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Analysis

  • max time kernel
    141s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    11/11/2023, 10:45

General

  • Target

    e9fdc7c9f967ae208a63fffd55b08876761bfe4d6b769fb442b1e45289879e76.exe

  • Size

    194KB

  • MD5

    a65a1b9b45b85f5b8b9fd09bf8295511

  • SHA1

    977bf54b60813c6a429d24f50839646d0ae83fba

  • SHA256

    e9fdc7c9f967ae208a63fffd55b08876761bfe4d6b769fb442b1e45289879e76

  • SHA512

    f830fdde7327af98146177d9ada645caf10132cb2f47f24a564d3c38e6b15496b631c58974cd5ca70206010459ff5b20b84fc7901ccf99158dcd6f96a7a57427

  • SSDEEP

    6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOU:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXx

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\e9fdc7c9f967ae208a63fffd55b08876761bfe4d6b769fb442b1e45289879e76.exe
    "C:\Users\Admin\AppData\Local\Temp\e9fdc7c9f967ae208a63fffd55b08876761bfe4d6b769fb442b1e45289879e76.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2516
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\E9FDC7~1.EXE > nul
      2⤵
      • Deletes itself
      PID:2856
  • C:\Windows\Debug\zskhost.exe
    C:\Windows\Debug\zskhost.exe
    1⤵
    • Executes dropped EXE
    • Checks processor information in registry
    PID:2284

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\Debug\zskhost.exe

    Filesize

    194KB

    MD5

    515c4a7f4f89c052c885e5fdad968a9d

    SHA1

    828acc7108ee8b775209e7732b0aa762ab24b02e

    SHA256

    3394f9556c233cd3293f2f0dea0b1b0cd2a458386064fb921cd69855b92bf77f

    SHA512

    3c68842747a0acad8f42cba6fe16f3410fa3909bba9572ea2303b33d5d45f316e022f5075faf6227b0a797c851fd8113de740198f44aef38799f1426dac63482

  • C:\Windows\debug\zskhost.exe

    Filesize

    194KB

    MD5

    515c4a7f4f89c052c885e5fdad968a9d

    SHA1

    828acc7108ee8b775209e7732b0aa762ab24b02e

    SHA256

    3394f9556c233cd3293f2f0dea0b1b0cd2a458386064fb921cd69855b92bf77f

    SHA512

    3c68842747a0acad8f42cba6fe16f3410fa3909bba9572ea2303b33d5d45f316e022f5075faf6227b0a797c851fd8113de740198f44aef38799f1426dac63482