Analysis
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max time kernel
153s -
max time network
179s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
24-01-2022 01:25
Static task
static1
Behavioral task
behavioral1
Sample
a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe
Resource
win10-en-20211208
General
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Target
a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe
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Size
164KB
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MD5
6342ac7d66df093a645fc78d96b05d6a
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SHA1
d27ec2d1f1ad867a18d6307afcea9c6a8e9535e8
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SHA256
a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1
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SHA512
78fe3b58645301404f14229e45117dc3792afcb45a3fe5f748c367177a267773c2f1adf9aba3e909c5ef19264d8eb581fc0da2f28bd46fdbe9a80609ce573d62
Malware Config
Extracted
C:\76wijj54-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/BA4BA36A39EA9848
http://decryptor.top/BA4BA36A39EA9848
Signatures
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Sodin,Sodinokibi,REvil
Ransomware with advanced anti-analysis and privilege escalation functionality.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies extensions of user files 10 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exedescription ioc process File opened for modification \??\c:\users\admin\pictures\OpenRedo.tiff a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File renamed C:\Users\Admin\Pictures\OpenRedo.tiff => \??\c:\users\admin\pictures\OpenRedo.tiff.76wijj54 a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File renamed C:\Users\Admin\Pictures\WriteRename.crw => \??\c:\users\admin\pictures\WriteRename.crw.76wijj54 a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File renamed C:\Users\Admin\Pictures\StartInstall.tif => \??\c:\users\admin\pictures\StartInstall.tif.76wijj54 a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened for modification \??\c:\users\admin\pictures\RegisterConfirm.tiff a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened for modification \??\c:\users\admin\pictures\ResetOptimize.tiff a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File renamed C:\Users\Admin\Pictures\HideRename.raw => \??\c:\users\admin\pictures\HideRename.raw.76wijj54 a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File renamed C:\Users\Admin\Pictures\ImportRevoke.tif => \??\c:\users\admin\pictures\ImportRevoke.tif.76wijj54 a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File renamed C:\Users\Admin\Pictures\RegisterConfirm.tiff => \??\c:\users\admin\pictures\RegisterConfirm.tiff.76wijj54 a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File renamed C:\Users\Admin\Pictures\ResetOptimize.tiff => \??\c:\users\admin\pictures\ResetOptimize.tiff.76wijj54 a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe -
Enumerates connected drives 3 TTPs 25 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exedescription ioc process File opened (read-only) \??\M: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\P: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\Q: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\B: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\L: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\S: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\W: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\X: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\D: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\A: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\G: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\H: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\J: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\K: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\R: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\T: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\U: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\F: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\Z: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\Y: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\I: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\N: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\O: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\V: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened (read-only) \??\E: a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\q38b4i1.bmp" a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe -
Drops file in Program Files directory 24 IoCs
Processes:
a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exedescription ioc process File opened for modification \??\c:\program files\NewApprove.rtf a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened for modification \??\c:\program files\OpenConvertFrom.3gp2 a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened for modification \??\c:\program files\RenameOptimize.odt a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened for modification \??\c:\program files\UnlockEdit.reg a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened for modification \??\c:\program files\CompressSet.svg a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened for modification \??\c:\program files\DenyGet.mid a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened for modification \??\c:\program files\ReadCopy.eprtx a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened for modification \??\c:\program files\ReceiveJoin.otf a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened for modification \??\c:\program files\RestartTest.mpp a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened for modification \??\c:\program files\UndoPing.pdf a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File created \??\c:\program files\76wijj54-readme.txt a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened for modification \??\c:\program files\CompareComplete.M2TS a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened for modification \??\c:\program files\HideTest.xml a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened for modification \??\c:\program files\StartPop.php a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened for modification \??\c:\program files\UnblockSubmit.potx a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened for modification \??\c:\program files\UnlockComplete.au3 a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened for modification \??\c:\program files\UnregisterConvertTo.001 a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File created \??\c:\program files (x86)\76wijj54-readme.txt a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened for modification \??\c:\program files\DebugReset.pptx a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened for modification \??\c:\program files\DismountPublish.vbe a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened for modification \??\c:\program files\GrantSync.vssx a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened for modification \??\c:\program files\SaveRestart.wmv a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened for modification \??\c:\program files\StepPublish.rle a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe File opened for modification \??\c:\program files\SubmitConfirm.docx a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exepid process 756 vssadmin.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exepid process 2700 a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe 2700 a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
vssvc.exedescription pid process Token: SeBackupPrivilege 376 vssvc.exe Token: SeRestorePrivilege 376 vssvc.exe Token: SeAuditPrivilege 376 vssvc.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.execmd.exedescription pid process target process PID 2700 wrote to memory of 2772 2700 a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe cmd.exe PID 2700 wrote to memory of 2772 2700 a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe cmd.exe PID 2700 wrote to memory of 2772 2700 a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe cmd.exe PID 2772 wrote to memory of 756 2772 cmd.exe vssadmin.exe PID 2772 wrote to memory of 756 2772 cmd.exe vssadmin.exe PID 2772 wrote to memory of 756 2772 cmd.exe vssadmin.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.exe"C:\Users\Admin\AppData\Local\Temp\a428048d44c81b233faa9024dc3153f0524bb5dab600c6e847431a69c3fd5ab1.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 WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe Delete Shadows /All /Quiet & bcdedit /set {default} recoveryenabled No & bcdedit /set {default} bootstatuspolicy ignoreallfailures2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\vssadmin.exevssadmin.exe Delete Shadows /All /Quiet3⤵
- Interacts with shadow copies
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C:\Windows\system32\wbem\unsecapp.exeC:\Windows\system32\wbem\unsecapp.exe -Embedding1⤵
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken