chaos | 0d9fcb8894240750cb5e4222ea78572aba6618eb5297c2069588ceb979d52d8b

Resubmissions

13-07-2024 09:54

240713-lxcvgawdmn 10

13-07-2024 09:52

240713-lv46yawdkj 10

13-07-2024 09:46

240713-lrz3tayajc 10

Analysis

max time kernel
1654s
max time network
1143s
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

baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
Size

35KB
MD5

d7a77d7d1657b93fc7270895e86dff74
SHA1

700448723acc915ad6ec8d7f9009f9305f642818
SHA256

baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f
SHA512

7d90dff4e81e8ad2dcb75c5ac58f875a332e62db9654d89261013007c5211f5a4dcf208fda5e13f1d5220e179cd557cf8212314578ec03691a3b0dfb6843137b
SSDEEP

768:sn3kIE69pYIlfr9ixbceEz0pmc+33t7gG:a3kIr3fr9ivEzog39

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

Processes:

resource	yara_rule
behavioral22/memory/2872-1-0x0000000000E40000-0x0000000000E4E000-memory.dmp	family_chaos
C:\Users\Admin\AppData\Roaming\svchost.exe	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

Processes:

baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exesvchost.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\Control Panel\International\Geo\Nation	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
Key value queried	\REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\Control Panel\International\Geo\Nation	svchost.exe

Drops startup file 3 IoCs

Processes:

svchost.exe

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

Processes:

svchost.exe

pid process

1884 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

pid	process
1884	svchost.exe

Drops desktop.ini file(s) 34 IoCs

Processes:

svchost.exe

description	ioc	process
File opened for modification	C:\Users\Admin\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\Recent\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\Pictures\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\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\Maintenance\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	F:\$RECYCLE.BIN\S-1-5-21-384068567-2943195810-3631207890-1000\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	svchost.exe
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\Accessibility\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Documents\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\System Tools\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\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\Videos\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\Pictures\Camera Roll\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\Public\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\OneDrive\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\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

Processes:

svchost.exe

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

Processes:

NOTEPAD.EXE

pid process

2428 NOTEPAD.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

svchost.exe

pid process

1884 svchost.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000_Classes\Local Settings	svchost.exe

pid	process
2428	NOTEPAD.EXE

pid	process
1884	svchost.exe

Suspicious behavior: EnumeratesProcesses 43 IoCs

Processes:

baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exesvchost.exe

pid	process
2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
1884	svchost.exe
1884	svchost.exe
1884	svchost.exe
1884	svchost.exe
1884	svchost.exe
1884	svchost.exe
1884	svchost.exe
1884	svchost.exe
1884	svchost.exe
1884	svchost.exe
1884	svchost.exe
1884	svchost.exe
1884	svchost.exe
1884	svchost.exe
1884	svchost.exe
1884	svchost.exe
1884	svchost.exe
1884	svchost.exe
1884	svchost.exe
1884	svchost.exe
1884	svchost.exe
1884	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exesvchost.exe

description	pid	process
Token: SeDebugPrivilege	2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
Token: SeDebugPrivilege	1884	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exesvchost.exe

description	pid	process	target process
PID 2872 wrote to memory of 1884	2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe	svchost.exe
PID 2872 wrote to memory of 1884	2872	baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe	svchost.exe
PID 1884 wrote to memory of 2428	1884	svchost.exe	NOTEPAD.EXE
PID 1884 wrote to memory of 2428	1884	svchost.exe	NOTEPAD.EXE

C:\Users\Admin\AppData\Local\Temp\baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe
"C:\Users\Admin\AppData\Local\Temp\baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2872

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:1884

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:2428

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
35KB

MD5
d7a77d7d1657b93fc7270895e86dff74

SHA1
700448723acc915ad6ec8d7f9009f9305f642818

SHA256
baa851154b7492b20ea71c068f77e7e2b91d347fb97e5e05999af153e3fd0f1f

SHA512
7d90dff4e81e8ad2dcb75c5ac58f875a332e62db9654d89261013007c5211f5a4dcf208fda5e13f1d5220e179cd557cf8212314578ec03691a3b0dfb6843137b

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

Filesize
964B

MD5
4217b8b83ce3c3f70029a056546f8fd0

SHA1
487cdb5733d073a0427418888e8f7070fe782a03

SHA256
7d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121

SHA512
2a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740

Download Submit
memory/1884-14-0x00007FF83ACE0000-0x00007FF83B7A1000-memory.dmp

Filesize
10.8MB

Download
memory/1884-72-0x00007FF83ACE0000-0x00007FF83B7A1000-memory.dmp

Filesize
10.8MB

Download
memory/2872-0-0x00007FF83ACE3000-0x00007FF83ACE5000-memory.dmp

Filesize
8KB

Download
memory/2872-1-0x0000000000E40000-0x0000000000E4E000-memory.dmp

Filesize
56KB

Download