Analysis
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max time kernel
135s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-es -
resource tags
arch:x64arch:x86image:win10v2004-20240226-eslocale:es-esos:windows10-2004-x64systemwindows -
submitted
27/03/2024, 18:57
Static task
static1
Behavioral task
behavioral1
Sample
Visualizar-PDF.38105.msi
Resource
win7-20240221-es
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
Visualizar-PDF.38105.msi
Resource
win10v2004-20240226-es
windows10-2004-x64
11 signatures
150 seconds
General
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Target
Visualizar-PDF.38105.msi
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Size
732KB
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MD5
bf440e49375e237d109f66a7cee79fc1
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SHA1
32ee9706c1d532867af3ded30dfd67aea596028c
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SHA256
4e085dd4d721815f4757f125761fddbf42d7d672380eb6627efd138c21146e42
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SHA512
88d503d2dc8cd9970eeb489e89b772c8a56abe831c6aebae1b39824e22b913bc61ec42c3715b60ee3ec51afdeb809ba039fc5a59a85343c328d9d9f06b50baaf
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SSDEEP
12288:UvXCtQ6QsN5lNOsw6vAUnBU7qax0EzIVYgvfVYsAgkWZT:UmQxsNcswvEU7J8VlvfVYsAgvZT
Score
7/10
Malware Config
Signatures
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Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MLWALTTDOB.lnk MsiExec.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MLWALTTDOB = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\Startup\\MLWALTTDOB.lnk" MsiExec.exe -
Blocklisted process makes network request 1 IoCs
flow pid Process 15 3404 MsiExec.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) \??\I: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\V: msiexec.exe -
Drops file in Windows directory 12 IoCs
description ioc Process File created C:\Windows\Installer\e575eba.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\MSI60CF.tmp msiexec.exe File opened for modification C:\Windows\Installer\ msiexec.exe File created C:\Windows\Installer\e575ebe.msi msiexec.exe File opened for modification C:\Windows\Installer\e575eba.msi msiexec.exe File opened for modification C:\Windows\Installer\MSI5F08.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSI6061.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSI612E.tmp msiexec.exe File created C:\Windows\Installer\inprogressinstallinfo.ipi msiexec.exe File created C:\Windows\Installer\SourceHash{CAF34CE6-3C74-4E8A-80F9-3F2B5341CA43} msiexec.exe File opened for modification C:\Windows\Installer\MSI61CB.tmp msiexec.exe -
Loads dropped DLL 4 IoCs
pid Process 3404 MsiExec.exe 3404 MsiExec.exe 3404 MsiExec.exe 3404 MsiExec.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4492 msiexec.exe 4492 msiexec.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeShutdownPrivilege 4660 msiexec.exe Token: SeIncreaseQuotaPrivilege 4660 msiexec.exe Token: SeSecurityPrivilege 4492 msiexec.exe Token: SeCreateTokenPrivilege 4660 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 4660 msiexec.exe Token: SeLockMemoryPrivilege 4660 msiexec.exe Token: SeIncreaseQuotaPrivilege 4660 msiexec.exe Token: SeMachineAccountPrivilege 4660 msiexec.exe Token: SeTcbPrivilege 4660 msiexec.exe Token: SeSecurityPrivilege 4660 msiexec.exe Token: SeTakeOwnershipPrivilege 4660 msiexec.exe Token: SeLoadDriverPrivilege 4660 msiexec.exe Token: SeSystemProfilePrivilege 4660 msiexec.exe Token: SeSystemtimePrivilege 4660 msiexec.exe Token: SeProfSingleProcessPrivilege 4660 msiexec.exe Token: SeIncBasePriorityPrivilege 4660 msiexec.exe Token: SeCreatePagefilePrivilege 4660 msiexec.exe Token: SeCreatePermanentPrivilege 4660 