Analysis
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max time kernel
121s -
max time network
132s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
17-06-2021 04:59
Static task
static1
Behavioral task
behavioral1
Sample
b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe
Resource
win10v20210408
General
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Target
b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe
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Size
122KB
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MD5
1e971a9a6f5d19a7383e9f4d7fa7e3e0
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SHA1
62b177d400485f41b2ff5800622f24213c41a557
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SHA256
b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152
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SHA512
4037cc8f0e605327381d7aca13fda4da4f4945ecfccc04ce7d0c0ce651c3e408b33984b9d144c25cb459928e6c15aac9521d31a92567cb24e31c41dd9bb66577
Malware Config
Extracted
C:\be1g8-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/BB570B2F2E8BCAC1
http://decoder.re/BB570B2F2E8BCAC1
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 4 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exedescription ioc process File renamed C:\Users\Admin\Pictures\ExportPush.png => \??\c:\users\admin\pictures\ExportPush.png.be1g8 b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File renamed C:\Users\Admin\Pictures\InitializeImport.crw => \??\c:\users\admin\pictures\InitializeImport.crw.be1g8 b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File renamed C:\Users\Admin\Pictures\RestoreInvoke.tif => \??\c:\users\admin\pictures\RestoreInvoke.tif.be1g8 b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File renamed C:\Users\Admin\Pictures\UnblockShow.tif => \??\c:\users\admin\pictures\UnblockShow.tif.be1g8 b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe -
Enumerates connected drives 3 TTPs 25 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exedescription ioc process File opened (read-only) \??\K: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\M: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\O: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\S: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\T: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\X: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\D: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\E: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\L: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\V: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\Z: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\A: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\F: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\H: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\P: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\Q: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\R: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\Y: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\B: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\G: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\I: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\J: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\N: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\U: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened (read-only) \??\W: b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.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\\77bmm7v98noo.bmp" b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe -
Drops file in Program Files directory 31 IoCs
Processes:
b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exedescription ioc process File opened for modification \??\c:\program files\SwitchResize.snd b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\EnableWrite.zip b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\MeasureSelect.DVR-MS b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\PublishLimit.eps b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\UpdateRegister.vsx b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\DisconnectPush.jfif b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\LockFormat.search-ms b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\UnlockGrant.docm b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\TraceInitialize.asf b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\LockImport.reg b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\MoveSearch.mpeg b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\SyncWatch.png b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\ClearNew.mp3 b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\MergeTrace.svg b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\PushMerge.mid b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File created \??\c:\program files\tmp b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File created \??\c:\program files\be1g8-readme.txt b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\BlockUse.vsx b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\JoinRename.vsdx b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\StopHide.snd b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File created \??\c:\program files (x86)\be1g8-readme.txt b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\ConfirmStep.mhtml b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\TracePush.mpeg2 b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File created \??\c:\program files (x86)\tmp b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\ConfirmGet.png b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\SubmitRestart.easmx b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\ShowUninstall.contact b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\WaitMove.svg b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\ClearCopy.xltx b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\RedoSubmit.3gp b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe File opened for modification \??\c:\program files\SetSelect.php b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.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:
b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exepid process 636 b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe 636 b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe 636 b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe 636 b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe 636 b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe 636 b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe 636 b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe 636 b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe 636 b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe 636 b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exevssvc.exedescription pid process Token: SeDebugPrivilege 636 b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe Token: SeTakeOwnershipPrivilege 636 b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe Token: SeBackupPrivilege 2260 vssvc.exe Token: SeRestorePrivilege 2260 vssvc.exe Token: SeAuditPrivilege 2260 vssvc.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exedescription pid process target process PID 636 wrote to memory of 184 636 b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe netsh.exe PID 636 wrote to memory of 184 636 b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe netsh.exe PID 636 wrote to memory of 184 636 b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe"C:\Users\Admin\AppData\Local\Temp\b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe"1⤵
- Modifies extensions of user files
- 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:636 -
C:\Windows\SysWOW64\netsh.exenetsh advfirewall firewall set rule group="Network Discovery" new enable=Yes2⤵PID:184
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C:\Windows\system32\wbem\unsecapp.exeC:\Windows\system32\wbem\unsecapp.exe -Embedding1⤵PID:820
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2260
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/184-114-0x0000000000000000-mapping.dmp