Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-04-2024 23:09

General

  • Target

    99a0109485e8ca6d9ee2b809390d89b8_JaffaCakes118.exe

  • Size

    76KB

  • MD5

    99a0109485e8ca6d9ee2b809390d89b8

  • SHA1

    ea89519b812adc5dff90531a6c64c987d6d109d8

  • SHA256

    53d520c1f12fe4e479c6e31626f7d4aba5a65d107c1a13401380ebca7cca5b05

  • SHA512

    5ec47bef15f1521c2cb5dc14a59c11dde14bd693f7df64991bb1268305eff03c8e0adc5fa6e2ddd6d5eecd1f9ac5c5ea0a90f4c6c6349348afb97a42a43fede8

  • SSDEEP

    768:lw1QHHkyIULFMBc237bobA7ymRd0uxUDTJL6oNsgBvAyox0cf:l3tIULFMAAiu6JL6oNsgFAyox0cf

Malware Config

Extracted

Family

purecrypter

C2

https://store2.gofile.io/download/0283e6ba-afc6-4dcb-b2f4-3173d666e2c4/Huzeigtmvaplpinhoo.dll

Signatures

  • PureCrypter

    PureCrypter is a .NET malware loader first seen in early 2021.

  • Program crash 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\99a0109485e8ca6d9ee2b809390d89b8_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\99a0109485e8ca6d9ee2b809390d89b8_JaffaCakes118.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4108
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4108 -s 1808
      2⤵
      • Program crash
      PID:4028
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4108 -ip 4108
    1⤵
      PID:996

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4108-0-0x0000000000150000-0x0000000000168000-memory.dmp

      Filesize

      96KB

    • memory/4108-1-0x00000000750F0000-0x00000000758A0000-memory.dmp

      Filesize

      7.7MB

    • memory/4108-2-0x0000000004B50000-0x0000000004B60000-memory.dmp

      Filesize

      64KB

    • memory/4108-3-0x00000000750F0000-0x00000000758A0000-memory.dmp

      Filesize

      7.7MB

    • memory/4108-4-0x00000000750F0000-0x00000000758A0000-memory.dmp

      Filesize

      7.7MB