Analysis

  • max time kernel
    142s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    04/11/2023, 08:36

General

  • Target

    809852ffea8c153ff88ddcad0299224e9177535e293ec0d580c61747b9248bf6.exe

  • Size

    193KB

  • MD5

    98a7a9bfa7080f96ddf437cc1e66d3d2

  • SHA1

    91238833ab01f0e1ef78306ed441770789fac04e

  • SHA256

    809852ffea8c153ff88ddcad0299224e9177535e293ec0d580c61747b9248bf6

  • SHA512

    1cf4f2c8bd44c90f750384831985c343ae1e0a53e25b0aed0045fcccac07337048b9c7d890d64f7500b4f46564af8a14ea3c9ab4f8e8a7a7181050b057c4c795

  • SSDEEP

    6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOh:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXs

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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\809852ffea8c153ff88ddcad0299224e9177535e293ec0d580c61747b9248bf6.exe
    "C:\Users\Admin\AppData\Local\Temp\809852ffea8c153ff88ddcad0299224e9177535e293ec0d580c61747b9248bf6.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2552
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\809852~1.EXE > nul
      2⤵
      • Deletes itself
      PID:2148
  • C:\Windows\Debug\ayahost.exe
    C:\Windows\Debug\ayahost.exe
    1⤵
    • Executes dropped EXE
    • Checks processor information in registry
    PID:2528

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\debug\ayahost.exe

    Filesize

    193KB

    MD5

    dcaa696e8b9661d979bffaa9cb2399dc

    SHA1

    412580813e802241624d9e56d150d315e66fc444

    SHA256

    b620a84f84d4f1315537f0062df6edef2746a93b36e51cca4639d8fe0f63e30f

    SHA512

    c8526e642aff18dbb8e5e02ca4ba89c426210a1ac918b7ddebb842fada229668477717ab3d361f1faf7d797862a3ef691e0f003d0f47a91446d73d16e6d329fa