Analysis
- max time kernel
93s - max time network
113s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
03/03/2024, 09:25
Behavioral task
behavioral1
Sample
2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe
Resource
win7-20240221-en
windows7-x64
16 signatures
150 seconds
Behavioral task
behavioral2
Sample
2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
16 signatures
150 seconds
General
- Target 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe
- Size 594KB
- Sample240303-ldq8ragd8v
- SHA256 c4d3631daf1bc721b763d972a1c5b8368e51a74b8e36c671cbfd3a2bc9a0ad43
- MD5 1f76584eec60fa81e815ff4548d35a1c
- SHA1 7030dd2b4d1569cf7e422fbe77295a13a64ced06
- SHA512 39299163813c3d103b06da70da260e64b01af278efc2f1c0b9a0befe9fd51110ca48d2a899bae4bb51bddc60f90f81d147b425eb12bee440d762184537379f98
- SSDEEP 6144:Vr9Sb9q3146ghFGjfaLl3uw7yyB8a34isaS:6SAhFGjiLlb7yK844is
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Path
-
C:\Users\Admin\Desktop\s3don
-
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: bc1qlnzcep4l4ac0ttdrq7awxev9ehu465f2vpt9x0
Signatures
- Chaos
Ransomware family first seen in June 2021.
- Chaos Ransomware 2 IoCs
resource yara_rule behavioral2/memory/4888-0-0x00000000008E0000-0x000000000097A000-memory.dmp family_chaos behavioral2/files/0x000800000002321a-6.dat family_chaos - Detects command variations typically used by ransomware 2 IoCs
resource yara_rule behavioral2/memory/4888-0-0x00000000008E0000-0x000000000097A000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware behavioral2/files/0x000800000002321a-6.dat INDICATOR_SUSPICIOUS_GENRansomware - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe - 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\s3don svchost.exe - Executes dropped EXE 1 IoCs
pid Process 2396 svchost.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Drops desktop.ini file(s) 34 IoCs
description ioc Process 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\Saved Games\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\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\AccountPictures\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\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\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\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\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\OneDrive\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\Windows\Start Menu\Programs\Accessibility\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\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\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-275798769-4264537674-1142822080-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\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\Programs\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe - Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\noxx2bvdw.jpg" svchost.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000_Classes\Local Settings svchost.exe Key created \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000_Classes\Local Settings OpenWith.exe - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2396 svchost.exe - Suspicious behavior: EnumeratesProcesses 43 IoCs
pid Process 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe Token: SeDebugPrivilege 2396 svchost.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 628 OpenWith.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4888 wrote to memory of 2396 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe 92 PID 4888 wrote to memory of 2396 4888 2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe 92
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-03_1f76584eec60fa81e815ff4548d35a1c_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4888 -
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)
- Sets desktop wallpaper using registry
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2396
-
-
C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:628
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\svchost.exe
- Size 594KB
- SHA256 c4d3631daf1bc721b763d972a1c5b8368e51a74b8e36c671cbfd3a2bc9a0ad43
- MD5 1f76584eec60fa81e815ff4548d35a1c
- SHA1 7030dd2b4d1569cf7e422fbe77295a13a64ced06
- SHA512 39299163813c3d103b06da70da260e64b01af278efc2f1c0b9a0befe9fd51110ca48d2a899bae4bb51bddc60f90f81d147b425eb12bee440d762184537379f98
- SSDEEP 6144:Vr9Sb9q3146ghFGjfaLl3uw7yyB8a34isaS:6SAhFGjiLlb7yK844is
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\Desktop\s3don
- Size 964B
- SHA256 7d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
- MD5 4217b8b83ce3c3f70029a056546f8fd0
- SHA1 487cdb5733d073a0427418888e8f7070fe782a03
- SHA512 2a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740
- MD5 SHA1 SHA512