Analysis
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max time kernel
115s -
max time network
88s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
28/10/2022, 02:15
Static task
static1
Behavioral task
behavioral1
Sample
SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe
Resource
win10v2004-20220812-en
General
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Target
SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe
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Size
9KB
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MD5
76f7f07fceba81dd528ef9b10ecabfa0
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SHA1
6e5fea4625a773557cfc8cabd2df3bbeae41873b
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SHA256
61881ceb156b1061749e30c9e396bf12e94abedaebfe0acc723666c3f58e5ada
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SHA512
cec45f3293402615d22f7b0466783fd6ac99bfc55a9036439f225dc3450b943342c21e51dc6d91cb39fe076c4f0aeb9d48deebccfc0a0c566b65f7340ef23bd1
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SSDEEP
192:mMLh7fWeLMRXgwdMrIC8stYcFmVc03KY:ZLgeLMRXgwdMsCptYcFmVc03K
Malware Config
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\Tckwgjvg = "\"C:\\Users\\Admin\\AppData\\Roaming\\Hltrxw\\Tckwgjvg.exe\"" SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 6 api.ipify.org 7 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1492 set thread context of 1900 1492 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 29 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 576 powershell.exe 1900 MSBuild.exe 1900 MSBuild.exe 1900 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1492 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe Token: SeDebugPrivilege 576 powershell.exe Token: SeDebugPrivilege 1900 MSBuild.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 1492 wrote to memory of 576 1492 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 27 PID 1492 wrote to memory of 576 1492 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 27 PID 1492 wrote to memory of 576 1492 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 27 PID 1492 wrote to memory of 576 1492 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 27 PID 1492 wrote to memory of 1900 1492 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 29 PID 1492 wrote to memory of 1900 1492 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 29 PID 1492 wrote to memory of 1900 1492 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 29 PID 1492 wrote to memory of 1900 1492 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 29 PID 1492 wrote to memory of 1900 1492 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 29 PID 1492 wrote to memory of 1900 1492 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 29 PID 1492 wrote to memory of 1900 1492 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 29 PID 1492 wrote to memory of 1900 1492 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 29 PID 1492 wrote to memory of 1900 1492 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 29 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1492 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANQA2AA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:576
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1900
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