Analysis

  • max time kernel
    93s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/11/2024, 09:25

General

  • Target
    Rendelési szám 11-2024-pdf.bat.exe
  • Size 969KB
  • Sample241125-ldly2azlbs
  • SHA256 356358084caa4c8fbc4db1da7c5a15c9566182f8193dd17a979c22d0012c5016
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Guloader family
  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Loads dropped DLL 6 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 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 14 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Rendelési szám 11-2024-pdf.bat.exe
    "C:\Users\Admin\AppData\Local\Temp\Rendelési szám 11-2024-pdf.bat.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:4944
    • C:\Users\Admin\AppData\Local\Temp\Rendelési szám 11-2024-pdf.bat.exe
      "C:\Users\Admin\AppData\Local\Temp\Rendelési szám 11-2024-pdf.bat.exe"
      2⤵
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:1604

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        LangDLL.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsdB47C.tmp\LangDLL.dll
        • Size 5KB
        • SHA256 86cff5eaca76c49f924cb123d242fdcfd45ab99c4b638d3b8f4a8cfb1970ab5b
        • MD5 SHA1 SHA512 SSDEEP

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsdB47C.tmp\System.dll
        • Size 11KB
        • SHA256 a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7
        • MD5 SHA1 SHA512 SSDEEP

        memory/1604-35-0x0000000000400000-0x0000000001654000-memory.dmp

        memory/1604-41-0x0000000000400000-0x0000000001654000-memory.dmp

        memory/1604-38-0x0000000000400000-0x0000000001654000-memory.dmp

        memory/1604-37-0x0000000077201000-0x0000000077321000-memory.dmp

        memory/1604-36-0x0000000001660000-0x0000000003298000-memory.dmp

        memory/1604-32-0x0000000000400000-0x0000000001654000-memory.dmp

        memory/1604-33-0x0000000001660000-0x0000000003298000-memory.dmp

        memory/1604-34-0x0000000000400000-0x0000000001654000-memory.dmp

        memory/4944-28-0x0000000004A50000-0x0000000006688000-memory.dmp

        memory/4944-31-0x0000000004A50000-0x0000000006688000-memory.dmp

        memory/4944-30-0x0000000074064000-0x0000000074065000-memory.dmp

        memory/4944-29-0x0000000077201000-0x0000000077321000-memory.dmp

        memory/4944-27-0x0000000004A50000-0x0000000006688000-memory.dmp