Analysis
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max time kernel
139s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20230831-en -
resource tags
arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system -
submitted
10/09/2023, 15:01
Behavioral task
behavioral1
Sample
2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe
Resource
win10v2004-20230831-en
General
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Target
2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe
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Size
22KB
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MD5
768e86ceb8d6d2eb2aa19f2853819d82
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SHA1
b36371f518a0f82a7debd4140a3309245819b2da
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SHA256
3cf6a9a95f0e4237aa4c80b67922fc3f4d0e2bf9f15830c0333b910df8cbe834
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SHA512
c62e29064134ce427cb7a6a8c3eebe12f276107f3fcf5298e06b935e2c301436fd2a931efaf0dcc744fc70e8d255a6362646de50bb63f5899b222f08ccd64dfe
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SSDEEP
384:R3MLWHn3kIGPcSxlR2CpkXsQJHdtKXRIJtwr91Czxb5heG:xn3kIF6jpkNRfKXRACr9ixb7eG
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 4 IoCs
resource yara_rule behavioral2/memory/4256-0-0x00000000008C0000-0x00000000008CC000-memory.dmp family_chaos behavioral2/files/0x0008000000023289-7.dat family_chaos behavioral2/files/0x0008000000023289-12.dat family_chaos behavioral2/files/0x0008000000023289-13.dat family_chaos -
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-1-5-21-1980726966-773384374-2129981223-1000\Control Panel\International\Geo\Nation 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe Key value queried \REGISTRY\USER\S-1-5-21-1980726966-773384374-2129981223-1000\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 4676 svchost.exe -
Reads user/profile data of web browsers 2 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 F:\$RECYCLE.BIN\S-1-5-21-1980726966-773384374-2129981223-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\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\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\Accessories\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\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\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\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\Desktop\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\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\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\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\Music\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\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\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\Admin\Pictures\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\AppData\Roaming\Microsoft\Windows\Libraries\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-1-5-21-1980726966-773384374-2129981223-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2560 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4676 svchost.exe -
Suspicious behavior: EnumeratesProcesses 55 IoCs
pid Process 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe 4676 svchost.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe Token: SeDebugPrivilege 4676 svchost.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4256 wrote to memory of 4676 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 93 PID 4256 wrote to memory of 4676 4256 2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe 93 PID 4676 wrote to memory of 2560 4676 svchost.exe 97 PID 4676 wrote to memory of 2560 4676 svchost.exe 97
Processes
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C:\Users\Admin\AppData\Local\Temp\2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe"C:\Users\Admin\AppData\Local\Temp\2023-08-24_768e86ceb8d6d2eb2aa19f2853819d82_destroyer_wannacry_JC.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4256 -
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:4676 -
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:2560
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
964B
MD54217b8b83ce3c3f70029a056546f8fd0
SHA1487cdb5733d073a0427418888e8f7070fe782a03
SHA2567d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
SHA5122a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740
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Filesize
22KB
MD5768e86ceb8d6d2eb2aa19f2853819d82
SHA1b36371f518a0f82a7debd4140a3309245819b2da
SHA2563cf6a9a95f0e4237aa4c80b67922fc3f4d0e2bf9f15830c0333b910df8cbe834
SHA512c62e29064134ce427cb7a6a8c3eebe12f276107f3fcf5298e06b935e2c301436fd2a931efaf0dcc744fc70e8d255a6362646de50bb63f5899b222f08ccd64dfe
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Filesize
22KB
MD5768e86ceb8d6d2eb2aa19f2853819d82
SHA1b36371f518a0f82a7debd4140a3309245819b2da
SHA2563cf6a9a95f0e4237aa4c80b67922fc3f4d0e2bf9f15830c0333b910df8cbe834
SHA512c62e29064134ce427cb7a6a8c3eebe12f276107f3fcf5298e06b935e2c301436fd2a931efaf0dcc744fc70e8d255a6362646de50bb63f5899b222f08ccd64dfe
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Filesize
22KB
MD5768e86ceb8d6d2eb2aa19f2853819d82
SHA1b36371f518a0f82a7debd4140a3309245819b2da
SHA2563cf6a9a95f0e4237aa4c80b67922fc3f4d0e2bf9f15830c0333b910df8cbe834
SHA512c62e29064134ce427cb7a6a8c3eebe12f276107f3fcf5298e06b935e2c301436fd2a931efaf0dcc744fc70e8d255a6362646de50bb63f5899b222f08ccd64dfe
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Filesize
964B
MD54217b8b83ce3c3f70029a056546f8fd0
SHA1487cdb5733d073a0427418888e8f7070fe782a03
SHA2567d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
SHA5122a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740