Overview
overview
10Static
static
10solara/run...ra.bat
windows7-x64
3solara/run...ra.bat
windows10-2004-x64
3solara/run.bat
windows7-x64
1solara/run.bat
windows10-2004-x64
1solara/solara.dll
windows7-x64
3solara/solara.dll
windows10-2004-x64
10solara/solara fix.exe
windows7-x64
10solara/solara fix.exe
windows10-2004-x64
10Analysis
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max time kernel
94s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
20-11-2024 10:17
Behavioral task
behavioral1
Sample
solara/run to start solara.bat
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
solara/run to start solara.bat
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
solara/run.bat
Resource
win7-20241010-en
Behavioral task
behavioral4
Sample
solara/run.bat
Resource
win10v2004-20241007-en
Behavioral task
behavioral5
Sample
solara/solara.dll
Resource
win7-20240903-en
Behavioral task
behavioral6
Sample
solara/solara.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral7
Sample
solara/solara fix.exe
Resource
win7-20240708-en
Behavioral task
behavioral8
Sample
solara/solara fix.exe
Resource
win10v2004-20241007-en
General
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Target
solara/solara.dll
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Size
164KB
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MD5
6e3efb83299d800edf1624ecbc0665e7
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SHA1
0bd22f204c5373f1a22d9a02c59f69f354a2cc0d
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SHA256
2ca64feaaf5ab6cf96677fbc2bc0e1995b3bc93472d7af884139aa757240e3f6
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SHA512
dd1675bb15eb8ea2933b25413271117823ad7ff38280e7f552b5201e3a5bef8607a2112df2e24f598449ebfdb570ff9458aba0314ed8819dd4d774ea855e9ad2
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SSDEEP
3072:FWeI5JXJRGpUhFiWjmfb+HP+rnRfU9ECs5p:FWe29/GuzjmfCHWtUiCs5p
Malware Config
Extracted
C:\Users\8elklm5045-readme.txt
sodinokibi
http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/3A594AD85B7E99DF
http://decryptor.top/3A594AD85B7E99DF
Signatures
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Sodin,Sodinokibi,REvil
Ransomware with advanced anti-analysis and privilege escalation functionality.
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Sodinokibi family
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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) \??\N: rundll32.exe File opened (read-only) \??\F: rundll32.exe File opened (read-only) \??\T: rundll32.exe File opened (read-only) \??\U: rundll32.exe 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) \??\H: rundll32.exe File opened (read-only) \??\K: rundll32.exe File opened (read-only) \??\S: rundll32.exe File opened (read-only) \??\X: rundll32.exe File opened (read-only) \??\W: rundll32.exe File opened (read-only) \??\Z: rundll32.exe File opened (read-only) \??\B: 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) \??\Q: rundll32.exe File opened (read-only) \??\D: rundll32.exe File opened (read-only) \??\L: rundll32.exe File opened (read-only) \??\P: rundll32.exe File opened (read-only) \??\R: rundll32.exe File opened (read-only) \??\V: rundll32.exe File opened (read-only) \??\Y: rundll32.exe -
Drops file in Program Files directory 27 IoCs
description ioc Process File created \??\c:\program files\8elklm5045-readme.txt rundll32.exe File opened for modification \??\c:\program files\FindPublish.xltm rundll32.exe File opened for modification \??\c:\program files\MoveUnpublish.zip rundll32.exe File opened for modification \??\c:\program files\UnregisterRemove.dib rundll32.exe File opened for modification \??\c:\program files\AddRead.vsdx rundll32.exe File opened for modification \??\c:\program files\ComparePing.au3 rundll32.exe File opened for modification \??\c:\program files\FormatPush.emz rundll32.exe File opened for modification \??\c:\program files\PublishStop.clr rundll32.exe File opened for modification \??\c:\program files\UseCopy.ttc rundll32.exe File opened for modification \??\c:\program files\AssertConnect.mp2v rundll32.exe File opened for modification \??\c:\program files\GroupSplit.avi rundll32.exe File opened for modification \??\c:\program files\StartResolve.vsdx rundll32.exe File created \??\c:\program files (x86)\8elklm5045-readme.txt rundll32.exe File opened for modification \??\c:\program files\ConfirmOptimize.tiff rundll32.exe File opened for modification \??\c:\program files\DisableReceive.mid rundll32.exe File opened for modification \??\c:\program files\ImportMount.inf rundll32.exe File opened for modification \??\c:\program files\CompleteRename.edrwx rundll32.exe File opened for modification \??\c:\program files\OpenExit.avi rundll32.exe File opened for modification \??\c:\program files\ProtectSuspend.pcx rundll32.exe File opened for modification \??\c:\program files\SetRestart.wmv rundll32.exe File opened for modification \??\c:\program files\SwitchJoin.edrwx rundll32.exe File opened for modification \??\c:\program files\EditGroup.vsd rundll32.exe File opened for modification \??\c:\program files\StartStop.shtml rundll32.exe File opened for modification \??\c:\program files\PushBlock.wma rundll32.exe File opened for modification \??\c:\program files\RevokeRestart.xml rundll32.exe File opened for modification \??\c:\program files\FormatEnter.jpg rundll32.exe File opened for modification \??\c:\program files\JoinOptimize.mov 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 4124 rundll32.exe 4124 rundll32.exe 1672 powershell.exe 1672 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1672 powershell.exe Token: SeBackupPrivilege 3140 vssvc.exe Token: SeRestorePrivilege 3140 vssvc.exe Token: SeAuditPrivilege 3140 vssvc.exe -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 4960 wrote to memory of 4124 4960 rundll32.exe 83 PID 4960 wrote to memory of 4124 4960 rundll32.exe 83 PID 4960 wrote to memory of 4124 4960 rundll32.exe 83 PID 4124 wrote to memory of 1672 4124 rundll32.exe 87 PID 4124 wrote to memory of 1672 4124 rundll32.exe 87 -
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\solara\solara.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4960 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\solara\solara.dll,#12⤵
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4124 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1672
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C:\Windows\system32\wbem\unsecapp.exeC:\Windows\system32\wbem\unsecapp.exe -Embedding1⤵PID:3772
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3140
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
6KB
MD5e6fb505482538733a9a791e2d5985085
SHA1f7d94c7408c935506bf6ed34636e97706b28c296
SHA2566abc8dcc36d25ff52d2a314d6cf96433b68cb6d690f4f3f20681b150df3c2417
SHA512e2e87ed6e241544b9a451a1a244bc6217dc1bf4d589cf5a4296d328111835a3102e784223e9dfd4061b5a916c6fd7f09dc616e27b1df221dc63a032dada1cdf0
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82