Analysis

  • max time kernel
    93s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-07-2024 05:47

General

  • Target

    f92da20988e80b206c376f7241eb1af7c40df0c9f088fa0177828ca2f7746b4b.exe

  • Size

    7KB

  • MD5

    69a6b8a3793e0caa72ae7a4f4f577a83

  • SHA1

    f23e10eea5fbc40ddabda04b3eb78c8382737001

  • SHA256

    f92da20988e80b206c376f7241eb1af7c40df0c9f088fa0177828ca2f7746b4b

  • SHA512

    7d0e2c507ab3fb3872b15d4d099212046120c98c64760d060a7dd3ea69e09856d0e62b615e7473344bcb62a8a3d9216ecfd6de2d0d7d33380b8f3d56209415db

  • SSDEEP

    96:aYdC15aA2oo2JvOdrtv7KRo9zC6skJjgjZEkWrDSk1YdaKNp6Ny3EXzNt:p+vJJOrtv7KO5lsCAHWrDSwZyw

Malware Config

Extracted

Family

purecrypter

C2

https://onedrive.live.com/download?cid=B044AF3D48F7B886&resid=B044AF3D48F7B886%21118&authkey=AMf3wpfQszHiX6s

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\f92da20988e80b206c376f7241eb1af7c40df0c9f088fa0177828ca2f7746b4b.exe
    "C:\Users\Admin\AppData\Local\Temp\f92da20988e80b206c376f7241eb1af7c40df0c9f088fa0177828ca2f7746b4b.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3720
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3720 -s 1724
      2⤵
      • Program crash
      PID:4724
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3720 -ip 3720
    1⤵
      PID:2028

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3720-0-0x000000007469E000-0x000000007469F000-memory.dmp

      Filesize

      4KB

    • memory/3720-1-0x0000000000F20000-0x0000000000F28000-memory.dmp

      Filesize

      32KB

    • memory/3720-2-0x0000000074690000-0x0000000074E40000-memory.dmp

      Filesize

      7.7MB

    • memory/3720-3-0x000000007469E000-0x000000007469F000-memory.dmp

      Filesize

      4KB

    • memory/3720-4-0x0000000074690000-0x0000000074E40000-memory.dmp

      Filesize

      7.7MB

    • memory/3720-5-0x0000000074690000-0x0000000074E40000-memory.dmp

      Filesize

      7.7MB