chaos | b2121cc12e8d7b6e605f120de83f4c58c59e93f4ddb28dae3733a5dee9f42161

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05-04-2024 00:41

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General

Target

2024-04-05_70f91a30c28edfa07a360ba6141af2d3_chaos_destroyer_wannacry.exe
Size

27KB
MD5

70f91a30c28edfa07a360ba6141af2d3
SHA1

f5e7282c42b372f7d884ab5f6c2ea2574928e3d6
SHA256

b2121cc12e8d7b6e605f120de83f4c58c59e93f4ddb28dae3733a5dee9f42161
SHA512

bea280a8a5f5059ed933b8f8c6e8da7e68eaf01592190d97175b1aa2431600e15c514d1f26fb2da5f1bcf912e9877f138163a92a1ff2f889c75d9b494e3f914f
SSDEEP

384:Ib3MLWHn3kIGOozgJQoApuVgjuRJqIr91CrebHtPeKfJ8YGAal6Wo5:Kn3kIYg6pumjiVr9SebpeKhvGeWo5

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 usdt trc20 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: TQNt8wXTF1gcwqPnhh6J6FB5iF247JhAbr

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/1692-0-0x0000000000290000-0x000000000029C000-memory.dmp	family_chaos
behavioral1/files/0x000b00000001222b-5.dat	family_chaos
behavioral1/memory/1964-7-0x0000000001080000-0x000000000108C000-memory.dmp	family_chaos

Detects command variations typically used by ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/1692-0-0x0000000000290000-0x000000000029C000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/files/0x000b00000001222b-5.dat	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1964-7-0x0000000001080000-0x000000000108C000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware

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
1964	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\Contacts\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\Start Menu\Programs\Administrative Tools\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\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-1658372521-4246568289-2509113762-1000\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\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\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Saved Games\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\Downloads\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\Videos\Sample Videos\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\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\Music\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\Libraries\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\Desktop\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\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\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\Links\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\Programs\Accessories\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
2812	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1964	svchost.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1692	2024-04-05_70f91a30c28edfa07a360ba6141af2d3_chaos_destroyer_wannacry.exe
1692	2024-04-05_70f91a30c28edfa07a360ba6141af2d3_chaos_destroyer_wannacry.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1692	2024-04-05_70f91a30c28edfa07a360ba6141af2d3_chaos_destroyer_wannacry.exe
Token: SeDebugPrivilege	1964	svchost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1692 wrote to memory of 1964	1692	2024-04-05_70f91a30c28edfa07a360ba6141af2d3_chaos_destroyer_wannacry.exe	28
PID 1692 wrote to memory of 1964	1692	2024-04-05_70f91a30c28edfa07a360ba6141af2d3_chaos_destroyer_wannacry.exe	28
PID 1692 wrote to memory of 1964	1692	2024-04-05_70f91a30c28edfa07a360ba6141af2d3_chaos_destroyer_wannacry.exe	28
PID 1964 wrote to memory of 2812	1964	svchost.exe	30
PID 1964 wrote to memory of 2812	1964	svchost.exe	30
PID 1964 wrote to memory of 2812	1964	svchost.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-04-05_70f91a30c28edfa07a360ba6141af2d3_chaos_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-05_70f91a30c28edfa07a360ba6141af2d3_chaos_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1692
- 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:1964
- - 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:2812

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
27KB

MD5
70f91a30c28edfa07a360ba6141af2d3

SHA1
f5e7282c42b372f7d884ab5f6c2ea2574928e3d6

SHA256
b2121cc12e8d7b6e605f120de83f4c58c59e93f4ddb28dae3733a5dee9f42161

SHA512
bea280a8a5f5059ed933b8f8c6e8da7e68eaf01592190d97175b1aa2431600e15c514d1f26fb2da5f1bcf912e9877f138163a92a1ff2f889c75d9b494e3f914f

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

Filesize
959B

MD5
30367b4cffa6974e75f6863ea3075ed9

SHA1
e5f1c8b71db6dce698c51333eae4d60a3a69b2ef

SHA256
5a0debe6b85fa438076769ef80b2118c44f8e216827be233b4dd58e325307243

SHA512
f125223772db5a8cd83e079fd1695ae50bbe7ecedd9c3b0909d41e9f5073a473fab4378d280efb7c9994062f8427fd263f6946aec6d6997d2b8231bced6e8ac3

Download Submit
memory/1692-0-0x0000000000290000-0x000000000029C000-memory.dmp

Filesize
48KB

Download
memory/1692-1-0x000007FEF62D0000-0x000007FEF6CBC000-memory.dmp

Filesize
9.9MB

Download
memory/1692-8-0x000007FEF62D0000-0x000007FEF6CBC000-memory.dmp

Filesize
9.9MB

Download
memory/1964-7-0x0000000001080000-0x000000000108C000-memory.dmp

Filesize
48KB

Download
memory/1964-9-0x000007FEF62D0000-0x000007FEF6CBC000-memory.dmp

Filesize
9.9MB

Download
memory/1964-71-0x000000001AE10000-0x000000001AE90000-memory.dmp

Filesize
512KB

Download
memory/1964-72-0x000007FEF62D0000-0x000007FEF6CBC000-memory.dmp

Filesize
9.9MB

Download
memory/1964-73-0x000000001AE10000-0x000000001AE90000-memory.dmp

Filesize
512KB

Download