Analysis
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max time kernel
143s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
29-05-2024 01:26
Behavioral task
behavioral1
Sample
2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe
Resource
win10v2004-20240226-en
General
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Target
2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe
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Size
24KB
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MD5
bf6068f9bdc676df304694e1c181334f
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SHA1
bb4da8a8a76714a63550496ba5dcc06eaec1162e
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SHA256
bae187a00945be87c8f627b2b6943360c67eec4cbf518d46790f6898f9f64e17
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SHA512
e4c614e71835e86c97928e9e1319d33f0a660dc1b70663d69d1d4eac77be4c1bfb9dfcb810e2540a3b1851052c6cf8f0080f84c96e5e924a8e7662792a5a676c
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SSDEEP
384:q3Mg/bqo2tLRx+BZpk6u+qIJar91C8uKFR+WweV:Qqo2nxeZpk6uJAar9puKF4eV
Malware Config
Extracted
C:\Users\Admin\Documents\read_it.txt
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/4076-1-0x0000000000F50000-0x0000000000F5C000-memory.dmp family_chaos behavioral2/files/0x0008000000023272-6.dat family_chaos -
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Detects command variations typically used by ransomware 2 IoCs
resource yara_rule behavioral2/memory/4076-1-0x0000000000F50000-0x0000000000F5C000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware behavioral2/files/0x0008000000023272-6.dat INDICATOR_SUSPICIOUS_GENRansomware -
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 3588 bcdedit.exe 2636 bcdedit.exe -
pid Process 864 wbadmin.exe -
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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\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 2072 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 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\Links\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\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\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\Public\Videos\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\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\Admin\Documents\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\Internet Explorer\Quick Launch\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\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\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\Videos\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3808065738-1666277613-1125846146-1000\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\Music\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\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\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\Contacts\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 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks SCSI registry key(s) 3 TTPs 4 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000 vds.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName vds.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_DADY&PROD_DADY_DVD-ROM\4&215468A5&0&010000 vds.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_DADY_DVD-ROM\4&215468a5&0&010000\FriendlyName vds.exe -
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 3576 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 4336 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2072 svchost.exe -
Suspicious behavior: EnumeratesProcesses 49 IoCs
pid Process 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe 2072 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe Token: SeDebugPrivilege 2072 svchost.exe Token: SeBackupPrivilege 4988 vssvc.exe Token: SeRestorePrivilege 4988 vssvc.exe Token: SeAuditPrivilege 4988 vssvc.exe Token: SeIncreaseQuotaPrivilege 4584 WMIC.exe Token: SeSecurityPrivilege 4584 WMIC.exe Token: SeTakeOwnershipPrivilege 4584 WMIC.exe Token: SeLoadDriverPrivilege 4584 WMIC.exe Token: SeSystemProfilePrivilege 4584 WMIC.exe Token: SeSystemtimePrivilege 4584 WMIC.exe Token: SeProfSingleProcessPrivilege 4584 WMIC.exe Token: SeIncBasePriorityPrivilege 4584 WMIC.exe Token: SeCreatePagefilePrivilege 4584 WMIC.exe Token: SeBackupPrivilege 4584 WMIC.exe Token: SeRestorePrivilege 4584 WMIC.exe Token: