Analysis
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max time kernel
122s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
25/02/2025, 07:49
Static task
static1
Behavioral task
behavioral1
Sample
Attach invoice 90263DL.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
Attach invoice 90263DL.exe
Resource
win10v2004-20250217-en
General
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Target
Attach invoice 90263DL.exe
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Size
889KB
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MD5
37eaddd42f6a48b48b9b3034ce1f110b
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SHA1
923a0d8a4bc8e16e45346325895e8f8e3e3e6fbe
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SHA256
af8e3a881c404bab033ecfb5163924dd6f77a7f45b3e18c26cb172058cb935f2
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SHA512
40db735ea44835262848023988f6ec7ee9b4376cf83b07e5f4718bb75a32605fa37d8cde664f74cbeb91fabe4b3d334752ef018d987b3e99f706616107ee14ff
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SSDEEP
24576:nb8GeHc7aywIASaNItcYjLLSkAsZ64y7:nQGeHsLwI8G+Y+kAsZJA
Malware Config
Extracted
vipkeylogger
Protocol: smtp- Host:
hosting2.ro.hostsailor.com - Port:
587 - Username:
[email protected] - Password:
7213575aceACE@@ - 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 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 2708 powershell.exe -
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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Attach invoice 90263DL.exe Key opened \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Attach invoice 90263DL.exe Key opened \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Attach invoice 90263DL.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 2696 set thread context of 2872 2696 Attach invoice 90263DL.exe 32 -
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 3 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 powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Attach invoice 90263DL.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Attach invoice 90263DL.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 2872 Attach invoice 90263DL.exe 2708 powershell.exe 2872 Attach invoice 90263DL.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2872 Attach invoice 90263DL.exe Token: SeDebugPrivilege 2708 powershell.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 2696 wrote to memory of 2708 2696 Attach invoice 90263DL.exe 30 PID 2696 wrote to memory of 2708 2696 Attach invoice 90263DL.exe 30 PID 2696 wrote to memory of 2708 2696 Attach invoice 90263DL.exe 30 PID 2696 wrote to memory of 2708 2696 Attach invoice 90263DL.exe 30 PID 2696 wrote to memory of 2872 2696 Attach invoice 90263DL.exe 32 PID 2696 wrote to memory of 2872 2696 Attach invoice 90263DL.exe 32 PID 2696 wrote to memory of 2872 2696 Attach invoice 90263DL.exe 32 PID 2696 wrote to memory of 2872 2696 Attach invoice 90263DL.exe 32 PID 2696 wrote to memory of 2872 2696 Attach invoice 90263DL.exe 32 PID 2696 wrote to memory of 2872 2696 Attach invoice 90263DL.exe 32 PID 2696 wrote to memory of 2872 2696 Attach invoice 90263DL.exe 32 PID 2696 wrote to memory of 2872 2696 Attach invoice 90263DL.exe 32 PID 2696 wrote to memory of 2872 2696 Attach invoice 90263DL.exe 32 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Attach invoice 90263DL.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Attach invoice 90263DL.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Attach invoice 90263DL.exe"C:\Users\Admin\AppData\Local\Temp\Attach invoice 90263DL.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2696 -
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\Attach invoice 90263DL.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2708
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C:\Users\Admin\AppData\Local\Temp\Attach invoice 90263DL.exe"C:\Users\Admin\AppData\Local\Temp\Attach invoice 90263DL.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:2872
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Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2