chaos | c0274081b61a054acb174e04cf2931c7f4ca31945c6e375858f12035af2b5843

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05-06-2024 19:47

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General

Target

2024-06-05_7f12f0dd42997797f86310621e0b3768_chaos_destroyer_wannacry.exe
Size

23KB
MD5

7f12f0dd42997797f86310621e0b3768
SHA1

1be9990026babc9d3721bfddcdead6a02026c8ce
SHA256

c0274081b61a054acb174e04cf2931c7f4ca31945c6e375858f12035af2b5843
SHA512

631f47e2c2b375698eb47e0471d85d7ecbe76fb8361472a1c407f182a12d27a2fe369ab03b8754ff19b33e08ec749c160685139ce938237bcff8663b854a50d7
SSDEEP

384:HI3Mg/bqo2/00woxpqhIcyJOr91CIceb51e7Ki:Wqo2jzxpqmcmOr9WebHer

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/2212-1-0x0000000000B90000-0x0000000000B9C000-memory.dmp	family_chaos
behavioral1/files/0x000d00000001269e-4.dat	family_chaos
behavioral1/memory/2624-7-0x00000000010A0000-0x00000000010AC000-memory.dmp	family_chaos

Detects command variations typically used by ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/2212-1-0x0000000000B90000-0x0000000000B9C000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/files/0x000d00000001269e-4.dat	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/2624-7-0x00000000010A0000-0x00000000010AC000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware

Renames multiple (182) 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 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
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2624	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\AppData\Roaming\Microsoft\Windows\Start Menu\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\Documents\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\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\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\Libraries\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-1298544033-3225604241-2703760938-1000\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\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\Programs\Accessories\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\Favorites\Links for United States\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Videos\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\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\Public\Pictures\Sample Pictures\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\Music\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\Public\Desktop\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\Documents\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
2560	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2624	svchost.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2212	2024-06-05_7f12f0dd42997797f86310621e0b3768_chaos_destroyer_wannacry.exe
2212	2024-06-05_7f12f0dd42997797f86310621e0b3768_chaos_destroyer_wannacry.exe
2624	svchost.exe
2624	svchost.exe
2624	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2212	2024-06-05_7f12f0dd42997797f86310621e0b3768_chaos_destroyer_wannacry.exe
Token: SeDebugPrivilege	2624	svchost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2212 wrote to memory of 2624	2212	2024-06-05_7f12f0dd42997797f86310621e0b3768_chaos_destroyer_wannacry.exe	28
PID 2212 wrote to memory of 2624	2212	2024-06-05_7f12f0dd42997797f86310621e0b3768_chaos_destroyer_wannacry.exe	28
PID 2212 wrote to memory of 2624	2212	2024-06-05_7f12f0dd42997797f86310621e0b3768_chaos_destroyer_wannacry.exe	28
PID 2624 wrote to memory of 2560	2624	svchost.exe	30
PID 2624 wrote to memory of 2560	2624	svchost.exe	30
PID 2624 wrote to memory of 2560	2624	svchost.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-06-05_7f12f0dd42997797f86310621e0b3768_chaos_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-05_7f12f0dd42997797f86310621e0b3768_chaos_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2212
- 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:2624
- - 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:2560

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
7f12f0dd42997797f86310621e0b3768

SHA1
1be9990026babc9d3721bfddcdead6a02026c8ce

SHA256
c0274081b61a054acb174e04cf2931c7f4ca31945c6e375858f12035af2b5843

SHA512
631f47e2c2b375698eb47e0471d85d7ecbe76fb8361472a1c407f182a12d27a2fe369ab03b8754ff19b33e08ec749c160685139ce938237bcff8663b854a50d7

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

Filesize
964B

MD5
4217b8b83ce3c3f70029a056546f8fd0

SHA1
487cdb5733d073a0427418888e8f7070fe782a03

SHA256
7d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121

SHA512
2a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740

Download Submit
memory/2212-0-0x000007FEF5A33000-0x000007FEF5A34000-memory.dmp

Filesize
4KB

Download
memory/2212-1-0x0000000000B90000-0x0000000000B9C000-memory.dmp

Filesize
48KB

Download
memory/2624-7-0x00000000010A0000-0x00000000010AC000-memory.dmp

Filesize
48KB

Download
memory/2624-17-0x000007FEF5A30000-0x000007FEF641C000-memory.dmp

Filesize
9.9MB

Download
memory/2624-28-0x000007FEF5A30000-0x000007FEF641C000-memory.dmp

Filesize
9.9MB

Download
memory/2624-426-0x000007FEF5A30000-0x000007FEF641C000-memory.dmp

Filesize
9.9MB

Download