Analysis
- max time kernel
104s - max time network
138s - platform
windows10-2004_x64 - resource
win10v2004-20250314-en - resource tags
arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system - submitted
23/03/2025, 04:25
Behavioral task
behavioral1
Sample
2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe
Resource
win7-20240903-en
windows7-x64
13 signatures
150 seconds
Behavioral task
behavioral2
Sample
2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe
Resource
win10v2004-20250314-en
windows10-2004-x64
15 signatures
150 seconds
General
- Target 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe
- Size 22KB
- Sample250323-e18b8atkx6
- SHA256 eefef45e9535ca06d46c179e6a6b757b0a0400adf65d33bbc436128e61613a21
- MD5 3844f4425e6c8080d98a8e393be64321
- SHA1 d028d8531fb246c75af144856822baefdaf1e49d
- SHA512 884c84943799d42dbd22521cad43f9bb26aba9072a3d33115b0b723dcf453a25b5983ec2838efcdd1c073c7c334944d239c94fb99c3951a8090b8708e31ffc1e
- SSDEEP 384:J3MLWHn3kIeoLF4+BlpFD4+CTJVr91CzEbLLe6:pn3kIhe+7pN4+6Vr9iEbfe6
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Chaos
Ransomware family first seen in June 2021.
- Chaos Ransomware 2 IoCs
resource yara_rule behavioral2/memory/2220-1-0x0000000000A40000-0x0000000000A4C000-memory.dmp family_chaos behavioral2/files/0x00100000000240af-6.dat family_chaos - Chaos family
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Control Panel\International\Geo\Nation 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Control Panel\International\Geo\Nation setup.exe - Drops startup file 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\setup.url setup.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini setup.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_it.txt setup.exe - Executes dropped EXE 1 IoCs
pid Process 4616 setup.exe - Reads user/profile data of web browsers 3 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\Music\desktop.ini setup.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini setup.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini setup.exe File opened for modification C:\Users\Public\Desktop\desktop.ini setup.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3342763580-2723508992-2885672917-1000\desktop.ini setup.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini setup.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini setup.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini setup.exe File opened for modification C:\Users\Public\Documents\desktop.ini setup.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini setup.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini setup.exe File opened for modification C:\Users\Public\Videos\desktop.ini setup.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini setup.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini setup.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini setup.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini setup.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini setup.exe File opened for modification C:\Users\Admin\Links\desktop.ini setup.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini setup.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini setup.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini setup.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini setup.exe File opened for modification C:\Users\Admin\Searches\desktop.ini setup.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini setup.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini setup.exe File opened for modification C:\Users\Public\Pictures\desktop.ini setup.exe File opened for modification C:\Users\Admin\Documents\desktop.ini setup.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini setup.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini setup.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini setup.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini setup.exe File opened for modification C:\Users\Admin\Videos\desktop.ini setup.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini setup.exe File opened for modification C:\Users\Public\Music\desktop.ini setup.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000_Classes\Local Settings setup.exe - Opens file in notepad (likely ransom note) 1 IoCs
pid Process 5548 NOTEPAD.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4616 setup.exe - Suspicious behavior: EnumeratesProcesses 47 IoCs
pid Process 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 4616 setup.exe 4616 setup.exe 4616 setup.exe 4616 setup.exe 4616 setup.exe 4616 setup.exe 4616 setup.exe 4616 setup.exe 4616 setup.exe 4616 setup.exe 4616 setup.exe 4616 setup.exe 4616 setup.exe 4616 setup.exe 4616 setup.exe 4616 setup.exe 4616 setup.exe 4616 setup.exe 4616 setup.exe 4616 setup.exe 4616 setup.exe 4616 setup.exe 4616 setup.exe 4616 setup.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe Token: SeDebugPrivilege 4616 setup.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2220 wrote to memory of 4616 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 91 PID 2220 wrote to memory of 4616 2220 2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe 91 PID 4616 wrote to memory of 5548 4616 setup.exe 95 PID 4616 wrote to memory of 5548 4616 setup.exe 95
Processes
-
C:\Users\Admin\AppData\Local\Temp\2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2025-03-23_3844f4425e6c8080d98a8e393be64321_chaos_destroyer_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2220 -
C:\Users\Admin\AppData\Roaming\setup.exe"C:\Users\Admin\AppData\Roaming\setup.exe"2⤵
- Checks computer location settings
- Drops startup file
- Executes dropped EXE
- Drops desktop.ini file(s)
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4616 -
C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt3⤵
- Opens file in notepad (likely ransom note)
PID:5548
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\setup.exe
- Size 22KB
- SHA256 eefef45e9535ca06d46c179e6a6b757b0a0400adf65d33bbc436128e61613a21
- MD5 3844f4425e6c8080d98a8e393be64321
- SHA1 d028d8531fb246c75af144856822baefdaf1e49d
- SHA512 884c84943799d42dbd22521cad43f9bb26aba9072a3d33115b0b723dcf453a25b5983ec2838efcdd1c073c7c334944d239c94fb99c3951a8090b8708e31ffc1e
- SSDEEP 384:J3MLWHn3kIeoLF4+BlpFD4+CTJVr91CzEbLLe6:pn3kIhe+7pN4+6Vr9iEbfe6
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\Desktop\read_it.txt
- Size 952B
- SHA256 6da207a510ca233577bf0bd830d3971c72eb2250bb8d4c148817e12e58efed21
- MD5 ce4ac7c8ce403fed9d431f141f78477e
- SHA1 ce15b205a69ac0a4b57437b2c4878fa12cf90567
- SHA512 31a3ec0f2cb0b076d0730b7d841aba5ae5296d6e3bb9fb81cf6438a7619cfca755a8e3dff8b436aad52bebd40866bbfce371518da5575d1f817c99b2c62f6438
- MD5 SHA1 SHA512