Analysis
- max time kernel
150s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
04/08/2026, 12:19
General
- Target Justificante.exe
- Size 457KB
- Sample260804-phancazfjd
- SHA256 3bdc3b84e2970207b3e67191c3665ff676a5dfdab8331e4cd4787dee7decda82
Malware Config
Extracted
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vipkeylogger
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https://api.telegram.org/bot8952917043:AAHayCUkLWgZtiplw7yD7b94fz3VDzBV20Q/sendMessage?chat_id=8579883216
Signatures
- Family: Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Family: VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
- Loads dropped DLL 1 IoCs
- Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- Looks up external IP address via web service 1 TTPs 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
- Suspicious behavior: EnumeratesProcesses 1 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Justificante.exe"C:\Users\Admin\AppData\Local\Temp\Justificante.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Justificante.exe"C:\Users\Admin\AppData\Local\Temp\Justificante.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\Justificante.exe"C:\Users\Admin\AppData\Local\Temp\Justificante.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Justificante.exe"C:\Users\Admin\AppData\Local\Temp\Justificante.exe"3⤵
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
System.dll
memory/1096-14-0x0000000001770000-0x0000000003213000-memory.dmp
memory/1096-24-0x0000000000480000-0x0000000001766000-memory.dmp
memory/1096-25-0x0000000001770000-0x0000000003213000-memory.dmp
memory/1096-27-0x0000000000480000-0x00000000004CA000-memory.dmp
memory/1096-26-0x0000000000480000-0x0000000001766000-memory.dmp
memory/1096-28-0x0000000036740000-0x0000000036CFA000-memory.dmp
memory/1096-29-0x0000000036D00000-0x0000000036D9C000-memory.dmp
memory/2856-12-0x0000000006150000-0x0000000007BF3000-memory.dmp
memory/2856-13-0x0000000010004000-0x0000000010005000-memory.dmp