Analysis

  • max time kernel
    137s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-08-2024 06:39

General

  • Target

    ExSoftware/Debug/api-ms-win-crt-private-l1-1-0.dll

  • Size

    71KB

  • MD5

    3d139f57ed79d2c788e422ca26950446

  • SHA1

    788e4fb5d1f46b0f1802761d0ae3addb8611c238

  • SHA256

    dc25a882ac454a0071e4815b0e939dc161ba73b5c207b84afd96203c343b99c7

  • SHA512

    12ed9216f44aa5f245c707fe39aed08dc18ea675f5a707098f1a1da42b348a649846bc919fd318de7954ea9097c01f22be76a5d85d664ef030381e7759840765

  • SSDEEP

    1536:g0DjXDe5c4bFE2Jy2cvxXWpD9d3334BkZnVPL9VG:XjDe5c4bFE2Jy2cvxXWpD9d3334BkZnI

Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • 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 use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\ExSoftware\Debug\api-ms-win-crt-private-l1-1-0.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3092
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\ExSoftware\Debug\api-ms-win-crt-private-l1-1-0.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1668
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1668 -s 600
        3⤵
        • Program crash
        PID:3364
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1668 -ip 1668
    1⤵
      PID:2264

    Network

    MITRE ATT&CK Enterprise v15

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    Downloads