Malware Analysis Report

2025-04-03 11:08

Sample ID 241109-1x27pawlhp
Target NexusFN Installer.msi
SHA256 370aa26e8145e8c211bb9ceefcce57004795d79e6d5c5e0ab2d4bf56252e2e2a
Tags
discovery
score
6/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
6/10

SHA256

370aa26e8145e8c211bb9ceefcce57004795d79e6d5c5e0ab2d4bf56252e2e2a

Threat Level: Shows suspicious behavior

The file NexusFN Installer.msi was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery

Enumerates connected drives

Loads dropped DLL

Drops file in Windows directory

System Location Discovery: System Language Discovery

Suspicious use of FindShellTrayWindow

Uses Volume Shadow Copy service COM API

Checks SCSI registry key(s)

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-09 22:02

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-09 22:02

Reported

2024-11-09 22:05

Platform

win11-20241023-en

Max time kernel

143s

Max time network

152s

Command Line

msiexec.exe /I "C:\Users\Admin\AppData\Local\Temp\NexusFN Installer.msi"

Signatures

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\T: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\X: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\O: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\Q: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\R: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\H: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\P: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\Q: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\W: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\S: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\U: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\V: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\I: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\J: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\L: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\G: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\J: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\N: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\R: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\W: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\Z: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\V: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\B: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\H: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\M: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\X: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\I: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\M: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\O: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\P: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\Y: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\K: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\S: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\U: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\Y: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\A: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\L: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\A: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\B: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\N: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\K: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\T: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\Z: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\E: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\G: C:\Windows\system32\msiexec.exe N/A
File opened (read-only) \??\E: C:\Windows\system32\msiexec.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\SystemTemp\~DF91749D374A04B235.TMP C:\Windows\system32\msiexec.exe N/A
File created C:\Windows\Installer\e57fc03.msi C:\Windows\system32\msiexec.exe N/A
File opened for modification C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.log C:\Windows\system32\msiexec.exe N/A
File opened for modification C:\Windows\Installer\MSIBA.tmp C:\Windows\system32\msiexec.exe N/A
File opened for modification C:\Windows\Installer\ C:\Windows\system32\msiexec.exe N/A
File created C:\Windows\Installer\SourceHash{9E1680FF-4C43-4747-8CB7-63B423248401} C:\Windows\system32\msiexec.exe N/A
File created C:\Windows\SystemTemp\~DF802FB735CED20B67.TMP C:\Windows\system32\msiexec.exe N/A
File created C:\Windows\SystemTemp\~DF66B48AAD6A0C47AF.TMP C:\Windows\system32\msiexec.exe N/A
File created C:\Windows\SystemTemp\~DF18B3052CBCD5977F.TMP C:\Windows\system32\msiexec.exe N/A
File opened for modification C:\Windows\Installer\MSIFCA0.tmp C:\Windows\system32\msiexec.exe N/A
File opened for modification C:\Windows\Installer\MSIFD8C.tmp C:\Windows\system32\msiexec.exe N/A
File created C:\Windows\Installer\inprogressinstallinfo.ipi C:\Windows\system32\msiexec.exe N/A
File opened for modification C:\Windows\Installer\e57fc03.msi C:\Windows\system32\msiexec.exe N/A
File opened for modification C:\Windows\Installer\MSIFD7B.tmp C:\Windows\system32\msiexec.exe N/A
File created C:\Windows\Installer\e57fc05.msi C:\Windows\system32\msiexec.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\syswow64\MsiExec.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\syswow64\MsiExec.exe N/A

Checks SCSI registry key(s)

