Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240705-en -
resource tags
arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system -
submitted
17-08-2024 04:28
Static task
static1
Behavioral task
behavioral1
Sample
a133909376f0499059642768d4f73a95_JaffaCakes118.dll
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
a133909376f0499059642768d4f73a95_JaffaCakes118.dll
Resource
win10v2004-20240802-en
General
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Target
a133909376f0499059642768d4f73a95_JaffaCakes118.dll
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Size
116KB
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MD5
a133909376f0499059642768d4f73a95
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SHA1
fda53c8b4d684b7454d204ed395934159c091133
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SHA256
4270895e0d3973d98d5014e299f9e9a4dee0e528d37adbbcf47dc52ca483fd74
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SHA512
f205002c4059a98c1b917be8644c9f1d02ec4ccdf10d35e7bb34d75f47aca72f16400dce024842dd4694d9557bdf20d5dece66dd2be112bade22d0101f8a6ae0
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SSDEEP
1536:CPp8kFF4+utlznGEvCrUmUYwGOmpX2yaICS4Aa7AJlwUHhDc8j5rXE:8vnuGqfGOqVBJi4c8jZXE
Malware Config
Extracted
C:\Users\05x18na8-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/3489F54E265ADB5D
http://decryptor.cc/3489F54E265ADB5D
Signatures
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Sodin,Sodinokibi,REvil
Ransomware with advanced anti-analysis and privilege escalation functionality.
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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) \??\G: rundll32.exe File opened (read-only) \??\P: rundll32.exe File opened (read-only) \??\Q: rundll32.exe File opened (read-only) \??\V: rundll32.exe File opened (read-only) \??\R: rundll32.exe File opened (read-only) \??\A: rundll32.exe File opened (read-only) \??\E: rundll32.exe File opened (read-only) \??\H: rundll32.exe File opened (read-only) \??\I: rundll32.exe File opened (read-only) \??\J: rundll32.exe File opened (read-only) \??\M: rundll32.exe File opened (read-only) \??\O: rundll32.exe File opened (read-only) \??\U: rundll32.exe File opened (read-only) \??\K: rundll32.exe File opened (read-only) \??\L: rundll32.exe File opened (read-only) \??\N: rundll32.exe File opened (read-only) \??\S: rundll32.exe File opened (read-only) \??\T: rundll32.exe File opened (read-only) \??\X: rundll32.exe File opened (read-only) \??\B: rundll32.exe File opened (read-only) \??\W: rundll32.exe File opened (read-only) \??\Y: rundll32.exe File opened (read-only) \??\Z: rundll32.exe -
Drops file in Program Files directory 17 IoCs
description ioc Process File opened for modification \??\c:\program files\EditClose.xlt rundll32.exe File opened for modification \??\c:\program files\MeasureOut.MTS rundll32.exe File opened for modification \??\c:\program files\SuspendUpdate.wmv rundll32.exe File created \??\c:\program files (x86)\microsoft sql server compact edition\05x18na8-readme.txt rundll32.exe File created \??\c:\program files (x86)\microsoft sql server compact edition\v3.5\05x18na8-readme.txt rundll32.exe File opened for modification \??\c:\program files\AssertNew.midi rundll32.exe File opened for modification \??\c:\program files\ConvertToPop.raw rundll32.exe File opened for modification \??\c:\program files\SetDeny.M2V rundll32.exe File opened for modification \??\c:\program files\SplitGrant.docx rundll32.exe File created \??\c:\program files\05x18na8-readme.txt rundll32.exe File opened for modification \??\c:\program files\ConvertJoin.xla rundll32.exe File opened for modification \??\c:\program files\MountTest.wps rundll32.exe File opened for modification \??\c:\program files\OpenConfirm.vssx rundll32.exe File opened for modification \??\c:\program files\WaitInstall.edrwx rundll32.exe File created \??\c:\program files (x86)\05x18na8-readme.txt rundll32.exe File opened for modification \??\c:\program files\CopyRemove.zip rundll32.exe File opened for modification \??\c:\program files\LockUninstall.001 rundll32.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2336 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
description pid Process Token: SeDebugPrivilege 2336 rundll32.exe Token: SeTakeOwnershipPrivilege 2336 rundll32.exe Token: SeBackupPrivilege 3064 vssvc.exe Token: SeRestorePrivilege 3064 vssvc.exe Token: SeAuditPrivilege 3064 vssvc.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2752 wrote to memory of 2336 2752 rundll32.exe 30 PID 2752 wrote to memory of 2336 2752 rundll32.exe 30 PID 2752 wrote to memory of 2336 2752 rundll32.exe 30 PID 2752 wrote to memory of 2336 2752 rundll32.exe 30 PID 2752 wrote to memory of 2336 2752 rundll32.exe 30 PID 2752 wrote to memory of 2336 2752 rundll32.exe 30 PID 2752 wrote to memory of 2336 2752 rundll32.exe 30 -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\a133909376f0499059642768d4f73a95_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2752 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\a133909376f0499059642768d4f73a95_JaffaCakes118.dll,#12⤵
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2336
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C:\Windows\system32\wbem\unsecapp.exeC:\Windows\system32\wbem\unsecapp.exe -Embedding1⤵PID:1864
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3064
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
6KB
MD5818fd0b5793f6afeb4580cc635af5ebd
SHA14bbeafebf09ab83b885a8c18b535a4871517a0e9
SHA256648d55b598d2734c49bd4933fed98b6b155f5b413ae3a31b826ec2c78ebc44ce
SHA512be912cd07022e9b9d5b1f1feba5ea4544b165d2aa2108cf7d33a184d343cf44b8530b34b2c313032474e71bf5163f87ac90851d15323a6bef6986fb2dc027bd6