Analysis
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max time kernel
105s -
max time network
137s -
platform
windows10-2004_x64 -
resource
win10v2004-20250314-en -
resource tags
arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system -
submitted
28/03/2025, 13:20
Static task
static1
Behavioral task
behavioral1
Sample
(STC) DRAFT BL.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
(STC) DRAFT BL.exe
Resource
win10v2004-20250314-en
General
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Target
(STC) DRAFT BL.exe
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Size
1023KB
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MD5
1f2316cbbb6f340ea45753ea5c889f11
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SHA1
3b49e0d165f9be0ac0443fa75ce4dcd25901dbcf
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SHA256
81f89461fc1feee34ad39a56fb386ed8e65eabe13416a20baa5b7adc6593e138
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SHA512
2c20d1fa92ac69af1f9757681dd06ae06379ba329df79bd4c14b6b04b7797a697884f0693388259481c0c3db0bf4597c845133c18902296a53804b7b59ddcc4a
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SSDEEP
24576:eu6J33O0c+JY5UZ+XC0kGso6FarIr1i3t07aEWY:wu0c++OCvkGs9FarZ3t0gY
Malware Config
Extracted
vipkeylogger
https://api.telegram.org/bot7332888932:AAEd0xO46FUg-eZu8OorYiVnZ_y4D9P2pCE/sendMessage?chat_id=7128988401
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-1-5-21-308834014-1004923324-1191300197-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-308834014-1004923324-1191300197-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-308834014-1004923324-1191300197-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\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 7 checkip.dyndns.org 9 reallyfreegeoip.org 10 reallyfreegeoip.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4592 set thread context of 5256 4592 (STC) DRAFT BL.exe 91 -
Program crash 1 IoCs
pid pid_target Process procid_target 1848 4592 WerFault.exe 87 -
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 (STC) DRAFT BL.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegSvcs.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 5256 RegSvcs.exe 5256 RegSvcs.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4592 (STC) DRAFT BL.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 5256 RegSvcs.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4592 (STC) DRAFT BL.exe 4592 (STC) DRAFT BL.exe -
Suspicious use of SendNotifyMessage 2 IoCs
pid Process 4592 (STC) DRAFT BL.exe 4592 (STC) DRAFT BL.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4592 wrote to memory of 5256 4592 (STC) DRAFT BL.exe 91 PID 4592 wrote to memory of 5256 4592 (STC) DRAFT BL.exe 91 PID 4592 wrote to memory of 5256 4592 (STC) DRAFT BL.exe 91 PID 4592 wrote to memory of 5256 4592 (STC) DRAFT BL.exe 91 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-308834014-1004923324-1191300197-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-308834014-1004923324-1191300197-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\(STC) DRAFT BL.exe"C:\Users\Admin\AppData\Local\Temp\(STC) DRAFT BL.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:4592 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Users\Admin\AppData\Local\Temp\(STC) DRAFT BL.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:5256
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4592 -s 6922⤵
- Program crash
PID:1848
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4592 -ip 45921⤵PID:5776