Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
09-06-2023 08:17
Static task
static1
Behavioral task
behavioral1
Sample
804152064.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
804152064.exe
Resource
win10v2004-20230220-en
General
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Target
804152064.exe
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Size
723KB
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MD5
331bc06d67e4078e0779a9a0a5d355b5
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SHA1
475924a69dee5e4a4ab1a66c944068fa2111db68
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SHA256
ad641230d3be8895193642d333ed88e1d6e94c209dfcb6c1932cd6a7f324a82f
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SHA512
8e30912ab46b825292955ad70f816a8a12171692272af563181630a4ec0e24de2dbb240c8cfbf666e6233fc9c58858d88de53164dde82a804066c842501c8fee
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SSDEEP
12288:sk+J/M+Jhewx/NscEQ+vgXK1HsaPbntTjlFhush1nPTs8HlaxYvR1toDvll2Hvk/:sl/thewlqB6pGjlfusbrs8UYvREblivu
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.gmail.com - Port:
587 - Username:
[email protected] - Password:
iebtzpacgzyullvo - Email To:
[email protected]
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-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation 804152064.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\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-1-5-21-2275444769-3691835758-4097679484-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\aCcAwFD = "C:\\Users\\Admin\\AppData\\Roaming\\aCcAwFD\\aCcAwFD.exe" MSBuild.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 42 api.ipify.org 43 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4484 set thread context of 2268 4484 804152064.exe 96 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3768 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4484 804152064.exe 4484 804152064.exe 3568 powershell.exe 3568 powershell.exe 2268 MSBuild.exe 2268 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4484 804152064.exe Token: SeDebugPrivilege 2268 MSBuild.exe Token: SeDebugPrivilege 3568 powershell.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4484 wrote to memory of 3568 4484 804152064.exe 92 PID 4484 wrote to memory of 3568 4484 804152064.exe 92 PID 4484 wrote to memory of 3568 4484 804152064.exe 92 PID 4484 wrote to memory of 3768 4484 804152064.exe 94 PID 4484 wrote to memory of 3768 4484 804152064.exe 94 PID 4484 wrote to memory of 3768 4484 804152064.exe 94 PID 4484 wrote to memory of 2268 4484 804152064.exe 96 PID 4484 wrote to memory of 2268 4484 804152064.exe 96 PID 4484 wrote to memory of 2268 4484 804152064.exe 96 PID 4484 wrote to memory of 2268 4484 804152064.exe 96 PID 4484 wrote to memory of 2268 4484 804152064.exe 96 PID 4484 wrote to memory of 2268 4484 804152064.exe 96 PID 4484 wrote to memory of 2268 4484 804152064.exe 96 PID 4484 wrote to memory of 2268 4484 804152064.exe 96 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\804152064.exe"C:\Users\Admin\AppData\Local\Temp\804152064.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4484 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\yZRXCHBD.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3568
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yZRXCHBD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp223D.tmp"2⤵
- Creates scheduled task(s)
PID:3768
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2268
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5c9a0b295118f0a3af613520279c68d31
SHA1eb22e431585c298d9b0888015b662b75f5e3078e
SHA256e636ef31f0263e77219ca73f25ef539c659e74c632cace3fdf66d724718dee00
SHA5122a7bba474f31b085580f49c6ce9a90552387819676d6e8e002c60cbda2d0be0ae778308d75af8f0a0121dd288495a992202febae623ed3a14f4b72f447aa64bd