Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
14-11-2024 01:08
Static task
static1
Behavioral task
behavioral1
Sample
14112024_0101_lavi.msi
Resource
win7-20240903-en
windows7-x64
17 signatures
150 seconds
Behavioral task
behavioral2
Sample
14112024_0101_lavi.msi
Resource
win10v2004-20241007-en
windows10-2004-x64
17 signatures
150 seconds
General
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Target
14112024_0101_lavi.msi
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Size
2.0MB
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MD5
c65899e2519f4ad21fb4b97f0a113362
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SHA1
a1f854c29a69c19949499fca5e24b02b97be46fd
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SHA256
025abbec1724b9180b369fe116da9d90ae47a4996f6a4e28e8a947bac1e0c741
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SHA512
eca93cb24187735ec54d4b4e99675f87f1957e255f59c5432498bbc2c47c77b6ccfdf48861a2f78eb377307ce8f6e6458eaf4b766b96e6c2faea1fb87e3dcbb4
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SSDEEP
49152:/c53YhW8zBQSc0ZnSKBZKumZr7Aej3YOXT7wYyr8lCV:QYY0Zn3K/Ai33XXZ0
Malware Config
Extracted
Family
latrodectus
C2
https://rolefenik.com/test/
https://ergiholim.com/test/
Signatures
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Detects Latrodectus 3 IoCs
Detects Latrodectus v1.4.
resource yara_rule behavioral2/memory/3428-68-0x0000000003000000-0x0000000003015000-memory.dmp family_latrodectus_1_4 behavioral2/memory/1720-63-0x00007FF41EC40000-0x00007FF41EC55000-memory.dmp family_latrodectus_1_4 behavioral2/memory/3428-69-0x0000000003000000-0x0000000003015000-memory.dmp family_latrodectus_1_4 -
Latrodectus family
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Latrodectus loader
Latrodectus is a loader written in C++.
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Blocklisted process makes network request 6 IoCs
flow pid Process 30 1720 rundll32.exe 32 1720 rundll32.exe 34 1720 rundll32.exe 38 1720 rundll32.exe 51 1720 rundll32.exe 60 1720 rundll32.exe -
Enumerates connected drives 3 TTPs 46 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\U: msiexec.exe -
Drops file in Windows directory 12 IoCs
description ioc Process File opened for modification C:\Windows\Installer\MSIDBDB.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSIDC1B.tmp msiexec.exe File created C:\Windows\Installer\SourceHash{BEA6F49C-A398-4148-AFB8-A4A1F2844AFA} msiexec.exe File created C:\Windows\Installer\e57d9f5.msi msiexec.exe File opened for modification C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.log msiexec.exe File opened for modification C:\Windows\Installer\MSIDB8C.tmp msiexec.exe File created C:\Windows\Installer\inprogressinstallinfo.ipi msiexec.exe File opened for modification C:\Windows\Installer\MSIDD25.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSIDDD2.tmp msiexec.exe File opened for modification C:\Windows\Installer\e57d9f5.msi msiexec.exe File opened for modification C:\Windows\Installer\MSIDA62.tmp msiexec.exe File opened for modification C:\Windows\Installer\ msiexec.exe -
Executes dropped EXE 1 IoCs
pid Process 1404 MSIDDD2.tmp -
Loads dropped DLL 6 IoCs
pid Process 1756 MsiExec.exe 1756 MsiExec.exe 1756 MsiExec.exe 1756 MsiExec.exe 4252 rundll32.exe 1720 rundll32.exe -
Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
pid Process 1788 msiexec.exe -
System Location Discovery: System Language Discovery 1 TTPs 3 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 MsiExec.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MSIDDD2.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
Checks SCSI registry key(s) 3 TTPs 5 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters vssvc.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr vssvc.exe Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr\PartitionTableCache = 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 vssvc.exe Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr\SnapshotDataCache = 534e41505041525401000000700000008ec7416a0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 vssvc.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
