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Analysis
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max time kernel
91s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-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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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\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 33 api.ipify.org 34 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4664 set thread context of 3344 4664 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 92 -
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 7 IoCs
pid Process 2848 powershell.exe 2848 powershell.exe 4664 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 4664 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 3344 MSBuild.exe 3344 MSBuild.exe 3344 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4664 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe Token: SeDebugPrivilege 2848 powershell.exe Token: SeDebugPrivilege 3344 MSBuild.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4664 wrote to memory of 2848 4664 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 84 PID 4664 wrote to memory of 2848 4664 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 84 PID 4664 wrote to memory of 2848 4664 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 84 PID 4664 wrote to memory of 2392 4664 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 91 PID 4664 wrote to memory of 2392 4664 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 91 PID 4664 wrote to memory of 2392 4664 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 91 PID 4664 wrote to memory of 3344 4664 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 92 PID 4664 wrote to memory of 3344 4664 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 92 PID 4664 wrote to memory of 3344 4664 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 92 PID 4664 wrote to memory of 3344 4664 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 92 PID 4664 wrote to memory of 3344 4664 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 92 PID 4664 wrote to memory of 3344 4664 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 92 PID 4664 wrote to memory of 3344 4664 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 92 PID 4664 wrote to memory of 3344 4664 SecuriteInfo.com.W32.MSIL_Downldr.I.gen.Eldorado.21497.7603.exe 92 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\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⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4664 -
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:2848
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe2⤵PID:2392
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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:3344
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