chaos | 422a692ad2161387188bf81b0c39bc420b08c42f3c6481aa78b8f972696d9f45

Analysis

max time kernel
117s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17-04-2024 06:08

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General

Target

2024-04-17_eef725304b796ed42e6b33915948a110_chaos_destroyer_wannacry.exe
Size

23KB
MD5

eef725304b796ed42e6b33915948a110
SHA1

0f76177579a5348d2ce3c8ef2830ff7e6cd5c6a0
SHA256

422a692ad2161387188bf81b0c39bc420b08c42f3c6481aa78b8f972696d9f45
SHA512

70fb1dad949c176a5c34bd5112ab71ddcf48fe7fd1078123e305d1f3b5c590967c9ad4505394f40cfc3d4e5d47ed96edcc756297111db7583d080d6bb37a9bb1
SSDEEP

384:OlrTrx6hQRf79BBkYUC0TFbj1YLoiqbVkYFB:crTrx6ho77BkY4bpEqb+YFB

Score

10^/10

chaos ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\Documents\READMEEEEE.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: <insert_your_address>

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Detects command variations typically used by ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/2252-0-0x0000000000940000-0x000000000094C000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/files/0x0008000000012243-4.dat	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/2272-7-0x0000000000060000-0x000000000006C000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware

Renames multiple (193) 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\test.url	test.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini	test.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\READMEEEEE.txt	test.exe

Executes dropped EXE 1 IoCs

pid	Process
2272	test.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\Libraries\desktop.ini	test.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini	test.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini	test.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	test.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	test.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	test.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	test.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	test.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	test.exe
File opened for modification	C:\Users\Public\Pictures\Sample Pictures\desktop.ini	test.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	test.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini	test.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	test.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	test.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	test.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	test.exe
File opened for modification	C:\Users\Public\Videos\Sample Videos\desktop.ini	test.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	test.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini	test.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	test.exe
File opened for modification	C:\Users\Admin\Favorites\Links for United States\desktop.ini	test.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	test.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini	test.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-2461186416-2307104501-1787948496-1000\desktop.ini	test.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	test.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	test.exe
File opened for modification	C:\Users\Public\Music\Sample Music\desktop.ini	test.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	test.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	test.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini	test.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	test.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	test.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	test.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	test.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
1196	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2272	test.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2252	2024-04-17_eef725304b796ed42e6b33915948a110_chaos_destroyer_wannacry.exe
2252	2024-04-17_eef725304b796ed42e6b33915948a110_chaos_destroyer_wannacry.exe
2272	test.exe
2272	test.exe
2272	test.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2252	2024-04-17_eef725304b796ed42e6b33915948a110_chaos_destroyer_wannacry.exe
Token: SeDebugPrivilege	2272	test.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 2272	2252	2024-04-17_eef725304b796ed42e6b33915948a110_chaos_destroyer_wannacry.exe	28
PID 2252 wrote to memory of 2272	2252	2024-04-17_eef725304b796ed42e6b33915948a110_chaos_destroyer_wannacry.exe	28
PID 2252 wrote to memory of 2272	2252	2024-04-17_eef725304b796ed42e6b33915948a110_chaos_destroyer_wannacry.exe	28
PID 2272 wrote to memory of 1196	2272	test.exe	31
PID 2272 wrote to memory of 1196	2272	test.exe	31
PID 2272 wrote to memory of 1196	2272	test.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-04-17_eef725304b796ed42e6b33915948a110_chaos_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-17_eef725304b796ed42e6b33915948a110_chaos_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2252
- C:\Users\Admin\AppData\Roaming\test.exe
  "C:\Users\Admin\AppData\Roaming\test.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:2272
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\READMEEEEE.txt
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:1196

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\test.exe

Filesize
23KB

MD5
eef725304b796ed42e6b33915948a110

SHA1
0f76177579a5348d2ce3c8ef2830ff7e6cd5c6a0

SHA256
422a692ad2161387188bf81b0c39bc420b08c42f3c6481aa78b8f972696d9f45

SHA512
70fb1dad949c176a5c34bd5112ab71ddcf48fe7fd1078123e305d1f3b5c590967c9ad4505394f40cfc3d4e5d47ed96edcc756297111db7583d080d6bb37a9bb1

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

Filesize
943B

MD5
bc80da411ccb7cd8db9395473e50b126

SHA1
2fb96c64c36c49a595bb1a2892cfdaf5c9fbe2f0

SHA256
fc565168c79007dd271b607a2adc0dc91b66c2555b574b731d37a6b7bde072fc

SHA512
1975061edec3d68d8c0511c867c5b9106d1815ae6dd5702efd6ac7ef96b2ede6d0a79d6cd3a46873b4ae4e797ce0de11276eabd245154df86965c3c965329051

Download Submit
memory/2252-0-0x0000000000940000-0x000000000094C000-memory.dmp

Filesize
48KB

Download
memory/2252-1-0x000007FEF5160000-0x000007FEF5B4C000-memory.dmp

Filesize
9.9MB

Download
memory/2252-446-0x000007FEF5160000-0x000007FEF5B4C000-memory.dmp

Filesize
9.9MB

Download
memory/2272-7-0x0000000000060000-0x000000000006C000-memory.dmp

Filesize
48KB

Download
memory/2272-8-0x000007FEF5160000-0x000007FEF5B4C000-memory.dmp

Filesize
9.9MB

Download
memory/2272-10-0x000000001A790000-0x000000001A810000-memory.dmp

Filesize
512KB

Download
memory/2272-447-0x000007FEF5160000-0x000007FEF5B4C000-memory.dmp

Filesize
9.9MB

Download