chaos | d418ca84ca4bb7db72d2b00f8d6225a57909e02f712c7b0e2d9cefb2e18d0737

Resubmissions

13-07-2024 09:54

240713-lxbx6swdmm 10

13-07-2024 09:50

240713-lvbvdsyapd 10

13-07-2024 09:46

240713-lr1dksyajd 10

Analysis

max time kernel
1708s
max time network
1156s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
13-07-2024 09:54

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Report Analysis Logs

General

Target

5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
Size

25KB
MD5

d2623fa5d0ce3b4746b1803caed0fdf6
SHA1

339883e34e0cbc23f4c7a6ddb2376b420066fa1f
SHA256

5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7
SHA512

3140427772552c53ceafa9f745f6349f170401d6b3ae72d641d3004b5b4cfca82b04c30e6734f1b1fec97dcdbc452a36d2ffca4a014eb5851ea2c0f6bf4969f7
SSDEEP

384:a3MLWHn3kI3fcSxlR2WpOYsBNakQJgr91Czxb5fe6uaVyZK:+n3kIE69pCYgr9ixbZe6PVyk

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
behavioral19/memory/3024-1-0x00000000009B0000-0x00000000009BC000-memory.dmp	family_chaos
behavioral19/files/0x000a0000000233b3-6.dat	family_chaos

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\Control Panel\International\Geo\Nation	svchost.exe
Key value queried	\REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\Control Panel\International\Geo\Nation	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe

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
968	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) 34 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Searches\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\Public\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Pictures\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\Public\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\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\Windows\Libraries\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\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\Pictures\Saved Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Saved Games\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\Music\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\AccountPictures\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\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-384068567-2943195810-3631207890-1000\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\OneDrive\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Links\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\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-1-5-21-384068567-2943195810-3631207890-1000_Classes\Local Settings	svchost.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
2116	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
968	svchost.exe

Suspicious behavior: EnumeratesProcesses 45 IoCs

pid	Process
3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
968	svchost.exe
968	svchost.exe
968	svchost.exe
968	svchost.exe
968	svchost.exe
968	svchost.exe
968	svchost.exe
968	svchost.exe
968	svchost.exe
968	svchost.exe
968	svchost.exe
968	svchost.exe
968	svchost.exe
968	svchost.exe
968	svchost.exe
968	svchost.exe
968	svchost.exe
968	svchost.exe
968	svchost.exe
968	svchost.exe
968	svchost.exe
968	svchost.exe
968	svchost.exe
968	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
Token: SeDebugPrivilege	968	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3024 wrote to memory of 968	3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe	84
PID 3024 wrote to memory of 968	3024	5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe	84
PID 968 wrote to memory of 2116	968	svchost.exe	85
PID 968 wrote to memory of 2116	968	svchost.exe	85

C:\Users\Admin\AppData\Local\Temp\5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe
"C:\Users\Admin\AppData\Local\Temp\5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3024
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Checks computer location settings
  - 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:968
- - 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:2116

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

Replay Monitor

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Downloads

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

Filesize
25KB

MD5
d2623fa5d0ce3b4746b1803caed0fdf6

SHA1
339883e34e0cbc23f4c7a6ddb2376b420066fa1f

SHA256
5b439daac4faa9078a6973301eaeed339f77bbbbcdaa46f3452c1fc90499a4d7

SHA512
3140427772552c53ceafa9f745f6349f170401d6b3ae72d641d3004b5b4cfca82b04c30e6734f1b1fec97dcdbc452a36d2ffca4a014eb5851ea2c0f6bf4969f7

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

Filesize
964B

MD5
4217b8b83ce3c3f70029a056546f8fd0

SHA1
487cdb5733d073a0427418888e8f7070fe782a03

SHA256
7d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121

SHA512
2a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740

Download Submit
memory/968-14-0x00007FFA20FA0000-0x00007FFA21A61000-memory.dmp

Filesize
10.8MB

Download
memory/968-73-0x00007FFA20FA0000-0x00007FFA21A61000-memory.dmp

Filesize
10.8MB

Download
memory/3024-0-0x00007FFA20FA3000-0x00007FFA20FA5000-memory.dmp

Filesize
8KB

Download
memory/3024-1-0x00000000009B0000-0x00000000009BC000-memory.dmp

Filesize
48KB

Download