destroyer_wannacry.exe
2148	2024-02-01_6ff0562de33dde7498bdcd0bec418d14_chaos_destroyer_wannacry.exe
2148	2024-02-01_6ff0562de33dde7498bdcd0bec418d14_chaos_destroyer_wannacry.exe
2148	2024-02-01_6ff0562de33dde7498bdcd0bec418d14_chaos_destroyer_wannacry.exe
2148	2024-02-01_6ff0562de33dde7498bdcd0bec418d14_chaos_destroyer_wannacry.exe
2148	2024-02-01_6ff0562de33dde7498bdcd0bec418d14_chaos_destroyer_wannacry.exe
2148	2024-02-01_6ff0562de33dde7498bdcd0bec418d14_chaos_destroyer_wannacry.exe
5080	svchost.exe
5080	svchost.exe
5080	svchost.exe
5080	svchost.exe
5080	svchost.exe
5080	svchost.exe
5080	svchost.exe
5080	svchost.exe
5080	svchost.exe
5080	svchost.exe
5080	svchost.exe
5080	svchost.exe
5080	svchost.exe
5080	svchost.exe
5080	svchost.exe
5080	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2148	2024-02-01_6ff0562de33dde7498bdcd0bec418d14_chaos_destroyer_wannacry.exe
Token: SeDebugPrivilege	5080	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2148 wrote to memory of 5080	2148	2024-02-01_6ff0562de33dde7498bdcd0bec418d14_chaos_destroyer_wannacry.exe	71
PID 2148 wrote to memory of 5080	2148	2024-02-01_6ff0562de33dde7498bdcd0bec418d14_chaos_destroyer_wannacry.exe	71
PID 5080 wrote to memory of 4832	5080	svchost.exe	75
PID 5080 wrote to memory of 4832	5080	svchost.exe	75

C:\Users\Admin\AppData\Local\Temp\2024-02-01_6ff0562de33dde7498bdcd0bec418d14_chaos_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_6ff0562de33dde7498bdcd0bec418d14_chaos_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2148
- 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:5080
- - 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:4832

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

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\2024-02-01_6ff0562de33dde7498bdcd0bec418d14_chaos_destroyer_wannacry.exe.log

Filesize
226B

MD5
d78293ab15ad25b5d6e8740fe5fd3872

SHA1
51b70837f90f2bff910daee706e6be8d62a3550e

SHA256
4d64746f8d24ec321b1a6c3a743946b66d8317cbc6bac6fed675a4bf6fa181f3

SHA512
1127435ef462f52677e1ef4d3b8cfdf9f5d95c832b4c9f41526b7448d315f25d96d3d5454108569b76d66d78d07ea5ba4a1ba8baee108e8c1b452ba19cc04925

Download Submit
C:\Users\Admin\AppData\Local\read_it.txt

Filesize
964B

MD5
4217b8b83ce3c3f70029a056546f8fd0

SHA1
487cdb5733d073a0427418888e8f7070fe782a03

SHA256
7d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121

SHA512
2a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740

Download Submit
C:\Users\Admin\AppData\Roaming\ConvertUninstall.avi

Filesize
1B

MD5
d1457b72c3fb323a2671125aef3eab5d

SHA1
5bab61eb53176449e25c2c82f172b82cb13ffb9d

SHA256
8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

SHA512
ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

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

Filesize
26KB

MD5
6ff0562de33dde7498bdcd0bec418d14

SHA1
cc50f1aec12b4b53c4f6c0df255db6b5e26d51a6

SHA256
005549db04af2245f3416966aa7808902cc387c51831c7d3c339c753bc1df63e

SHA512
064d0d30cc63a8dfd6c1536e6ea3a93108c74c2aa62e6c89d2fe3eb0480baedc843f881e8dcbd67a45fc02b21c5b6c6f4e7f207ee0eca318cdfd1ced02ce9abc

Download Submit
memory/2148-0-0x0000000000290000-0x000000000029C000-memory.dmp

Filesize
48KB

Download
memory/2148-1-0x00007FFE09FE0000-0x00007FFE0A9CC000-memory.dmp

Filesize
9.9MB

Download
memory/2148-8-0x00007FFE09FE0000-0x00007FFE0A9CC000-memory.dmp

Filesize
9.9MB

Download
memory/5080-9-0x00007FFE09FE0000-0x00007FFE0A9CC000-memory.dmp

Filesize
9.9MB

Download
memory/5080-22-0x000000001B800000-0x000000001B900000-memory.dmp

Filesize
1024KB

Download
memory/5080-994-0x00007FFE09FE0000-0x00007FFE0A9CC000-memory.dmp

Filesize
9.9MB

Download
memory/5080-1156-0x000000001B800000-0x000000001B900000-memory.dmp

Filesize
1024KB

Download