msiexec.exe Token: SeBackupPrivilege 4660 msiexec.exe Token: SeRestorePrivilege 4660 msiexec.exe Token: SeShutdownPrivilege 4660 msiexec.exe Token: SeDebugPrivilege 4660 msiexec.exe Token: SeAuditPrivilege 4660 msiexec.exe Token: SeSystemEnvironmentPrivilege 4660 msiexec.exe Token: SeChangeNotifyPrivilege 4660 msiexec.exe Token: SeRemoteShutdownPrivilege 4660 msiexec.exe Token: SeUndockPrivilege 4660 msiexec.exe Token: SeSyncAgentPrivilege 4660 msiexec.exe Token: SeEnableDelegationPrivilege 4660 msiexec.exe Token: SeManageVolumePrivilege 4660 msiexec.exe Token: SeImpersonatePrivilege 4660 msiexec.exe Token: SeCreateGlobalPrivilege 4660 msiexec.exe Token: SeRestorePrivilege 4492 msiexec.exe Token: SeTakeOwnershipPrivilege 4492 msiexec.exe Token: SeRestorePrivilege 4492 msiexec.exe Token: SeTakeOwnershipPrivilege 4492 msiexec.exe Token: SeRestorePrivilege 4492 msiexec.exe Token: SeTakeOwnershipPrivilege 4492 msiexec.exe Token: SeRestorePrivilege 4492 msiexec.exe Token: SeTakeOwnershipPrivilege 4492 msiexec.exe Token: SeRestorePrivilege 4492 msiexec.exe Token: SeTakeOwnershipPrivilege 4492 msiexec.exe Token: SeRestorePrivilege 4492 msiexec.exe Token: SeTakeOwnershipPrivilege 4492 msiexec.exe Token: SeRestorePrivilege 4492 msiexec.exe Token: SeTakeOwnershipPrivilege 4492 msiexec.exe Token: SeRestorePrivilege 4492 msiexec.exe Token: SeTakeOwnershipPrivilege 4492 msiexec.exe Token: SeRestorePrivilege 4492 msiexec.exe Token: SeTakeOwnershipPrivilege 4492 msiexec.exe Token: SeRestorePrivilege 4492 msiexec.exe Token: SeTakeOwnershipPrivilege 4492 msiexec.exe Token: SeRestorePrivilege 4492 msiexec.exe Token: SeTakeOwnershipPrivilege 4492 msiexec.exe Token: SeRestorePrivilege 4492 msiexec.exe Token: SeTakeOwnershipPrivilege 4492 msiexec.exe Token: SeRestorePrivilege 4492 msiexec.exe Token: SeTakeOwnershipPrivilege 4492 msiexec.exe Token: SeRestorePrivilege 4492 msiexec.exe Token: SeTakeOwnershipPrivilege 4492 msiexec.exe Token: SeRestorePrivilege 4492 msiexec.exe Token: SeTakeOwnershipPrivilege 4492 msiexec.exe Token: SeRestorePrivilege 4492 msiexec.exe Token: SeTakeOwnershipPrivilege 4492 msiexec.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
pid Process 4660 msiexec.exe 3404 MsiExec.exe 4660 msiexec.exe -
Suspicious use of SendNotifyMessage 1 IoCs
pid Process 3404 MsiExec.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4492 wrote to memory of 3404 4492 msiexec.exe 88 PID 4492 wrote to memory of 3404 4492 msiexec.exe 88 PID 4492 wrote to memory of 3404 4492 msiexec.exe 88
Processes
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C:\Windows\system32\msiexec.exemsiexec.exe /I C:\Users\Admin\AppData\Local\Temp\Visualizar-PDF.38105.msi1⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:4660
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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:4492 -
C:\Windows\syswow64\MsiExec.exeC:\Windows\syswow64\MsiExec.exe -Embedding C0EB06F9EAD5B633CE2ECBC18C0B3CF72⤵
- Drops startup file
- Adds Run key to start application
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:3404
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
9KB
MD593f74b110b761cfff4249193673ebbea
SHA17173337365e8c1139f380ed9b77b1ea914d707ab
SHA25678061c914efd71cce30e4fda3bfffa71300709ab40d0285ff5c5a3074580ddd4
SHA5126bb89e2f148c385a4934016d5f5018b7b40e5f5fae7309c57b5dc1a9f149d6f03d26a6a69f4e8df16f76cbc446702eb8afb6c2222059552b15082a9df0d557ed
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Filesize
393KB
MD53d24a2af1fb93f9960a17d6394484802
SHA1ee74a6ceea0853c47e12802961a7a8869f7f0d69
SHA2568d23754e6b8bb933d79861540b50deca42e33ac4c3a6669c99fb368913b66d88
SHA512f6a19d00896a63debb9ee7cdd71a92c0a3089b6f4c44976b9c30d97fcbaacd74a8d56150be518314fac74dd3ebea2001dc3859b0f3e4e467a01721b29f6227ba