pid Process 516 msiexec.exe 516 msiexec.exe 1720 rundll32.exe 1720 rundll32.exe 1720 rundll32.exe 1720 rundll32.exe 1720 rundll32.exe 1720 rundll32.exe 1720 rundll32.exe 1720 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 63 IoCs
description pid Process Token: SeShutdownPrivilege 1788 msiexec.exe Token: SeIncreaseQuotaPrivilege 1788 msiexec.exe Token: SeSecurityPrivilege 516 msiexec.exe Token: SeCreateTokenPrivilege 1788 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 1788 msiexec.exe Token: SeLockMemoryPrivilege 1788 msiexec.exe Token: SeIncreaseQuotaPrivilege 1788 msiexec.exe Token: SeMachineAccountPrivilege 1788 msiexec.exe Token: SeTcbPrivilege 1788 msiexec.exe Token: SeSecurityPrivilege 1788 msiexec.exe Token: SeTakeOwnershipPrivilege 1788 msiexec.exe Token: SeLoadDriverPrivilege 1788 msiexec.exe Token: SeSystemProfilePrivilege 1788 msiexec.exe Token: SeSystemtimePrivilege 1788 msiexec.exe Token: SeProfSingleProcessPrivilege 1788 msiexec.exe Token: SeIncBasePriorityPrivilege 1788 msiexec.exe Token: SeCreatePagefilePrivilege 1788 msiexec.exe Token: SeCreatePermanentPrivilege 1788 msiexec.exe Token: SeBackupPrivilege 1788 msiexec.exe Token: SeRestorePrivilege 1788 msiexec.exe Token: SeShutdownPrivilege 1788 msiexec.exe Token: SeDebugPrivilege 1788 msiexec.exe Token: SeAuditPrivilege 1788 msiexec.exe Token: SeSystemEnvironmentPrivilege 1788 msiexec.exe Token: SeChangeNotifyPrivilege 1788 msiexec.exe Token: SeRemoteShutdownPrivilege 1788 msiexec.exe Token: SeUndockPrivilege 1788 msiexec.exe Token: SeSyncAgentPrivilege 1788 msiexec.exe Token: SeEnableDelegationPrivilege 1788 msiexec.exe Token: SeManageVolumePrivilege 1788 msiexec.exe Token: SeImpersonatePrivilege 1788 msiexec.exe Token: SeCreateGlobalPrivilege 1788 msiexec.exe Token: SeBackupPrivilege 2364 vssvc.exe Token: SeRestorePrivilege 2364 vssvc.exe Token: SeAuditPrivilege 2364 vssvc.exe Token: SeBackupPrivilege 516 msiexec.exe Token: SeRestorePrivilege 516 msiexec.exe Token: SeRestorePrivilege 516 msiexec.exe Token: SeTakeOwnershipPrivilege 516 msiexec.exe Token: SeRestorePrivilege 516 msiexec.exe Token: SeTakeOwnershipPrivilege 516 msiexec.exe Token: SeRestorePrivilege 516 msiexec.exe Token: SeTakeOwnershipPrivilege 516 msiexec.exe Token: SeRestorePrivilege 516 msiexec.exe Token: SeTakeOwnershipPrivilege 516 msiexec.exe Token: SeRestorePrivilege 516 msiexec.exe Token: SeTakeOwnershipPrivilege 516 msiexec.exe Token: SeRestorePrivilege 516 msiexec.exe Token: SeTakeOwnershipPrivilege 516 msiexec.exe Token: SeRestorePrivilege 516 msiexec.exe Token: SeTakeOwnershipPrivilege 516 msiexec.exe Token: SeRestorePrivilege 516 msiexec.exe Token: SeTakeOwnershipPrivilege 516 msiexec.exe Token: SeRestorePrivilege 516 msiexec.exe Token: SeTakeOwnershipPrivilege 516 msiexec.exe Token: SeBackupPrivilege 2120 srtasks.exe Token: SeRestorePrivilege 2120 srtasks.exe Token: SeSecurityPrivilege 2120 srtasks.exe Token: SeTakeOwnershipPrivilege 2120 srtasks.exe Token: SeBackupPrivilege 2120 srtasks.exe Token: SeRestorePrivilege 2120 srtasks.exe Token: SeSecurityPrivilege 2120 srtasks.exe Token: SeTakeOwnershipPrivilege 2120 srtasks.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1788 msiexec.exe 1788 msiexec.exe -
Suspicious use of UnmapMainImage 1 IoCs
pid Process 3428 Explorer.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 516 wrote to memory of 2120 516 msiexec.exe 105 PID 516 wrote to memory of 2120 516 msiexec.exe 105 PID 516 wrote to memory of 1756 516 msiexec.exe 107 PID 516 wrote to memory of 1756 516 msiexec.exe 107 PID 516 wrote to memory of 1756 516 msiexec.exe 107 PID 516 wrote to memory of 1404 516 msiexec.exe 108 PID 516 wrote to memory of 1404 516 msiexec.exe 108 PID 516 wrote to memory of 1404 516 msiexec.exe 108 PID 4252 wrote to memory of 1720 4252 rundll32.exe 110 PID 4252 wrote to memory of 1720 4252 rundll32.exe 110 PID 1720 wrote to memory of 3428 1720 rundll32.exe 56 -
