Analysis
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max time kernel
94s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
25-01-2025 07:28
Behavioral task
behavioral1
Sample
2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe
Resource
win10v2004-20241007-en
General
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Target
2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe
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Size
22KB
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MD5
863737214d220568a990f84cdb3391a6
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SHA1
676ae438496b149546571fd1ebce6f0f13a4d774
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SHA256
dabf725f50ced64032ce761b98ee38417ae27f2bcda5ea0b36f9350f0d6c053d
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SHA512
b0ae574d07a87bff65ec58b82b79db07817b752f05ffea62bf4b29524c684f9bebaab4d9008e71e1a28c552946047f82556b746f4dd26928ec2c594708b7296f
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SSDEEP
384:03MLWHn3kI3fcSxlR2Wp5x4+CHJ7r91Czxb5MeU:Mn3kIE69pf4+y7r9ixb6eU
Malware Config
Extracted
C:\Users\Admin\Desktop\read_it.txt
chaos
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 2 IoCs
resource yara_rule behavioral2/memory/1068-1-0x00000000004B0000-0x00000000004BC000-memory.dmp family_chaos behavioral2/files/0x0008000000023c9b-6.dat family_chaos -
Chaos family
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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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation svchost.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\read_it.txt svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 1788 svchost.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops desktop.ini file(s) 34 IoCs
description ioc Process File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\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\Favorites\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\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\Admin\Desktop\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\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\Links\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\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\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\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\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-2878641211-696417878-3864914810-1000\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\Favorites\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\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\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\OneDrive\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\Accessories\desktop.ini svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2668 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1788 svchost.exe -
Suspicious behavior: EnumeratesProcesses 51 IoCs
pid Process 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe 1788 svchost.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe Token: SeDebugPrivilege 1788 svchost.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1068 wrote to memory of 1788 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 83 PID 1068 wrote to memory of 1788 1068 2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe 83 PID 1788 wrote to memory of 2668 1788 svchost.exe 84 PID 1788 wrote to memory of 2668 1788 svchost.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2025-01-25_863737214d220568a990f84cdb3391a6_chaos_destroyer_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1068 -
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.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:1788 -
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:2668
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
22KB
MD5863737214d220568a990f84cdb3391a6
SHA1676ae438496b149546571fd1ebce6f0f13a4d774
SHA256dabf725f50ced64032ce761b98ee38417ae27f2bcda5ea0b36f9350f0d6c053d
SHA512b0ae574d07a87bff65ec58b82b79db07817b752f05ffea62bf4b29524c684f9bebaab4d9008e71e1a28c552946047f82556b746f4dd26928ec2c594708b7296f
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Filesize
964B
MD54217b8b83ce3c3f70029a056546f8fd0
SHA1487cdb5733d073a0427418888e8f7070fe782a03
SHA2567d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
SHA5122a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740