Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
29-06-2021 22:41
Static task
static1
Behavioral task
behavioral1
Sample
496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe
Resource
win10v20210408
General
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Target
496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe
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Size
122KB
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MD5
a87f7cffde5ae5a31ee93010f6dd844f
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SHA1
381016c06a5af24bb285a1d2d1cb3d9aef3593ea
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SHA256
496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94
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SHA512
0895cd5dd27f0355587f491e54ef7ef794588edb3ea01bb59ff0f789e2e114745d10992570ec110d343cc2039c12b6b178621b3fdd956fcb1b6bc4ec476938d0
Malware Config
Extracted
C:\e6kt4qb5d-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/59DA9045DF999CCE
http://decoder.re/59DA9045DF999CCE
Signatures
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Sodin,Sodinokibi,REvil
Ransomware with advanced anti-analysis and privilege escalation functionality.
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Modifies Windows Firewall 1 TTPs
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Modifies extensions of user files 2 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exedescription ioc process File renamed C:\Users\Admin\Pictures\AddSplit.raw => \??\c:\users\admin\pictures\AddSplit.raw.e6kt4qb5d 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File renamed C:\Users\Admin\Pictures\GrantDisable.raw => \??\c:\users\admin\pictures\GrantDisable.raw.e6kt4qb5d 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\t32mMaunsR = "C:\\Users\\Admin\\AppData\\Local\\Temp\\496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe" 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe -
Enumerates connected drives 3 TTPs 25 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exedescription ioc process File opened (read-only) \??\K: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\N: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\R: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\Z: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\G: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\J: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\M: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\O: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\Q: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\Y: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\F: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\H: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\I: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\S: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\V: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\X: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\D: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\A: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\E: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\P: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\T: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\U: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\W: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\B: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened (read-only) \??\L: 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2q9jq83mj5rwl.bmp" 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe -
Drops file in Program Files directory 35 IoCs
Processes:
496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exedescription ioc process File opened for modification \??\c:\program files\SelectCompare.rm 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File created \??\c:\program files\e6kt4qb5d-readme.txt 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\AssertJoin.ppt 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\EditSwitch.xml 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\ExpandDeny.mp3 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\ReceiveExit.001 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\RestartRedo.css 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File created \??\c:\program files (x86)\tmp 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\DenyInitialize.cfg 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\FindStep.jpg 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\RegisterPublish.wps 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\ResolvePing.m4v 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\ConvertToProtect.dwfx 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\SearchInitialize.css 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\ConfirmClose.emf 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\RequestMerge.rtf 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\ResizeSave.jpe 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File created \??\c:\program files\tmp 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\ImportSuspend.vstx 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\InitializeUninstall.ppt 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\InstallInvoke.ini 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\RemoveConvertTo.rle 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\GetUninstall.wdp 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\OutTest.DVR-MS 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\ResolveDisconnect.vdx 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\SearchMeasure.mpg 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\UnblockInitialize.vdx 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File created \??\c:\program files (x86)\e6kt4qb5d-readme.txt 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\ApproveRevoke.wm 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\CheckpointUnpublish.wma 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\ConnectDisconnect.xml 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\FormatUnlock.WTV 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\ReceiveSync.edrwx 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\SetSync.ppsm 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe File opened for modification \??\c:\program files\SubmitShow.gif 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes:
496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exepid process 1400 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe 1400 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe 1400 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe 1400 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe 1400 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe 1400 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe 1400 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe 1400 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe 1400 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe 1400 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exevssvc.exedescription pid process Token: SeDebugPrivilege 1400 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe Token: SeTakeOwnershipPrivilege 1400 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe Token: SeBackupPrivilege 360 vssvc.exe Token: SeRestorePrivilege 360 vssvc.exe Token: SeAuditPrivilege 360 vssvc.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exedescription pid process target process PID 1400 wrote to memory of 2096 1400 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe netsh.exe PID 1400 wrote to memory of 2096 1400 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe netsh.exe PID 1400 wrote to memory of 2096 1400 496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe"C:\Users\Admin\AppData\Local\Temp\496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe"1⤵
- Modifies extensions of user files
- Adds Run key to start application
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1400 -
C:\Windows\SysWOW64\netsh.exenetsh advfirewall firewall set rule group="Network Discovery" new enable=Yes2⤵PID:2096
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C:\Windows\system32\wbem\unsecapp.exeC:\Windows\system32\wbem\unsecapp.exe -Embedding1⤵PID:2300
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:360
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/2096-114-0x0000000000000000-mapping.dmp