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\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of UnmapMainImage
PID:3428 -
C:\Windows\system32\msiexec.exemsiexec.exe /I C:\Users\Admin\AppData\Local\Temp\14112024_0101_lavi.msi2⤵
- Enumerates connected drives
- Event Triggered Execution: Installer Packages
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1788
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\SysWOW64\rundll32.exe" C:\Users\Admin\AppData\Roaming\apptext.dll, Object2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4252 -
C:\Windows\system32\rundll32.exe"C:\Windows\SysWOW64\rundll32.exe" C:\Users\Admin\AppData\Roaming\apptext.dll, Object3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1720
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C:\Windows\system32\msiexec.exeC:\Windows\system32\msiexec.exe /V1⤵
- Enumerates connected drives
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:516 -
C:\Windows\system32\srtasks.exeC:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:22⤵
- Suspicious use of AdjustPrivilegeToken
PID:2120
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C:\Windows\syswow64\MsiExec.exeC:\Windows\syswow64\MsiExec.exe -Embedding E2FC52E0BAC5667685EE620BBAF9891D2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:1756
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C:\Windows\Installer\MSIDDD2.tmp"C:\Windows\Installer\MSIDDD2.tmp" /DontWait C:/Windows/SysWOW64/rundll32.exe C:\Users\Admin\AppData\Roaming\apptext.dll, Object2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1404
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
PID:2364
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD5e1fbd520490d79ec083fed25a2521875
SHA1e6263142f7e4da63e41c1fde796fa530f68aaaa4
SHA256eed8729d563574ff110abe20fabbe45bfdd0a42839b8d3be99aaa28647fc43d2
SHA512d06275a9c2640dfbbe7b1dae55633a13e802c3a331d61e9fb8067b24c9cc338905b1d881f83b726dc5edfd597a374b0b8d332293c3849a1815a246c414ed9669
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Filesize
1.6MB
MD586b57c9deafed093d4b47b03823b4d14
SHA147947da463dd6f4ecf61ae960235a35144e903a8
SHA256f8e3eef1fda5969a7aabcc8fb5cc9f5fe245bbf6cc8e480459977b8e91eab9bd
SHA5125f855ed0a3ecf561c45608d7f4579d6e4b1f1953863e97e0b5fea1f33b38d0e03fef16207d88864d2d936a4e65b677cd259ec248dbf06447b50f9e0488acead3
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Filesize
436KB
MD5475d20c0ea477a35660e3f67ecf0a1df
SHA167340739f51e1134ae8f0ffc5ae9dd710e8e3a08
SHA256426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd
SHA51299525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e
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Filesize
389KB
MD5b9545ed17695a32face8c3408a6a3553
SHA1f6c31c9cd832ae2aebcd88e7b2fa6803ae93fc83
SHA2561e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a
SHA512f6d6dc40dcba5ff091452d7cc257427dcb7ce2a21816b4fec2ee249e63246b64667f5c4095220623533243103876433ef8c12c9b612c0e95fdfffe41d1504e04
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Filesize
24.1MB
MD508b51c12405b7e4a17acc4f9e871a088
SHA1c1b98e7788d367b30d53f70c7fc0f4acf1b7cd0d
SHA25642c66488a710516c49d9fc4af470970ae7d90766d8b41c9eafebc679cee49863
SHA5129fdbee15ac7bc5ebefe1623a6b6dac8fb6f785e6138515dde423439b47baa01776219fa4903d449951a612cfd58bae9f570d126d521a1dfdca0dafc1e96fb520
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\??\Volume{ff55cfe6-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{915916f1-e718-4190-8edd-b46354979235}_OnDiskSnapshotProp
Filesize6KB
MD568143de788a319cc10b0bf36f259bafa
SHA130d3356d8d0b52cf15c5b5d7679ba663ebbc1456
SHA25662e580715d8f8d1cfbccdadf2d2f8771acec3cd306bdfef938ddfea1edca4b85
SHA5122f33e61316db5454a05fd7d5534891226a68ecec7083bcfd5952c9e3469c73c04c45c18afd15e9dbf8c4fa2b60e542a4770aea6d4c005d43001818406ea3b1db