chaos | 944d1f18292538fb36f385cb33ebee1e62c93cb277305a1d7ea1175ec1bbf0c1

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25-04-2024 22:29

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General

Target

2024-04-25_f03897bf11c310994eaa232752e0f6ae_chaos_destroyer_wannacry.exe
Size

23KB
MD5

f03897bf11c310994eaa232752e0f6ae
SHA1

47c664db7354b3d20fe46f60825a681d1653b75d
SHA256

944d1f18292538fb36f385cb33ebee1e62c93cb277305a1d7ea1175ec1bbf0c1
SHA512

68f0afac082d7af321c65c78f1f7476614b56034de8760ed5e4a36a519b2f7a44f87913d9a69eababdb2f166aed98fd7308bb1abae36d6fe89de12c74ad0fc4e
SSDEEP

384:93MLWHn3kI3fw5zOppMsm6nJZr91CzCbwaeR:tn3kI1ppMszJZr9iCbVeR

Score

10^/10

chaos ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\read_me.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: 50000000000000000 BTC Bitcoin Address: bc1qlnzcep4l4ac0ttdrq7awxev9ehu465f2vpt9x0

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/2388-0-0x00000000009D0000-0x00000000009DC000-memory.dmp	family_chaos
behavioral1/files/0x000a000000012255-5.dat	family_chaos
behavioral1/memory/2348-7-0x0000000000BF0000-0x0000000000BFC000-memory.dmp	family_chaos

Detects command variations typically used by ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/2388-0-0x00000000009D0000-0x00000000009DC000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/files/0x000a000000012255-5.dat	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/2348-7-0x0000000000BF0000-0x0000000000BFC000-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_me.txt	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2348	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\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\Links\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\Saved Games\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\Windows\SendTo\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\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\Maintenance\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\Accessibility\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\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Contacts\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\Start Menu\Programs\Accessories\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\Sample Music\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-2297530677-1229052932-2803917579-1000\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\Libraries\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Links\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\Documents\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\Desktop\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\Public\Videos\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
1956	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2348	svchost.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2388	2024-04-25_f03897bf11c310994eaa232752e0f6ae_chaos_destroyer_wannacry.exe
2388	2024-04-25_f03897bf11c310994eaa232752e0f6ae_chaos_destroyer_wannacry.exe
2348	svchost.exe
2348	svchost.exe
2348	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2388	2024-04-25_f03897bf11c310994eaa232752e0f6ae_chaos_destroyer_wannacry.exe
Token: SeDebugPrivilege	2348	svchost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 2348	2388	2024-04-25_f03897bf11c310994eaa232752e0f6ae_chaos_destroyer_wannacry.exe	28
PID 2388 wrote to memory of 2348	2388	2024-04-25_f03897bf11c310994eaa232752e0f6ae_chaos_destroyer_wannacry.exe	28
PID 2388 wrote to memory of 2348	2388	2024-04-25_f03897bf11c310994eaa232752e0f6ae_chaos_destroyer_wannacry.exe	28
PID 2348 wrote to memory of 1956	2348	svchost.exe	29
PID 2348 wrote to memory of 1956	2348	svchost.exe	29
PID 2348 wrote to memory of 1956	2348	svchost.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-04-25_f03897bf11c310994eaa232752e0f6ae_chaos_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-25_f03897bf11c310994eaa232752e0f6ae_chaos_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2388
- 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:2348
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_me.txt
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:1956

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
f03897bf11c310994eaa232752e0f6ae

SHA1
47c664db7354b3d20fe46f60825a681d1653b75d

SHA256
944d1f18292538fb36f385cb33ebee1e62c93cb277305a1d7ea1175ec1bbf0c1

SHA512
68f0afac082d7af321c65c78f1f7476614b56034de8760ed5e4a36a519b2f7a44f87913d9a69eababdb2f166aed98fd7308bb1abae36d6fe89de12c74ad0fc4e

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

Filesize
972B

MD5
ceefd69b7a5bf54138064bf7159288de

SHA1
b9ff77c44c9ee90472f296439d0ac243ab7c394d

SHA256
566cc6eeae00717cd1aeefd853f02ea6a24286ab679ba9d4839bb290650b69f7

SHA512
621b0f2d0e7c1e3abb86d441e6dac9f8e1f923cf68cc96b201cde9e936a57312291a5e0408f5f3554ac4523065fe143a182c4f23944c13082ae845632b2caa67

Download Submit
memory/2348-7-0x0000000000BF0000-0x0000000000BFC000-memory.dmp

Filesize
48KB

Download
memory/2348-9-0x000007FEF5AC0000-0x000007FEF64AC000-memory.dmp

Filesize
9.9MB

Download
memory/2348-72-0x0000000000990000-0x0000000000A10000-memory.dmp

Filesize
512KB

Download
memory/2348-74-0x000007FEF5AC0000-0x000007FEF64AC000-memory.dmp

Filesize
9.9MB

Download
memory/2348-75-0x0000000000990000-0x0000000000A10000-memory.dmp

Filesize
512KB

Download
memory/2388-0-0x00000000009D0000-0x00000000009DC000-memory.dmp

Filesize
48KB

Download
memory/2388-1-0x000007FEF5AC0000-0x000007FEF64AC000-memory.dmp

Filesize
9.9MB

Download
memory/2388-8-0x000007FEF5AC0000-0x000007FEF64AC000-memory.dmp

Filesize
9.9MB

Download