Analysis
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max time kernel
148s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20250129-en -
resource tags
arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system -
submitted
30-01-2025 03:18
Static task
static1
Behavioral task
behavioral1
Sample
Receipt Copy001pdf.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
Receipt Copy001pdf.exe
Resource
win10v2004-20250129-en
General
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Target
Receipt Copy001pdf.exe
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Size
993KB
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MD5
5b15cda50a751110bb9c7f1fe8eb3b2f
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SHA1
62547ae272eb9be69ad5fd565782dc569b453ec7
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SHA256
aaee9ff9746646836f3538beea0c59fb1c83ee095023d09899238ae732bd190e
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SHA512
d1a1157df7a54ebde01903031224dfef6cbfc548ff853cec1edfe85d1abb5472e7128e1bc1c4c0fcd8f63fb2516655780f1bdbfa2721eada862f6e8dbbfe831f
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SSDEEP
24576:yAHnh+eWsN3skA4RV1Hom2KXFmIaMfRIHnJ1RvKr3m5:1h+ZkldoPK1XaMGHnJ1srs
Malware Config
Extracted
vipkeylogger
Protocol: smtp- Host:
mail.npmmachinery.com - Port:
587 - Username:
[email protected] - Password:
^@SC}ST5oCG- - Email To:
[email protected]
Signatures
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VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
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Vipkeylogger family
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4003209913-3868522715-854928974-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-4003209913-3868522715-854928974-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-4003209913-3868522715-854928974-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
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 13 checkip.dyndns.org 15 reallyfreegeoip.org 16 reallyfreegeoip.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4516 set thread context of 3644 4516 Receipt Copy001pdf.exe 84 -
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 RegSvcs.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Receipt Copy001pdf.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3644 RegSvcs.exe 3644 RegSvcs.exe -
Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 4516 Receipt Copy001pdf.exe 4516 Receipt Copy001pdf.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3644 RegSvcs.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4516 Receipt Copy001pdf.exe 4516 Receipt Copy001pdf.exe -
Suspicious use of SendNotifyMessage 2 IoCs
pid Process 4516 Receipt Copy001pdf.exe 4516 Receipt Copy001pdf.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4516 wrote to memory of 3644 4516 Receipt Copy001pdf.exe 84 PID 4516 wrote to memory of 3644 4516 Receipt Copy001pdf.exe 84 PID 4516 wrote to memory of 3644 4516 Receipt Copy001pdf.exe 84 PID 4516 wrote to memory of 3644 4516 Receipt Copy001pdf.exe 84 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4003209913-3868522715-854928974-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4003209913-3868522715-854928974-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Receipt Copy001pdf.exe"C:\Users\Admin\AppData\Local\Temp\Receipt Copy001pdf.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4516 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Users\Admin\AppData\Local\Temp\Receipt Copy001pdf.exe"2⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3644
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