chaos | 7e198ef1ec2eb389d90466b4611cbd3a5e30dba930a08b22a327fa54cce11d48

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
23-08-2024 15:26

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General

Target

2024-08-23_a14458c56ecac27f4864c03bf83bf33f_chaos_destroyer_wannacry.exe
Size

23KB
MD5

a14458c56ecac27f4864c03bf83bf33f
SHA1

3cdc67eae4dbd1d78602ba0c4f41d3d09ee09698
SHA256

7e198ef1ec2eb389d90466b4611cbd3a5e30dba930a08b22a327fa54cce11d48
SHA512

f0ac92fdb93f51fee299b86166928703d07ccd6f9d15c23d2b055751e2f05cc7ae1f21bc11fc4fbf6ca1c5711b8cdf58fd83df01aaed8f63297ea25f68ce7ace
SSDEEP

384:d3Mg/bqo2mcxtivpZqjuwzUfJu7r91CaTxb5Uea:nqo2ptMpgjKRu7r9PTxb6ea

Score

10^/10

chaos ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\Documents\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 3 IoCs

resource	yara_rule
behavioral1/memory/2520-1-0x0000000000170000-0x000000000017C000-memory.dmp	family_chaos
behavioral1/files/0x00070000000120fd-4.dat	family_chaos
behavioral1/memory/2328-7-0x0000000001180000-0x000000000118C000-memory.dmp	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
2328	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\Public\Desktop\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-1385883288-3042840365-2734249351-1000\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\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\Favorites\Links for United States\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\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\Accessibility\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\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\Admin\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\Public\Videos\Sample Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Saved Games\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\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\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\Favorites\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\Sample Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\Sample 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\Windows\Start Menu\Programs\Accessories\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\Searches\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	svchost.exe

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

System Information Discovery
T1082

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1888	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2328	svchost.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2520	2024-08-23_a14458c56ecac27f4864c03bf83bf33f_chaos_destroyer_wannacry.exe
2520	2024-08-23_a14458c56ecac27f4864c03bf83bf33f_chaos_destroyer_wannacry.exe
2520	2024-08-23_a14458c56ecac27f4864c03bf83bf33f_chaos_destroyer_wannacry.exe
2328	svchost.exe
2328	svchost.exe
2328	svchost.exe
2328	svchost.exe
2328	svchost.exe
2328	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2520	2024-08-23_a14458c56ecac27f4864c03bf83bf33f_chaos_destroyer_wannacry.exe
Token: SeDebugPrivilege	2328	svchost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2328	2520	2024-08-23_a14458c56ecac27f4864c03bf83bf33f_chaos_destroyer_wannacry.exe	30
PID 2520 wrote to memory of 2328	2520	2024-08-23_a14458c56ecac27f4864c03bf83bf33f_chaos_destroyer_wannacry.exe	30
PID 2520 wrote to memory of 2328	2520	2024-08-23_a14458c56ecac27f4864c03bf83bf33f_chaos_destroyer_wannacry.exe	30
PID 2328 wrote to memory of 1888	2328	svchost.exe	33
PID 2328 wrote to memory of 1888	2328	svchost.exe	33
PID 2328 wrote to memory of 1888	2328	svchost.exe	33

C:\Users\Admin\AppData\Local\Temp\2024-08-23_a14458c56ecac27f4864c03bf83bf33f_chaos_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-23_a14458c56ecac27f4864c03bf83bf33f_chaos_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2520
- 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)
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2328
- - 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:1888

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

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Downloads

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

Filesize
23KB

MD5
a14458c56ecac27f4864c03bf83bf33f

SHA1
3cdc67eae4dbd1d78602ba0c4f41d3d09ee09698

SHA256
7e198ef1ec2eb389d90466b4611cbd3a5e30dba930a08b22a327fa54cce11d48

SHA512
f0ac92fdb93f51fee299b86166928703d07ccd6f9d15c23d2b055751e2f05cc7ae1f21bc11fc4fbf6ca1c5711b8cdf58fd83df01aaed8f63297ea25f68ce7ace

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

Filesize
964B

MD5
4217b8b83ce3c3f70029a056546f8fd0

SHA1
487cdb5733d073a0427418888e8f7070fe782a03

SHA256
7d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121

SHA512
2a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740

Download Submit
memory/2328-7-0x0000000001180000-0x000000000118C000-memory.dmp

Filesize
48KB

Download
memory/2328-17-0x000007FEF6680000-0x000007FEF706C000-memory.dmp

Filesize
9.9MB

Download
memory/2328-24-0x000007FEF6680000-0x000007FEF706C000-memory.dmp

Filesize
9.9MB

Download
memory/2328-535-0x000007FEF6680000-0x000007FEF706C000-memory.dmp

Filesize
9.9MB

Download
memory/2520-0-0x000007FEF6683000-0x000007FEF6684000-memory.dmp

Filesize
4KB

Download
memory/2520-1-0x0000000000170000-0x000000000017C000-memory.dmp

Filesize
48KB

Download