Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-03-2024 21:13

General

  • Target

    5e4006f91dabad1c5e0ae08e2241775e_JaffaCakes118.exe

  • Size

    76KB

  • MD5

    5e4006f91dabad1c5e0ae08e2241775e

  • SHA1

    73328586aa35340ade37e1b95522eef12e8314ac

  • SHA256

    1f3ebec39406d9a1db488ee7720e4d174dda862451540da480b834efd654699e

  • SHA512

    139e804381f0a8f0cd03ae056e5c9b298927de9ca04791b190c97130c5c6f2c1038f7029ddecc41d90037e9ad1405af4571a431f567adca676d4c369401e2508

  • SSDEEP

    768:aYiJikJFIULFMBc237bobA7ymRd0uxUDTJL6oNsgBvAyox0cD:avFIULFMAAiu6JL6oNsgFAyox0cD

Malware Config

Extracted

Family

purecrypter

C2

https://store2.gofile.io/download/eb70087b-81a9-4e93-9686-1c2ede8226d9/Xmsulcrmuvqyuqzguomjpi.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\5e4006f91dabad1c5e0ae08e2241775e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\5e4006f91dabad1c5e0ae08e2241775e_JaffaCakes118.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3828
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3828 -s 1768
      2⤵
      • Program crash
      PID:1240
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3828 -ip 3828
    1⤵
      PID:5064

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3828-0-0x0000000000340000-0x0000000000358000-memory.dmp

      Filesize

      96KB

    • memory/3828-1-0x0000000075250000-0x0000000075A00000-memory.dmp

      Filesize

      7.7MB

    • memory/3828-2-0x0000000004E00000-0x0000000004E10000-memory.dmp

      Filesize

      64KB

    • memory/3828-3-0x0000000075250000-0x0000000075A00000-memory.dmp

      Filesize

      7.7MB

    • memory/3828-4-0x0000000004E00000-0x0000000004E10000-memory.dmp

      Filesize

      64KB

    • memory/3828-5-0x0000000075250000-0x0000000075A00000-memory.dmp

      Filesize

      7.7MB