Analysis
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max time kernel
122s -
max time network
126s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
11/10/2023, 12:16
Static task
static1
Behavioral task
behavioral1
Sample
Request form.docs.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
Request form.docs.exe
Resource
win10v2004-20230915-en
General
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Target
Request form.docs.exe
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Size
745KB
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MD5
44cb7649374df879012160b24ca69a60
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SHA1
c637e480a3335a8ade7a28058798e6ddc764ca89
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SHA256
3033730f6b585fdcb6e1cf2a88e8debd2f73e2e5c7064ec0b13e471bcffe191c
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SHA512
30add6247c2c9b4d0564f7433a65541e6d8e4c5d933bf655ab3ac1ed4cf6047cbff18cfc6c60b2d4b7c7f1810802e93a851212cdf1d694e2f897de0ae1536f6d
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SSDEEP
12288:os1XVFrB0mdEATN6P5zK3vBdljH8aEQalJacLyJQE8cWwz3ZsqJ/:oAuOTNmcvpjcLQyJvGGErsqJ/
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.frontierfulfillment.com.my - Port:
587 - Username:
[email protected] - Password:
5_8B6kjVm - 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-1-5-21-2180306848-1874213455-4093218721-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000\Software\Microsoft\Windows\CurrentVersion\Run\FndrE = "C:\\Users\\Admin\\AppData\\Roaming\\FndrE\\FndrE.exe" RegSvcs.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 4 api.ipify.org 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1716 set thread context of 2100 1716 Request form.docs.exe 30 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2708 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2100 RegSvcs.exe 2100 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2100 RegSvcs.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 1716 wrote to memory of 2708 1716 Request form.docs.exe 28 PID 1716 wrote to memory of 2708 1716 Request form.docs.exe 28 PID 1716 wrote to memory of 2708 1716 Request form.docs.exe 28 PID 1716 wrote to memory of 2708 1716 Request form.docs.exe 28 PID 1716 wrote to memory of 2100 1716 Request form.docs.exe 30 PID 1716 wrote to memory of 2100 1716 Request form.docs.exe 30 PID 1716 wrote to memory of 2100 1716 Request form.docs.exe 30 PID 1716 wrote to memory of 2100 1716 Request form.docs.exe 30 PID 1716 wrote to memory of 2100 1716 Request form.docs.exe 30 PID 1716 wrote to memory of 2100 1716 Request form.docs.exe 30 PID 1716 wrote to memory of 2100 1716 Request form.docs.exe 30 PID 1716 wrote to memory of 2100 1716 Request form.docs.exe 30 PID 1716 wrote to memory of 2100 1716 Request form.docs.exe 30 PID 1716 wrote to memory of 2100 1716 Request form.docs.exe 30 PID 1716 wrote to memory of 2100 1716 Request form.docs.exe 30 PID 1716 wrote to memory of 2100 1716 Request form.docs.exe 30 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2180306848-1874213455-4093218721-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Request form.docs.exe"C:\Users\Admin\AppData\Local\Temp\Request form.docs.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1716 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GbwTqrPiggrQo" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC236.tmp"2⤵
- Creates scheduled task(s)
PID:2708
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2100
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD5fe520b1f3b496985aa3fa757534decbe
SHA1ce6d8915237ad1fb0ba2a3dc1b5519cdf1269c98
SHA25678a3fa613c5cdce22b500d2ffdf65a70ec1e8bcd951e50d26a99145835cc2d21
SHA5129dcbdbae47414293ef284be6eb72647ed1f000ac6a72eeef58ae13903150a1601dcf35a670763df8ef847e03fbebb7af6a3ac3f88a9ea161642c4404df76312a