Analysis
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max time kernel
118s -
max time network
147s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
06-01-2025 15:02
Static task
static1
Behavioral task
behavioral1
Sample
documentpdf.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
documentpdf.exe
Resource
win10v2004-20241007-en
General
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Target
documentpdf.exe
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Size
742KB
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MD5
c67b6ff2d472bf82dc4da545dbc37a43
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SHA1
c5e677e5e48d5ca965b6e2d3f0c8b56fb80e7be5
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SHA256
df3c8cc4eaf6b0a8a6a0254c54160486df1b38f8a6591a60dbc520f38389c400
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SHA512
69ba6f8e9e99f09a669ae875412af6bcb87dd649161e8e725be05c9db2ce8fe20da88de509cd9208a427b93172caeb94ed588efa5697eb0ebf5fe262d8943e11
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SSDEEP
12288:74doaeS+/ZgdvAC+O8DzxPzNjZGtypP2q2PEexgQNqaCBCrRKNr6sj9Gn:EdFeSTdv+O8vxPzNjUtE7280RNqaLrMc
Malware Config
Extracted
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
wVCMFq@2wVCMFq@2
Extracted
vipkeylogger
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
wVCMFq@2wVCMFq@2 - 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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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 documentpdf.exe Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 documentpdf.exe Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 documentpdf.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 8 reallyfreegeoip.org 9 reallyfreegeoip.org 4 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 784 set thread context of 2144 784 documentpdf.exe 31 -
Program crash 1 IoCs
pid pid_target Process procid_target 2796 784 WerFault.exe 30 -
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 documentpdf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language documentpdf.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2144 documentpdf.exe 2144 documentpdf.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2144 documentpdf.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 784 wrote to memory of 2144 784 documentpdf.exe 31 PID 784 wrote to memory of 2144 784 documentpdf.exe 31 PID 784 wrote to memory of 2144 784 documentpdf.exe 31 PID 784 wrote to memory of 2144 784 documentpdf.exe 31 PID 784 wrote to memory of 2144 784 documentpdf.exe 31 PID 784 wrote to memory of 2144 784 documentpdf.exe 31 PID 784 wrote to memory of 2144 784 documentpdf.exe 31 PID 784 wrote to memory of 2144 784 documentpdf.exe 31 PID 784 wrote to memory of 2144 784 documentpdf.exe 31 PID 784 wrote to memory of 2796 784 documentpdf.exe 32 PID 784 wrote to memory of 2796 784 documentpdf.exe 32 PID 784 wrote to memory of 2796 784 documentpdf.exe 32 PID 784 wrote to memory of 2796 784 documentpdf.exe 32 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 documentpdf.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 documentpdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\documentpdf.exe"C:\Users\Admin\AppData\Local\Temp\documentpdf.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:784 -
C:\Users\Admin\AppData\Local\Temp\documentpdf.exe"C:\Users\Admin\AppData\Local\Temp\documentpdf.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:2144
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 784 -s 7002⤵
- Program crash
PID:2796
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