Analysis

  • max time kernel
    148s
  • max time network
    129s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250410-en
  • resource tags

    arch:x64arch:x86image:win11-20250410-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    22/04/2025, 17:30

General

  • Target
    GUP.exe
  • Size 2.1MB
  • Sample250422-v27p3ssvbx
  • SHA256 9861b4a602eee6742bfcb24f2d262a67f0dc768826e1be1acc3ba84c4a15d0f5
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Drops startup file 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 46 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 59 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    PID:3296
    • C:\Users\Admin\AppData\Local\Temp\GUP.exe
      "C:\Users\Admin\AppData\Local\Temp\GUP.exe"
      2⤵
      • Drops startup file
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2076

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        memory/2076-34-0x0000000073FD0000-0x0000000074781000-memory.dmp

        memory/2076-6-0x0000000002720000-0x0000000002721000-memory.dmp

        memory/2076-3-0x00000000024D0000-0x00000000024D1000-memory.dmp

        memory/2076-2-0x0000000002720000-0x0000000002721000-memory.dmp

        memory/2076-53-0x0000000073FD0000-0x0000000074781000-memory.dmp

        memory/2076-5-0x00000000024F0000-0x0000000002570000-memory.dmp

        memory/2076-33-0x0000000073FDE000-0x0000000073FDF000-memory.dmp

        memory/2076-7-0x0000000002B80000-0x0000000002C3D000-memory.dmp

        memory/2076-8-0x0000000002C40000-0x0000000002FB4000-memory.dmp

        memory/2076-31-0x0000000003710000-0x0000000003760000-memory.dmp

        memory/2076-1-0x0000000077DC4000-0x0000000077DC5000-memory.dmp

        memory/2076-32-0x0000000000400000-0x0000000000622000-memory.dmp

        memory/2076-41-0x0000000073FD0000-0x0000000074781000-memory.dmp

        memory/2076-35-0x0000000073FD0000-0x0000000074781000-memory.dmp

        memory/2076-40-0x0000000073FD0000-0x0000000074781000-memory.dmp

        memory/2076-39-0x0000000005E20000-0x0000000005EE4000-memory.dmp

        memory/2076-0-0x00000000024F0000-0x0000000002570000-memory.dmp

        memory/2076-42-0x0000000073FDE000-0x0000000073FDF000-memory.dmp

        memory/2076-45-0x00000000063B0000-0x0000000006416000-memory.dmp

        memory/2076-46-0x0000000073FD0000-0x0000000074781000-memory.dmp

        memory/2076-47-0x0000000073FD0000-0x0000000074781000-memory.dmp

        memory/2076-48-0x0000000073FD0000-0x0000000074781000-memory.dmp

        memory/2076-49-0x0000000073FD0000-0x0000000074781000-memory.dmp

        memory/3296-4-0x00000000027E0000-0x00000000027E1000-memory.dmp