SeShutdownPrivilege 4584 WMIC.exe Token: SeDebugPrivilege 4584 WMIC.exe Token: SeSystemEnvironmentPrivilege 4584 WMIC.exe Token: SeRemoteShutdownPrivilege 4584 WMIC.exe Token: SeUndockPrivilege 4584 WMIC.exe Token: SeManageVolumePrivilege 4584 WMIC.exe Token: 33 4584 WMIC.exe Token: 34 4584 WMIC.exe Token: 35 4584 WMIC.exe Token: 36 4584 WMIC.exe Token: SeIncreaseQuotaPrivilege 4584 WMIC.exe Token: SeSecurityPrivilege 4584 WMIC.exe Token: SeTakeOwnershipPrivilege 4584 WMIC.exe Token: SeLoadDriverPrivilege 4584 WMIC.exe Token: SeSystemProfilePrivilege 4584 WMIC.exe Token: SeSystemtimePrivilege 4584 WMIC.exe Token: SeProfSingleProcessPrivilege 4584 WMIC.exe Token: SeIncBasePriorityPrivilege 4584 WMIC.exe Token: SeCreatePagefilePrivilege 4584 WMIC.exe Token: SeBackupPrivilege 4584 WMIC.exe Token: SeRestorePrivilege 4584 WMIC.exe Token: SeShutdownPrivilege 4584 WMIC.exe Token: SeDebugPrivilege 4584 WMIC.exe Token: SeSystemEnvironmentPrivilege 4584 WMIC.exe Token: SeRemoteShutdownPrivilege 4584 WMIC.exe Token: SeUndockPrivilege 4584 WMIC.exe Token: SeManageVolumePrivilege 4584 WMIC.exe Token: 33 4584 WMIC.exe Token: 34 4584 WMIC.exe Token: 35 4584 WMIC.exe Token: 36 4584 WMIC.exe Token: SeBackupPrivilege 872 wbengine.exe Token: SeRestorePrivilege 872 wbengine.exe Token: SeSecurityPrivilege 872 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 4076 wrote to memory of 2072 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 93 PID 4076 wrote to memory of 2072 4076 2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe 93 PID 2072 wrote to memory of 4324 2072 svchost.exe 99 PID 2072 wrote to memory of 4324 2072 svchost.exe 99 PID 4324 wrote to memory of 3576 4324 cmd.exe 102 PID 4324 wrote to memory of 3576 4324 cmd.exe 102 PID 4324 wrote to memory of 4584 4324 cmd.exe 106 PID 4324 wrote to memory of 4584 4324 cmd.exe 106 PID 2072 wrote to memory of 4116 2072 svchost.exe 107 PID 2072 wrote to memory of 4116 2072 svchost.exe 107 PID 4116 wrote to memory of 3588 4116 cmd.exe 109 PID 4116 wrote to memory of 3588 4116 cmd.exe 109 PID 4116 wrote to memory of 2636 4116 cmd.exe 110 PID 4116 wrote to memory of 2636 4116 cmd.exe 110 PID 2072 wrote to memory of 3816 2072 svchost.exe 111 PID 2072 wrote to memory of 3816 2072 svchost.exe 111 PID 3816 wrote to memory of 864 3816 cmd.exe 114 PID 3816 wrote to memory of 864 3816 cmd.exe 114 PID 2072 wrote to memory of 4336 2072 svchost.exe 118 PID 2072 wrote to memory of 4336 2072 svchost.exe 118 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-29_bf6068f9bdc676df304694e1c181334f_chaos_destroyer_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4076 -
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:2072 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:4324 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:3576
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:4584
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no3⤵
- Suspicious use of WriteProcessMemory
PID:4116 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:3588
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2636
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:3816 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:864
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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:4336
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4988
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:872
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:3848
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:4164
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3948 --field-trial-handle=2656,i,16940681401824032220,151921362336696246,262144 --variations-seed-version /prefetch:81⤵PID:3832
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
24KB
MD5bf6068f9bdc676df304694e1c181334f
SHA1bb4da8a8a76714a63550496ba5dcc06eaec1162e
SHA256bae187a00945be87c8f627b2b6943360c67eec4cbf518d46790f6898f9f64e17
SHA512e4c614e71835e86c97928e9e1319d33f0a660dc1b70663d69d1d4eac77be4c1bfb9dfcb810e2540a3b1851052c6cf8f0080f84c96e5e924a8e7662792a5a676c
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Filesize
1KB
MD5b44032c617da293399ccb8020693ae76
SHA1ce55aa98e23b722e50b6f8e5a7cc74b94686b42b
SHA2562b5347316290b7ef6d68c19bf2860c8b5224e2bfc0cf3330942bf80b6c1751f4
SHA512fc1efa6c20f076789db7c6141a7f4400ebb7428d719b5b192d25e22c3f0542a19acac38b4f814327a65e22fc60285af3e689dc60e91208dadfd0bb50f64abea2