Analysis
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max time kernel
73s -
max time network
131s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
28/03/2025, 13:20
Static task
static1
Behavioral task
behavioral1
Sample
b5Tu0LaQfn6bnAD.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
b5Tu0LaQfn6bnAD.exe
Resource
win10v2004-20250314-en
General
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Target
b5Tu0LaQfn6bnAD.exe
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Size
790KB
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MD5
5220a44989c88e4d1a573ecaea24056a
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SHA1
b5ae001ca25a3ee449d2103fdca87b81d3c67f88
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SHA256
ab68d4e831745aa5364ad14203a0a9669a5362913b09263eb4e06681f62007c5
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SHA512
f174ff257e076474cbb270bf4933d9fbe93fb75e862fad98bffb12c576ff11a9860df7ecc702f910a288d23d96b9e0f0a3e1e8992b07979cd50b284f96d16f55
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SSDEEP
24576:YP9fy9U2kn2Uv6XQbzET5RrNfxi3SLX26s2ZAXtJb:Ylfy9U527XQbgVFyA6t
Malware Config
Extracted
vipkeylogger
Protocol: smtp- Host:
mail.steadfastlogistics.in - Port:
587 - Username:
[email protected] - Password:
slf@2023 - 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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Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 2204 powershell.exe 2992 powershell.exe -
Uses the VBS compiler for execution 1 TTPs
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.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 4 checkip.dyndns.org 8 reallyfreegeoip.org 9 reallyfreegeoip.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2616 set thread context of 2976 2616 b5Tu0LaQfn6bnAD.exe 35 -
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 5 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 schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language vbc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b5Tu0LaQfn6bnAD.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2896 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2616 b5Tu0LaQfn6bnAD.exe 2616 b5Tu0LaQfn6bnAD.exe 2976 vbc.exe 2204 powershell.exe 2992 powershell.exe 2976 vbc.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2616 b5Tu0LaQfn6bnAD.exe Token: SeDebugPrivilege 2976 vbc.exe Token: SeDebugPrivilege 2992 powershell.exe Token: SeDebugPrivilege 2204 powershell.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 2616 wrote to memory of 2204 2616 b5Tu0LaQfn6bnAD.exe 29 PID 2616 wrote to memory of 2204 2616 b5Tu0LaQfn6bnAD.exe 29 PID 2616 wrote to memory of 2204 2616 b5Tu0LaQfn6bnAD.exe 29 PID 2616 wrote to memory of 2204 2616 b5Tu0LaQfn6bnAD.exe 29 PID 2616 wrote to memory of 2992 2616 b5Tu0LaQfn6bnAD.exe 31 PID 2616 wrote to memory of 2992 2616 b5Tu0LaQfn6bnAD.exe 31 PID 2616 wrote to memory of 2992 2616 b5Tu0LaQfn6bnAD.exe 31 PID 2616 wrote to memory of 2992 2616 b5Tu0LaQfn6bnAD.exe 31 PID 2616 wrote to memory of 2896 2616 b5Tu0LaQfn6bnAD.exe 33 PID 2616 wrote to memory of 2896 2616 b5Tu0LaQfn6bnAD.exe 33 PID 2616 wrote to memory of 2896 2616 b5Tu0LaQfn6bnAD.exe 33 PID 2616 wrote to memory of 2896 2616 b5Tu0LaQfn6bnAD.exe 33 PID 2616 wrote to memory of 2976 2616 b5Tu0LaQfn6bnAD.exe 35 PID 2616 wrote to memory of 2976 2616 b5Tu0LaQfn6bnAD.exe 35 PID 2616 wrote to memory of 2976 2616 b5Tu0LaQfn6bnAD.exe 35 PID 2616 wrote to memory of 2976 2616 b5Tu0LaQfn6bnAD.exe 35 PID 2616 wrote to memory of 2976 2616 b5Tu0LaQfn6bnAD.exe 35 PID 2616 wrote to memory of 2976 2616 b5Tu0LaQfn6bnAD.exe 35 PID 2616 wrote to memory of 2976 2616 b5Tu0LaQfn6bnAD.exe 35 PID 2616 wrote to memory of 2976 2616 b5Tu0LaQfn6bnAD.exe 35 PID 2616 wrote to memory of 2976 2616 b5Tu0LaQfn6bnAD.exe 35 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b5Tu0LaQfn6bnAD.exe"C:\Users\Admin\AppData\Local\Temp\b5Tu0LaQfn6bnAD.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2616 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\b5Tu0LaQfn6bnAD.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2204
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\IFZCSslt.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2992
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IFZCSslt" /XML "C:\Users\Admin\AppData\Local\Temp\tmp535E.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2896
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.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:2976
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD557e219557c07930c4f48784c6c97cb91
SHA162f805686cc9fb9e96cbfa32b5742b3c826b3ac9
SHA25651afedc7ed0f6ee31f5149edda28d068880cbf311662ace4cc11934edf714fbd
SHA5129baa2c185d54e9fda0d43f032dfbdb970e86ed22f1c0f88a7f27ad6fb6c43c7dda4d5c3378b0296fef7d71fc0279d22bb2ded797ed9a76d3f2b5b87598ea5c4d
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
Filesize7KB
MD53d299ab25805e7de2c1d23c96a329c70
SHA17571476581a09ad4e467cbda6c094f590ee68e68
SHA256c4cfbdd013a1537df2b40e9b61b04255b5bbcf328aeb60a5070d27085cace535
SHA5127a6cd6746ad596e7506bd0080cd351569a41793ba3b25b8fc92efef7141187164df7bcb0b3b50c69d10285b0cc6394a49850bbbd41aa1ec00ceb9ac6f0442aee