Analysis
-
max time kernel
149s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
03-06-2024 03:26
Static task
static1
Behavioral task
behavioral1
Sample
906476f7f37236ab87319d477afec56f_JaffaCakes118.dll
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
906476f7f37236ab87319d477afec56f_JaffaCakes118.dll
Resource
win10v2004-20240508-en
General
-
Target
906476f7f37236ab87319d477afec56f_JaffaCakes118.dll
-
Size
116KB
-
MD5
906476f7f37236ab87319d477afec56f
-
SHA1
16485c511e413cc33b4fe6ef3c95b65198cdd9f3
-
SHA256
b8dc282b15526821326ae7158f5e4e895a874fc15499d102d59e819aa78d5800
-
SHA512
8c893d42f90a4d63b6261c8644bb97807052fa1570693b3cc179566b7a14f28590d7d2e4e5062cbb731617f83c46c0333d46a45a5ad2138576b95867fbf323ce
-
SSDEEP
1536:CPp8kFF4+utlznGEvCrUmUYwGOmpX2yaICS4Aa7A2Ow/TGXiPt50c0HL:8vnuGqfGOqVB2bSXiVW5
Malware Config
Extracted
C:\Users\cv4shj9-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/544CFD610482C335
http://decryptor.cc/544CFD610482C335
Signatures
-
Sodin,Sodinokibi,REvil
Ransomware with advanced anti-analysis and privilege escalation functionality.
-
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\A: rundll32.exe File opened (read-only) \??\E: rundll32.exe File opened (read-only) \??\G: rundll32.exe File opened (read-only) \??\I: rundll32.exe File opened (read-only) \??\O: rundll32.exe File opened (read-only) \??\R: rundll32.exe File opened (read-only) \??\V: rundll32.exe File opened (read-only) \??\W: rundll32.exe File opened (read-only) \??\X: rundll32.exe File opened (read-only) \??\Y: rundll32.exe File opened (read-only) \??\J: rundll32.exe File opened (read-only) \??\N: rundll32.exe File opened (read-only) \??\U: rundll32.exe File opened (read-only) \??\H: rundll32.exe File opened (read-only) \??\K: rundll32.exe File opened (read-only) \??\L: rundll32.exe File opened (read-only) \??\S: rundll32.exe File opened (read-only) \??\T: rundll32.exe File opened (read-only) \??\B: rundll32.exe File opened (read-only) \??\M: rundll32.exe File opened (read-only) \??\P: rundll32.exe File opened (read-only) \??\Q: rundll32.exe File opened (read-only) \??\Z: rundll32.exe -
Drops file in Program Files directory 32 IoCs
description ioc Process File opened for modification \??\c:\program files\ReadNew.m1v rundll32.exe File opened for modification \??\c:\program files\ResolveEnable.mpeg rundll32.exe File opened for modification \??\c:\program files\CopyExport.m4a rundll32.exe File opened for modification \??\c:\program files\OpenClear.odt rundll32.exe File created \??\c:\program files\cv4shj9-readme.txt rundll32.exe File opened for modification \??\c:\program files\CompleteUnblock.css rundll32.exe File opened for modification \??\c:\program files\OptimizeSubmit.htm rundll32.exe File opened for modification \??\c:\program files\SendTrace.mpeg3 rundll32.exe File opened for modification \??\c:\program files\StartUse.avi rundll32.exe File opened for modification \??\c:\program files\SubmitEdit.tif rundll32.exe File opened for modification \??\c:\program files\SyncInstall.odt rundll32.exe File opened for modification \??\c:\program files\DisconnectTest.avi rundll32.exe File opened for modification \??\c:\program files\EnterInstall.temp rundll32.exe File opened for modification \??\c:\program files\CompleteWait.mpv2 rundll32.exe File opened for modification \??\c:\program files\FormatConvert.DVR rundll32.exe File opened for modification \??\c:\program files\UnblockSync.3gpp rundll32.exe File created \??\c:\program files (x86)\cv4shj9-readme.txt rundll32.exe File opened for modification \??\c:\program files\CompleteRestart.dib rundll32.exe File opened for modification \??\c:\program files\RegisterMount.ini rundll32.exe File opened for modification \??\c:\program files\StepClose.ppt rundll32.exe File opened for modification \??\c:\program files\SuspendRepair.mpeg3 rundll32.exe File opened for modification \??\c:\program files\AssertExpand.js rundll32.exe File opened for modification \??\c:\program files\PopMerge.avi rundll32.exe File opened for modification \??\c:\program files\ExpandApprove.potm rundll32.exe File opened for modification \??\c:\program files\SendSave.tiff rundll32.exe File opened for modification \??\c:\program files\StopBackup.jfif rundll32.exe File opened for modification \??\c:\program files\UnblockTrace.vdx rundll32.exe File opened for modification \??\c:\program files\BlockSend.xhtml rundll32.exe File opened for modification \??\c:\program files\CheckpointOptimize.vdw rundll32.exe File opened for modification \??\c:\program files\ExportSplit.emf rundll32.exe File opened for modification \??\c:\program files\AddExit.MTS rundll32.exe File opened for modification \??\c:\program files\ClearOptimize.vdw rundll32.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4776 rundll32.exe 4776 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
description pid Process Token: SeDebugPrivilege 4776 rundll32.exe Token: SeTakeOwnershipPrivilege 4776 rundll32.exe Token: SeBackupPrivilege 5100 vssvc.exe Token: SeRestorePrivilege 5100 vssvc.exe Token: SeAuditPrivilege 5100 vssvc.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4004 wrote to memory of 4776 4004 rundll32.exe 85 PID 4004 wrote to memory of 4776 4004 rundll32.exe 85 PID 4004 wrote to memory of 4776 4004 rundll32.exe 85 -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\906476f7f37236ab87319d477afec56f_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4004 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\906476f7f37236ab87319d477afec56f_JaffaCakes118.dll,#12⤵
- Enumerates connected drives
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4776
-
-
C:\Windows\system32\wbem\unsecapp.exeC:\Windows\system32\wbem\unsecapp.exe -Embedding1⤵PID:4884
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:5100
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
6KB
MD5fe6e06f65ee4bcb2bdd34354b1d0b2ae
SHA1ea0f7561d9cf052326ec59486de550e76205fc24
SHA2569c65aeb7a726c8641812ec91af342e5782dce6f72d268e5040f1ce6591d6bbd5
SHA51258d044555643047aed942e77fd20eaa94209dc3a04aea9404e61775ba2dd61dc8e9c1431d0a653b66c93306a579ace7b479f3d6f613f0ea4ae4056265262e5cc