Description Indicator Process Target
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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 C:\Windows\system32\vssvc.exe N/A
Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr\SnapshotDataCache = 534e41505041525401000000700000008ec7416a0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\system32\vssvc.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters C:\Windows\system32\vssvc.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters C:\Windows\system32\vssvc.exe N/A
Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr C:\Windows\system32\vssvc.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\system32\msiexec.exe N/A
N/A N/A C:\Windows\system32\msiexec.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeCreateTokenPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeAssignPrimaryTokenPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeLockMemoryPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeMachineAccountPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeTcbPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeCreatePermanentPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeAuditPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeSyncAgentPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeEnableDelegationPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeImpersonatePrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeCreateTokenPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeAssignPrimaryTokenPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeLockMemoryPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeMachineAccountPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeTcbPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeCreatePermanentPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeAuditPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeSyncAgentPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeEnableDelegationPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeImpersonatePrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeCreateTokenPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeAssignPrimaryTokenPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeLockMemoryPrivilege N/A C:\Windows\system32\msiexec.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\system32\msiexec.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5024 wrote to memory of 4988 N/A C:\Windows\system32\msiexec.exe C:\Windows\syswow64\MsiExec.exe
PID 5024 wrote to memory of 4988 N/A C:\Windows\system32\msiexec.exe C:\Windows\syswow64\MsiExec.exe
PID 5024 wrote to memory of 4988 N/A C:\Windows\system32\msiexec.exe C:\Windows\syswow64\MsiExec.exe
PID 5024 wrote to memory of 3744 N/A C:\Windows\system32\msiexec.exe C:\Windows\system32\srtasks.exe
PID 5024 wrote to memory of 3744 N/A C:\Windows\system32\msiexec.exe C:\Windows\system32\srtasks.exe
PID 5024 wrote to memory of 3544 N/A C:\Windows\system32\msiexec.exe C:\Windows\syswow64\MsiExec.exe
PID 5024 wrote to memory of 3544 N/A C:\Windows\system32\msiexec.exe C:\Windows\syswow64\MsiExec.exe
PID 5024 wrote to memory of 3544 N/A C:\Windows\system32\msiexec.exe C:\Windows\syswow64\MsiExec.exe

Uses Volume Shadow Copy service COM API

ransomware

Processes

C:\Windows\system32\msiexec.exe

msiexec.exe /I "C:\Users\Admin\AppData\Local\Temp\NexusFN Installer.msi"

C:\Windows\system32\msiexec.exe

C:\Windows\system32\msiexec.exe /V

C:\Windows\syswow64\MsiExec.exe

C:\Windows\syswow64\MsiExec.exe -Embedding C3A05C8188ED527C8369309853E8B067 C

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssvc.exe

C:\Windows\system32\srtasks.exe

C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2

C:\Windows\syswow64\MsiExec.exe

C:\Windows\syswow64\MsiExec.exe -Embedding E71B830D028B0B46993E3CCFF3C33217

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\MSIB8A1.tmp

MD5 13056f6fc48a93c1268d690e554f4571
SHA1 b83de3638e8551a315bb51703762a9820a7e0688
SHA256 aeda49baf2d79da2f7a9266f1fb7884111c2620e187090321f5278af5131c996
SHA512 ca828b4248e399178a8614f941332d159a30bad0156df0d5f4c4ca9d74d0ccb61fac59f34c945f5f914e22ec639bd97718f76d21b452825b07fe4041d1a44824

C:\Config.Msi\e57fc04.rbs

MD5 f3a5cd8f973dbb7178968177a0b1d258
SHA1 aa6908cae0767c725fd1b9bd05031bce7e67f644
SHA256 7c50ad35fc022d600b074ebec5d74a6330e9c2fc6036790a914d80c838b2a74a
SHA512 34e2f5a40c5f7c2a5e05df137f59dd8ec3d566afef72198996d4b7e7889874630c651d78df58efe8ca268a94bf966c8febc7afac9563063e57a33ff9515fb6b4

\??\Volume{f83dfe0f-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{429e9764-b627-4a65-b388-262107925287}_OnDiskSnapshotProp

MD5 df4dd1aa5d4418d1f7cba24c6c9a8f9f
SHA1 bde9a68766be33028681ebf3a1818e7b663174fb
SHA256 6cb43c2193a565da59bd07ddbe8307387e471f96cc2a1852a75281a05a34d53e
SHA512 97d2dda6eeb26287b316f6d54ba4eb7fc65f3da31c806833c9410afc341f7522f172956281424fa828961349ab608ded5120208923946e3a4da41e829420146c

\??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2

MD5 a2f7be335b99a874dab06f836706e355
SHA1 9380c51e6e1fff96cbb5b5600277580b855581f6
SHA256 6d6ebcdb954ca9dc3e0fca9f7b02858dd823a029bffa0c964cfa213d46de1ec5
SHA512 635bed2780e9002380398d2f2dbf81e0f4380da4dda268fcd1b8311c9cda41a2bd18316c425f472acfcf7f150a168f597720dc4c3c5cc4b70c4723eac83fadc3