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Analysis
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max time kernel
101s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
19/04/2023, 05:01
Static task
static1
Behavioral task
behavioral1
Sample
BH0ePQy3XJSkIWO.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
BH0ePQy3XJSkIWO.exe
Resource
win10v2004-20230220-en
General
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Target
BH0ePQy3XJSkIWO.exe
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Size
676KB
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MD5
7c1367abb438f60292f78519fa2b851b
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SHA1
75c47cb21be625391991f41d4e55341e68a69410
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SHA256
f46e300e4db069550efc75aa67fb2929de58b2c4b543a7f9341b78f951ab9bd8
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SHA512
e8e129160f5e97beef5bbfbaf0cdfc0048d4b9d27991989dbb5e633b3a290f18e26957e9ea7a30f1c1b86d2313d233d7586c0480494294a3aad5780ce8d8a12d
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SSDEEP
12288:nRBO5ZZC/W2n9xsMHyyE566gQJtJNCXD3jnrleiDs+zjBVs/0zG:nRqTC/fDtS1rJtTCTIig+zjz6
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.amwi.net - Port:
587 - Username:
[email protected] - Password:
7_2se8Gr - 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-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 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 40 api.ipify.org 41 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2420 set thread context of 4476 2420 BH0ePQy3XJSkIWO.exe 92 -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4476 MSBuild.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2420 wrote to memory of 4476 2420 BH0ePQy3XJSkIWO.exe 92 PID 2420 wrote to memory of 4476 2420 BH0ePQy3XJSkIWO.exe 92 PID 2420 wrote to memory of 4476 2420 BH0ePQy3XJSkIWO.exe 92 PID 2420 wrote to memory of 4476 2420 BH0ePQy3XJSkIWO.exe 92 PID 2420 wrote to memory of 4476 2420 BH0ePQy3XJSkIWO.exe 92 PID 2420 wrote to memory of 4476 2420 BH0ePQy3XJSkIWO.exe 92 PID 2420 wrote to memory of 4476 2420 BH0ePQy3XJSkIWO.exe 92 PID 2420 wrote to memory of 4476 2420 BH0ePQy3XJSkIWO.exe 92 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\BH0ePQy3XJSkIWO.exe"C:\Users\Admin\AppData\Local\Temp\BH0ePQy3XJSkIWO.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2420 -
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
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4476
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