chaos | 4a99edc4912bb72864cf424c67b500187079ffb5bee14d6851800ebff9a56808

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-11-2024 03:38

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General

Target

2024-11-07_9cbcaed1a71dca5fa2fcb5fe41e0d083_chaos_destroyer_wannacry.exe
Size

23KB
MD5

9cbcaed1a71dca5fa2fcb5fe41e0d083
SHA1

699923b980e8b8677ab29137dec889cb4c7a87da
SHA256

4a99edc4912bb72864cf424c67b500187079ffb5bee14d6851800ebff9a56808
SHA512

bab13f8992a4c692412e0e15567693df36d02e6bf986bbadf9c4ff5b285b57853c6a9eafc3250cd1bdf33977428ddfa6c783080d1430e5593a181add28f19f2f
SSDEEP

384:I3Mg/bqo2f+B3kXSP1/pYVvobPJ/r91C9zBq92BewD9:2qo2gtxpjh/r9uzs9WewD9

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 <---- 당신의 모든 파일이 암호화되었습니다 당신의 컴퓨터가 랜섬웨어 바이러스에 감염되었습니다. 당신이 원하지 않든 파일이 암호화 되었습니다. 당신은 당신의 파일들을 저희의 도움 없이도 해독할 수 있습니다. 파일을 되찾으려면 어떻게 해야 하나요?: 복호화 프로그램을 구매할 수 있습니다 복호화 프로그램을 사용하면 모든 데이터를 복구할 수 있습니다. 파일 복호화 소프트웨어의 가격은 $1,500입니다. 결제는 비트코인으로만 가능합니다. 결제는 어떻게 하나요, 비트코인은 어디서 보내나요? 비트코인 구매는 국가마다 다르므로 빨리 구글 검색을 하는 것이 가장 좋습니다 비트코인 구매 방법을 알아보세요. 많은 고객이 이러한 사이트가 빠르고 안정적이라고 보고했습니다: 코인마마 - hxxps://www.coinmama.com 비트판다 - hxxps://www.bitpanda.com 보낼 비트코인: 0.1473766 BTC 비트코인 주소: bc1qlnzcep4l4ac0ttdrq7awxev9ehu465f2vpt9x0

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/2532-1-0x0000000000A70000-0x0000000000A7C000-memory.dmp	family_chaos
behavioral1/files/0x0007000000012117-5.dat	family_chaos
behavioral1/memory/2156-7-0x0000000000F10000-0x0000000000F1C000-memory.dmp	family_chaos

Chaos 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
2156	svchost.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Drops desktop.ini file(s) 34 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-2872745919-2748461613-2989606286-1000\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\Links\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
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\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\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\Public\Videos\Sample Videos\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\Libraries\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\Start Menu\Programs\Administrative Tools\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Contacts\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\Windows\Recent\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\Accessories\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Links\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\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\Accessories\Accessibility\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Saved Games\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
2264	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2156	svchost.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2532	2024-11-07_9cbcaed1a71dca5fa2fcb5fe41e0d083_chaos_destroyer_wannacry.exe
2532	2024-11-07_9cbcaed1a71dca5fa2fcb5fe41e0d083_chaos_destroyer_wannacry.exe
2532	2024-11-07_9cbcaed1a71dca5fa2fcb5fe41e0d083_chaos_destroyer_wannacry.exe
2156	svchost.exe
2156	svchost.exe
2156	svchost.exe
2156	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2532	2024-11-07_9cbcaed1a71dca5fa2fcb5fe41e0d083_chaos_destroyer_wannacry.exe
Token: SeDebugPrivilege	2156	svchost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2532 wrote to memory of 2156	2532	2024-11-07_9cbcaed1a71dca5fa2fcb5fe41e0d083_chaos_destroyer_wannacry.exe	30
PID 2532 wrote to memory of 2156	2532	2024-11-07_9cbcaed1a71dca5fa2fcb5fe41e0d083_chaos_destroyer_wannacry.exe	30
PID 2532 wrote to memory of 2156	2532	2024-11-07_9cbcaed1a71dca5fa2fcb5fe41e0d083_chaos_destroyer_wannacry.exe	30
PID 2156 wrote to memory of 2264	2156	svchost.exe	32
PID 2156 wrote to memory of 2264	2156	svchost.exe	32
PID 2156 wrote to memory of 2264	2156	svchost.exe	32

C:\Users\Admin\AppData\Local\Temp\2024-11-07_9cbcaed1a71dca5fa2fcb5fe41e0d083_chaos_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-07_9cbcaed1a71dca5fa2fcb5fe41e0d083_chaos_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2532
- 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:2156
- - 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:2264

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

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
9cbcaed1a71dca5fa2fcb5fe41e0d083

SHA1
699923b980e8b8677ab29137dec889cb4c7a87da

SHA256
4a99edc4912bb72864cf424c67b500187079ffb5bee14d6851800ebff9a56808

SHA512
bab13f8992a4c692412e0e15567693df36d02e6bf986bbadf9c4ff5b285b57853c6a9eafc3250cd1bdf33977428ddfa6c783080d1430e5593a181add28f19f2f

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

Filesize
1KB

MD5
691dabf88ce8bf585b6554d8f0ff880e

SHA1
543414f88078a7a5520593e24119253f2b7fc95c

SHA256
c58ae5db59068e59c319fd721a3d0d9174fdca70ad1e37859970dfabc0de49b2

SHA512
0017de1d0780f6f33d8ea630ef2ca1bdc6b8836cea78647cd640f0e0dbc84108cae2e2b46ea03c14fe0bec48010fc1b437c1019f99d63ad60dc99108dfe58f8f

Download Submit
memory/2156-7-0x0000000000F10000-0x0000000000F1C000-memory.dmp

Filesize
48KB

Download
memory/2156-9-0x000007FEF5820000-0x000007FEF620C000-memory.dmp

Filesize
9.9MB

Download
memory/2156-10-0x000007FEF5820000-0x000007FEF620C000-memory.dmp

Filesize
9.9MB

Download
memory/2156-457-0x000007FEF5820000-0x000007FEF620C000-memory.dmp

Filesize
9.9MB

Download
memory/2532-0-0x000007FEF5823000-0x000007FEF5824000-memory.dmp

Filesize
4KB

Download
memory/2532-1-0x0000000000A70000-0x0000000000A7C000-memory.dmp

Filesize
48KB

Download