Analysis
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max time kernel
117s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20250207-en -
resource tags
arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system -
submitted
28/03/2025, 13:20
Static task
static1
Behavioral task
behavioral1
Sample
bEXN0tpyU41jdD0.exe
Resource
win7-20250207-en
Behavioral task
behavioral2
Sample
bEXN0tpyU41jdD0.exe
Resource
win10v2004-20250314-en
General
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Target
bEXN0tpyU41jdD0.exe
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Size
864KB
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MD5
25b7cb7a62555ef3aaa7ecae00c8decd
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SHA1
a2421f5e2ae3aa20b8d11fc3076cea2400c68299
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SHA256
867af082ab5f5e7468aab5bca97063c60877f44c2d39c0ad02f1a1e721c92260
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SHA512
c7c7eeed71df83807cf9d584ee913e4661ccd7d921139a381ce4c17479420683f5ece7aa37b618d4162f39bde11c3bb2bf44fe906e9794f7d3ae0faa6c119f1b
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SSDEEP
24576:pg5n6cf13/iyC9LDY9uAKwOy39S741VxsUYI2f:pgB6KRCxDitSiYIU
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 2440 powershell.exe 2932 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-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe Key opened \REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe Key opened \REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\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 9 reallyfreegeoip.org 4 checkip.dyndns.org 8 reallyfreegeoip.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1852 set thread context of 1412 1852 bEXN0tpyU41jdD0.exe 37 -
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 bEXN0tpyU41jdD0.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 2828 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1852 bEXN0tpyU41jdD0.exe 2932 powershell.exe 2440 powershell.exe 1852 bEXN0tpyU41jdD0.exe 1412 vbc.exe 1412 vbc.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1852 bEXN0tpyU41jdD0.exe Token: SeDebugPrivilege 2932 powershell.exe Token: SeDebugPrivilege 2440 powershell.exe Token: SeDebugPrivilege 1412 vbc.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 1852 wrote to memory of 2440 1852 bEXN0tpyU41jdD0.exe 31 PID 1852 wrote to memory of 2440 1852 bEXN0tpyU41jdD0.exe 31 PID 1852 wrote to memory of 2440 1852 bEXN0tpyU41jdD0.exe 31 PID 1852 wrote to memory of 2440 1852 bEXN0tpyU41jdD0.exe 31 PID 1852 wrote to memory of 2932 1852 bEXN0tpyU41jdD0.exe 33 PID 1852 wrote to memory of 2932 1852 bEXN0tpyU41jdD0.exe 33 PID 1852 wrote to memory of 2932 1852 bEXN0tpyU41jdD0.exe 33 PID 1852 wrote to memory of 2932 1852 bEXN0tpyU41jdD0.exe 33 PID 1852 wrote to memory of 2828 1852 bEXN0tpyU41jdD0.exe 35 PID 1852 wrote to memory of 2828 1852 bEXN0tpyU41jdD0.exe 35 PID 1852 wrote to memory of 2828 1852 bEXN0tpyU41jdD0.exe 35 PID 1852 wrote to memory of 2828 1852 bEXN0tpyU41jdD0.exe 35 PID 1852 wrote to memory of 1412 1852 bEXN0tpyU41jdD0.exe 37 PID 1852 wrote to memory of 1412 1852 bEXN0tpyU41jdD0.exe 37 PID 1852 wrote to memory of 1412 1852 bEXN0tpyU41jdD0.exe 37 PID 1852 wrote to memory of 1412 1852 bEXN0tpyU41jdD0.exe 37 PID 1852 wrote to memory of 1412 1852 bEXN0tpyU41jdD0.exe 37 PID 1852 wrote to memory of 1412 1852 bEXN0tpyU41jdD0.exe 37 PID 1852 wrote to memory of 1412 1852 bEXN0tpyU41jdD0.exe 37 PID 1852 wrote to memory of 1412 1852 bEXN0tpyU41jdD0.exe 37 PID 1852 wrote to memory of 1412 1852 bEXN0tpyU41jdD0.exe 37 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\bEXN0tpyU41jdD0.exe"C:\Users\Admin\AppData\Local\Temp\bEXN0tpyU41jdD0.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1852 -
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\bEXN0tpyU41jdD0.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2440
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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\TwTVLCxys.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2932
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TwTVLCxys" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3A9.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2828
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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:1412
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD5a307ab3ce62b0d06fba0e932623b46f1
SHA13eea18fb200f47dd84a43c7949842dc698be9e0d
SHA256703a65b55bb7eea2c1c56eaa8401b77ca3a55fd95f2ad4d2952ab39b5d601066
SHA512d8f3f828c33cb300275c4bc3cb053af3e31827e6b9bff482443cf4cf919220d46e3fac3ea339591ec372e85a7b30bfc045da5fb5f9cb5acca14749231e942980
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
Filesize7KB
MD5b4c350531b7a3ead3df6bf13e3fbd58e
SHA1b332898282e643f762cc96139cf95d91e40dee40
SHA25665317c13e234d3bffd8c25d42c5902db5b9b08631983d54691a101983e762dcc
SHA51294777dc6df885324d7d0f5b0fd739fcd62fef1e103a5de7d3b30465b5549431c076c3256c1fb5fe3e369984801dc6daf5b2a0dc7b54c8437e2ef2a46c193005b