chaos | ae27daabc61a8b9709174855a715c92a70f6c6e0ade63c5ebafa73c2d7415f91

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28-04-2024 19:36

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General

Target

2024-04-28_f8b164f3d19dca15358c96ec754202b5_chaos_destroyer_wannacry.exe
Size

23KB
MD5

f8b164f3d19dca15358c96ec754202b5
SHA1

2a09dff58d80a60c13a53cf74831b25ecf408133
SHA256

ae27daabc61a8b9709174855a715c92a70f6c6e0ade63c5ebafa73c2d7415f91
SHA512

f6af98f321ac22c809f9eb060fcb7e244acdb3dbf43c557e3faa71977380075acab5fea1658b8830ab6285b6ba705cce437956f189dd0624d5a96e7804f3d624
SSDEEP

384:k3MLWHn3kI3fg9upOcsBNakOJFr91CzxbG3+eR:cn3kIeupuSFr9ixbleR

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: 0,00080 Bitcoin Bitcoin Address: bc1qpprza3lqav3pecj6aclewp97hc5zsn5f9aznh9

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/1996-0-0x0000000000F80000-0x0000000000F8C000-memory.dmp	family_chaos
behavioral1/files/0x000d000000014708-5.dat	family_chaos
behavioral1/memory/2908-7-0x00000000011F0000-0x00000000011FC000-memory.dmp	family_chaos

Detects command variations typically used by ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/1996-0-0x0000000000F80000-0x0000000000F8C000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/files/0x000d000000014708-5.dat	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/2908-7-0x00000000011F0000-0x00000000011FC000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware

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
2908	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\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\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\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\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\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Pictures\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\Recent\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Saved Games\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\Downloads\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\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\Favorites\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\User Pinned\TaskBar\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\Accessibility\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\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\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\Internet Explorer\Quick Launch\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\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
1984	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2908	svchost.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1996	2024-04-28_f8b164f3d19dca15358c96ec754202b5_chaos_destroyer_wannacry.exe
1996	2024-04-28_f8b164f3d19dca15358c96ec754202b5_chaos_destroyer_wannacry.exe
2908	svchost.exe
2908	svchost.exe
2908	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1996	2024-04-28_f8b164f3d19dca15358c96ec754202b5_chaos_destroyer_wannacry.exe
Token: SeDebugPrivilege	2908	svchost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1996 wrote to memory of 2908	1996	2024-04-28_f8b164f3d19dca15358c96ec754202b5_chaos_destroyer_wannacry.exe	28
PID 1996 wrote to memory of 2908	1996	2024-04-28_f8b164f3d19dca15358c96ec754202b5_chaos_destroyer_wannacry.exe	28
PID 1996 wrote to memory of 2908	1996	2024-04-28_f8b164f3d19dca15358c96ec754202b5_chaos_destroyer_wannacry.exe	28
PID 2908 wrote to memory of 1984	2908	svchost.exe	29
PID 2908 wrote to memory of 1984	2908	svchost.exe	29
PID 2908 wrote to memory of 1984	2908	svchost.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-04-28_f8b164f3d19dca15358c96ec754202b5_chaos_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-28_f8b164f3d19dca15358c96ec754202b5_chaos_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1996
- 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:2908
- - 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:1984

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
f8b164f3d19dca15358c96ec754202b5

SHA1
2a09dff58d80a60c13a53cf74831b25ecf408133

SHA256
ae27daabc61a8b9709174855a715c92a70f6c6e0ade63c5ebafa73c2d7415f91

SHA512
f6af98f321ac22c809f9eb060fcb7e244acdb3dbf43c557e3faa71977380075acab5fea1658b8830ab6285b6ba705cce437956f189dd0624d5a96e7804f3d624

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

Filesize
966B

MD5
bfc650182905e7fe175609c32ac7e856

SHA1
9bba86da65e029e574b16f94ac1caf8c92490a61

SHA256
85280f7025464a5f27cb5dc983e8b25ea34fa7649c8a56bfaa8cbeaa85df1324

SHA512
e678cec9b4f5c2d8c2a6462b177f3c91ee59b989ebc61c3931f0971cef5a66cd6811a9e32f06d4c812318c6892331d485f3c87fb95100087ef9202398cd2114b

Download Submit
memory/1996-0-0x0000000000F80000-0x0000000000F8C000-memory.dmp

Filesize
48KB

Download
memory/1996-1-0x000007FEF56F0000-0x000007FEF60DC000-memory.dmp

Filesize
9.9MB

Download
memory/1996-8-0x000007FEF56F0000-0x000007FEF60DC000-memory.dmp

Filesize
9.9MB

Download
memory/2908-7-0x00000000011F0000-0x00000000011FC000-memory.dmp

Filesize
48KB

Download
memory/2908-9-0x000007FEF56F0000-0x000007FEF60DC000-memory.dmp

Filesize
9.9MB

Download
memory/2908-73-0x00000000009B0000-0x0000000000A30000-memory.dmp

Filesize
512KB

Download
memory/2908-74-0x000007FEF56F0000-0x000007FEF60DC000-memory.dmp

Filesize
9.9MB

Download
memory/2908-75-0x00000000009B0000-0x0000000000A30000-memory.dmp

Filesize
512KB

Download