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Analysis
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max time kernel
105s -
max time network
108s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
09/10/2024, 06:37
Static task
static1
Behavioral task
behavioral1
Sample
Appt.Letter-SCM2403795.pdf.exe
Resource
win7-20240903-en
General
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Target
Appt.Letter-SCM2403795.pdf.exe
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Size
1.2MB
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MD5
0aa90b060df8489a4f57fae9a9e7d050
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SHA1
0e63264bbd96091f6fd5ad6fc3826a28a6979bb9
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SHA256
181d9736138c254a9fa190542fd53cfc314ba0ceb6d67323ab271a99fc080416
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SHA512
1eec467dfd4d1ab106ddc7fbee0517ad343abaeb583ae93cddaef5ba3bda43089bc902285d0eb5772e41be5ebf7539f62a2255a5dfbc9badeea7c586003e0942
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SSDEEP
24576:ffmMv6Ckr7Mny5QLFtQvgCT3p5kGzs4bIWtk/Ahe5usChkdI:f3v+7/5QLFkJLpyGwOkQhs6kdI
Malware Config
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 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 16 api.ipify.org 15 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3692 set thread context of 3644 3692 Appt.Letter-SCM2403795.pdf.exe 86 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Appt.Letter-SCM2403795.pdf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegSvcs.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3644 RegSvcs.exe 3644 RegSvcs.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3692 Appt.Letter-SCM2403795.pdf.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3644 RegSvcs.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3692 wrote to memory of 3644 3692 Appt.Letter-SCM2403795.pdf.exe 86 PID 3692 wrote to memory of 3644 3692 Appt.Letter-SCM2403795.pdf.exe 86 PID 3692 wrote to memory of 3644 3692 Appt.Letter-SCM2403795.pdf.exe 86 PID 3692 wrote to memory of 3644 3692 Appt.Letter-SCM2403795.pdf.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\Appt.Letter-SCM2403795.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Appt.Letter-SCM2403795.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3692 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Users\Admin\AppData\Local\Temp\Appt.Letter-SCM2403795.pdf.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3644
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