Analysis

  • max time kernel
    110s
  • max time network
    100s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    30/10/2024, 14:35

General

  • Target

    a93edf36ef25a61c0a99b157304430622b69a0182ae853dab26ca2fdc14ee59fN.exe

  • Size

    58KB

  • MD5

    9ab82b2b727ff63da75a23ce811d3420

  • SHA1

    92a8a943e34fa186e18e0ace3c0aaf50c1718c03

  • SHA256

    a93edf36ef25a61c0a99b157304430622b69a0182ae853dab26ca2fdc14ee59f

  • SHA512

    443908cfe6fb01593859707c87e5f62b2d9e63dbcb9330c5af46e577e9fe072ba173660b3c4601f9e4b6cf0c28c654c84c1cd55d44958f84484a39dd31edc24c

  • SSDEEP

    1536:hvQoLHjw2iWPKMvw71/RLyXwvvvZeee5Ltttt7:hv5Ls27BIJ/RLyXweeeRtttt7

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Drops file in Windows directory 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 3 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a93edf36ef25a61c0a99b157304430622b69a0182ae853dab26ca2fdc14ee59fN.exe
    "C:\Users\Admin\AppData\Local\Temp\a93edf36ef25a61c0a99b157304430622b69a0182ae853dab26ca2fdc14ee59fN.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1776
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\A93EDF~1.EXE > nul
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:904
  • C:\Windows\Debug\ayahost.exe
    C:\Windows\Debug\ayahost.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    PID:2056

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\debug\ayahost.exe

          Filesize

          58KB

          MD5

          a12d17bd768d5fc65020009c1ecc2551

          SHA1

          920a51983e8c94ab6b61f0fc05ef35ee7b75f4b2

          SHA256

          fb2343aea644efcc372f640d5a262995332e8712284a68263474d9ef45c07b97

          SHA512

          228ad2b15e7fbc6eaf01a07958466c4248ad232313854355da09a21f59048311ed0ccd204ea2daf9b0fe1b03af188c8bc110ee1300e6c44956f16c37bdb9e5d8