Analysis
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max time kernel
93s -
max time network
204s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
03-10-2024 14:47
Static task
static1
Behavioral task
behavioral1
Sample
Facturas comerciales 022024.exe
Resource
win7-20240903-en
General
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Target
Facturas comerciales 022024.exe
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Size
77.0MB
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MD5
f960fc5cc22d1f5814e1c81face5f7ec
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SHA1
6199e3fd09f57ac433b789a451150e7fc4127237
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SHA256
4088301bd65eae0fee42f3f12206b95c08b2e8763d91209a320b6d1d573a531d
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SHA512
83f5f95924ce3afe5add36ecc389ee75c4a1c89c8686d80dede34faafc6c69fa722b3e5e003762b554cbe50a0e88d3870386671ff0a52e905f2dd9ae410e5fe3
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SSDEEP
24576:ffmMv6Ckr7Mny5QLEq3+q5dK619jWU48CR:f3v+7/5QLEq3+UK+Q
Malware Config
Extracted
Protocol: smtp- Host:
mail.flujoauditorias.cl - Port:
587 - Username:
[email protected] - Password:
l;0jGu7J;z_a
Extracted
agenttesla
Protocol: smtp- Host:
mail.flujoauditorias.cl - Port:
587 - Username:
[email protected] - Password:
l;0jGu7J;z_a - 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 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 16 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2312 set thread context of 1740 2312 Facturas comerciales 022024.exe 82 -
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 Facturas comerciales 022024.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegSvcs.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1740 RegSvcs.exe 1740 RegSvcs.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2312 Facturas comerciales 022024.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1740 RegSvcs.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2312 wrote to memory of 1740 2312 Facturas comerciales 022024.exe 82 PID 2312 wrote to memory of 1740 2312 Facturas comerciales 022024.exe 82 PID 2312 wrote to memory of 1740 2312 Facturas comerciales 022024.exe 82 PID 2312 wrote to memory of 1740 2312 Facturas comerciales 022024.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\Facturas comerciales 022024.exe"C:\Users\Admin\AppData\Local\Temp\Facturas comerciales 022024.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2312 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Users\Admin\AppData\Local\Temp\Facturas comerciales 022024.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1740
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