Analysis
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max time kernel
103s -
max time network
104s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
15-05-2024 08:22
Static task
static1
Behavioral task
behavioral1
Sample
vsl_information_7927_pdf.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
vsl_information_7927_pdf.exe
Resource
win10v2004-20240508-en
General
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Target
vsl_information_7927_pdf.exe
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Size
1.0MB
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MD5
67950946282eae4057d8175b41604764
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SHA1
34abefea5eed13529b243e06f87d14977081b295
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SHA256
fb4919294389e873ecbf846b77f281854cc9e15cebb095fc4c54cd7c55c0ee9e
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SHA512
65b7e6eaed0c5582b741293661447e35ec84c14170f9512de24987e03f26cbfb295d882c13c7ff4eea7af3cd0fb7f1cf003f7d8b5f255e0ed68b571996e104b5
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SSDEEP
24576:OAHnh+eWsN3skA4RV1Hom2KXMmHaoZUakf8wh5:5h+ZkldoPK8Yao+aIn
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.window10server.com - Port:
587 - Username:
[email protected] - Password:
6oJwe0Mg7pNWEVD - 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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Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 1 api.ipify.org 2 api.ipify.org 3 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2036 set thread context of 4456 2036 vsl_information_7927_pdf.exe 81 -
Program crash 1 IoCs
pid pid_target Process procid_target 652 2036 WerFault.exe 80 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4456 RegSvcs.exe 4456 RegSvcs.exe -
Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 2036 vsl_information_7927_pdf.exe 2036 vsl_information_7927_pdf.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4456 RegSvcs.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 2036 vsl_information_7927_pdf.exe 2036 vsl_information_7927_pdf.exe -
Suspicious use of SendNotifyMessage 2 IoCs
pid Process 2036 vsl_information_7927_pdf.exe 2036 vsl_information_7927_pdf.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4456 RegSvcs.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2036 wrote to memory of 4456 2036 vsl_information_7927_pdf.exe 81 PID 2036 wrote to memory of 4456 2036 vsl_information_7927_pdf.exe 81 PID 2036 wrote to memory of 4456 2036 vsl_information_7927_pdf.exe 81 PID 2036 wrote to memory of 4456 2036 vsl_information_7927_pdf.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\vsl_information_7927_pdf.exe"C:\Users\Admin\AppData\Local\Temp\vsl_information_7927_pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2036 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Users\Admin\AppData\Local\Temp\vsl_information_7927_pdf.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4456
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2036 -s 6962⤵
- Program crash
PID:652
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 2036 -ip 20361⤵PID:1856