Analysis

  • max time kernel
    232s
  • max time network
    337s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2022 21:05

General

  • Target

    Americanas -NFE -753400096-201401002.dll

  • Size

    509KB

  • MD5

    5c1dec1a74d1aefc398106629c9e12a7

  • SHA1

    a07667dabe1dcff4c6b9f4aad3799b2101310067

  • SHA256

    73a85512a5f5f4bbbc7ac3e19915f9580e3d54b733cc68addf2375c973c6e503

  • SHA512

    8ca064e20498ead2cb8ac91c253c5c3d3de545396d795080270748850b5994c3edaad4645ab80a98fe3f96325f493dd1a47fdbd194b11c36e57dcbf1ef840526

  • SSDEEP

    12288:/bYWEtwL25NYe3dCFTkJT/ln1xf4Fq/AFa30wsM2:/AjSe4FWl1CFnaEc2

Score
8/10

Malware Config

Signatures

  • VMProtect packed file 2 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\Temp\Americanas -NFE -753400096-201401002.dll",#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1868
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe "C:\Users\Admin\AppData\Local\Temp\Americanas -NFE -753400096-201401002.dll",#1
      2⤵
        PID:664

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/664-54-0x0000000000000000-mapping.dmp

    • memory/664-55-0x0000000075C11000-0x0000000075C13000-memory.dmp

      Filesize

      8KB

    • memory/664-56-0x0000000000890000-0x00000000009BD000-memory.dmp

      Filesize

      1.2MB

    • memory/664-58-0x0000000000890000-0x00000000009BD000-memory.dmp

      Filesize

      1.2MB