Analysis
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max time kernel
150s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
20-05-2023 02:47
Behavioral task
behavioral1
Sample
2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe
Resource
win10v2004-20230220-en
General
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Target
2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe
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Size
166KB
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MD5
e41395a425a5893dd132acf35c4a5b22
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SHA1
caa591c1738e8dc70816efa988ec2740f680e963
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SHA256
96eab1ef06e3aa876934084636ae1f28c95c14a5badcb69be370825206b4b510
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SHA512
b1fa4cc9ca66681ac897bd19a8ce0b1f9733bf1922fdd68888bde133e05b9ae6d872281522686056addf608d4277bb9bd2eae8312ffe5c23d4d6961ef586f4f1
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SSDEEP
3072:1LFrb30BRtBZZg+i2ayy2RjLTuVyu7CJDgoMT3QXRDg+cdN:ZJ0BXScFy2RsQJ8zgBM+cd
Malware Config
Extracted
C:\Recovery\0990v5-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/78237D9A41C8D209
http://decryptor.cc/78237D9A41C8D209
Signatures
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Sodin,Sodinokibi,REvil
Ransomware with advanced anti-analysis and privilege escalation functionality.
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Modifies extensions of user files 13 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exedescription ioc process File renamed C:\Users\Admin\Pictures\SubmitAdd.crw => \??\c:\users\admin\pictures\SubmitAdd.crw.0990v5 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File renamed C:\Users\Admin\Pictures\GroupConnect.raw => \??\c:\users\admin\pictures\GroupConnect.raw.0990v5 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File renamed C:\Users\Admin\Pictures\MoveUnlock.tif => \??\c:\users\admin\pictures\MoveUnlock.tif.0990v5 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File renamed C:\Users\Admin\Pictures\ProtectSuspend.png => \??\c:\users\admin\pictures\ProtectSuspend.png.0990v5 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File renamed C:\Users\Admin\Pictures\CompressStop.tiff => \??\c:\users\admin\pictures\CompressStop.tiff.0990v5 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File renamed C:\Users\Admin\Pictures\EnterConvert.raw => \??\c:\users\admin\pictures\EnterConvert.raw.0990v5 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File renamed C:\Users\Admin\Pictures\ConvertToCheckpoint.tiff => \??\c:\users\admin\pictures\ConvertToCheckpoint.tiff.0990v5 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File renamed C:\Users\Admin\Pictures\UseWatch.crw => \??\c:\users\admin\pictures\UseWatch.crw.0990v5 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File renamed C:\Users\Admin\Pictures\UnblockResume.tiff => \??\c:\users\admin\pictures\UnblockResume.tiff.0990v5 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\users\admin\pictures\CompressStop.tiff 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\users\admin\pictures\ConvertToCheckpoint.tiff 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\users\admin\pictures\UnblockResume.tiff 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File renamed C:\Users\Admin\Pictures\WatchRepair.png => \??\c:\users\admin\pictures\WatchRepair.png.0990v5 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe -
Enumerates connected drives 3 TTPs 25 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exedescription ioc process File opened (read-only) \??\G: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\H: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\O: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\R: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\T: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\V: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\M: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\P: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\W: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\E: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\F: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\J: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\Q: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\X: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\A: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\B: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\I: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\K: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\L: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\N: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\S: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\U: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\Y: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\Z: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened (read-only) \??\D: 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1pz.bmp" 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe -
Drops file in Program Files directory 25 IoCs
Processes:
2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exedescription ioc process File opened for modification \??\c:\program files\StepGet.mp3 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\program files\SyncJoin.wma 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File created \??\c:\program files\0990v5-readme.txt 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File created \??\c:\program files (x86)\0990v5-readme.txt 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\program files\JoinDismount.mpp 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\program files\MergeSync.xlsm 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\program files\PingSearch.vbe 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\program files\RedoStep.rle 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\program files\ConfirmGrant.ppt 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\program files\EnableFormat.pot 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\program files\OpenConnect.vsdx 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\program files\RequestConvertFrom.rmi 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\program files\ResetAdd.mhtml 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\program files\UnregisterConfirm.vstx 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\program files\CheckpointDisable.mid 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\program files\EditClear.xltx 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\program files\MountConnect.mpeg3 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\program files\OptimizeRepair.css 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\program files\UndoCopy.au3 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\program files\ConnectMove.raw 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\program files\InstallOptimize.svg 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\program files\PopGrant.wax 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\program files\RequestSend.mhtml 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\program files\SwitchStop.ini 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe File opened for modification \??\c:\program files\UninstallInvoke.mpv2 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exepowershell.exepid process 1300 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe 1300 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe 2536 powershell.exe 2536 powershell.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exepowershell.exevssvc.exedescription pid process Token: SeDebugPrivilege 1300 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe Token: SeDebugPrivilege 2536 powershell.exe Token: SeBackupPrivilege 2460 vssvc.exe Token: SeRestorePrivilege 2460 vssvc.exe Token: SeAuditPrivilege 2460 vssvc.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exedescription pid process target process PID 1300 wrote to memory of 2536 1300 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe powershell.exe PID 1300 wrote to memory of 2536 1300 2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe powershell.exe -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.exe"C:\Users\Admin\AppData\Local\Temp\2023-05-19_e41395a425a5893dd132acf35c4a5b22_revil.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:1300 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2536
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C:\Windows\system32\wbem\unsecapp.exeC:\Windows\system32\wbem\unsecapp.exe -Embedding1⤵PID:4836
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2460
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
6KB
MD55a9f9d0c785192878bd679a34d7de9d8
SHA1ab8e4fddcf196d23f1edb1847b813597856c2a32
SHA256d1dd51027ff4bb58ccb7b7c3b54a80a8055a927a6d4e844cbbd10aef7a48e1fa
SHA512e9d935befc03e7f6b76a4ff682b72fb43e500513c8ac1a9049540a9ffd717b24fa9179c56cc8e56571b948426c39f0cf9167fb4492010cf0110fe1c853ed7ca8
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82