Analysis
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max time kernel
147s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
05/10/2023, 09:31
Static task
static1
Behavioral task
behavioral1
Sample
IMG_026_7990xlsx.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
IMG_026_7990xlsx.exe
Resource
win10v2004-20230915-en
General
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Target
IMG_026_7990xlsx.exe
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Size
804KB
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MD5
75581f0ab61769efc27e279c0cf1ebe7
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SHA1
3d9c9d281df3cf8666828bdfa87a82297b8cf475
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SHA256
5658649d60ad2eb973e1c657001af54d8c1c927d0abada7a13b743a3c90ee6d9
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SHA512
b996ffe5134d4e474077f91233e45cd59caa2c7a3ffc70c170258bf114d9f4f90b0bfaa6e4aca6ed4e3641118053c3469bdcb911a2e04d6a8edda0d2a5965f22
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SSDEEP
12288:cOZwvkZUoqDK5vFY6bZ0bE2Pm29Ldm4R0DXzIyMif/XttiYe/HR:EkZUoczbTRNKXIyMI/Xnhe/HR
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
server1.sqsendy.shop - Port:
587 - Username:
[email protected] - Password:
v5[;Ul!$7#5o - 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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\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-1-5-21-1045988481-1457812719-2617974652-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poobqy = "C:\\Users\\Admin\\AppData\\Roaming\\poobqy.exe" IMG_026_7990xlsx.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 36 api.ipify.org 35 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2836 set thread context of 3724 2836 IMG_026_7990xlsx.exe 86 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3724 MSBuild.exe 3724 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2836 IMG_026_7990xlsx.exe Token: SeDebugPrivilege 3724 MSBuild.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2836 wrote to memory of 3724 2836 IMG_026_7990xlsx.exe 86 PID 2836 wrote to memory of 3724 2836 IMG_026_7990xlsx.exe 86 PID 2836 wrote to memory of 3724 2836 IMG_026_7990xlsx.exe 86 PID 2836 wrote to memory of 3724 2836 IMG_026_7990xlsx.exe 86 PID 2836 wrote to memory of 3724 2836 IMG_026_7990xlsx.exe 86 PID 2836 wrote to memory of 3724 2836 IMG_026_7990xlsx.exe 86 PID 2836 wrote to memory of 3724 2836 IMG_026_7990xlsx.exe 86 PID 2836 wrote to memory of 3724 2836 IMG_026_7990xlsx.exe 86 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\IMG_026_7990xlsx.exe"C:\Users\Admin\AppData\Local\Temp\IMG_026_7990xlsx.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2836 -
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:3724
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