Analysis

  • max time kernel
    147s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-12-2023 04:36

General

  • Target

    54a5f99822a066788b005a9eabe2dea0.exe

  • Size

    1.5MB

  • MD5

    54a5f99822a066788b005a9eabe2dea0

  • SHA1

    9f13c7eda44d609427c6b37655bf7b3d32e5abeb

  • SHA256

    45930aced8c185ad02fafc0f7299d48a44d14331fdc2cdf599bd3aa92faf82f1

  • SHA512

    2bca4f48fb8f9843d6b597087c8f7526890cca284b152fda89f16eef491b88d3b7c3e2a0bd5d74dddf2498e4be995c04259a537c87269f8406307ebeca563fcc

  • SSDEEP

    24576:UJd5dnADbdI0fRQMUYTY+uhqh98zeEQrtg6kgyD12S:CXdAHPRFjTYLS8zDug7gs7

Score
10/10

Malware Config

Extracted

Family

arkei

C2

185.248.102.41/fixe%00/crate.php

Signatures

  • Arkei

    Arkei is an infostealer written in C++.

  • CustAttr .NET packer 1 IoCs

    Detects CustAttr .NET packer in memory.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\54a5f99822a066788b005a9eabe2dea0.exe
    "C:\Users\Admin\AppData\Local\Temp\54a5f99822a066788b005a9eabe2dea0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3368
    • C:\Users\Admin\AppData\Local\Temp\54a5f99822a066788b005a9eabe2dea0.exe
      "C:\Users\Admin\AppData\Local\Temp\54a5f99822a066788b005a9eabe2dea0.exe"
      2⤵
        PID:3572

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3368-8-0x00000000044C0000-0x00000000044D2000-memory.dmp

      Filesize

      72KB

    • memory/3368-13-0x0000000005080000-0x000000000509E000-memory.dmp

      Filesize

      120KB

    • memory/3368-0-0x0000000075380000-0x0000000075B30000-memory.dmp

      Filesize

      7.7MB

    • memory/3368-3-0x0000000004AF0000-0x0000000004B82000-memory.dmp

      Filesize

      584KB

    • memory/3368-4-0x0000000004AD0000-0x0000000004AE0000-memory.dmp

      Filesize

      64KB

    • memory/3368-6-0x0000000004C30000-0x0000000004CCC000-memory.dmp

      Filesize

      624KB

    • memory/3368-5-0x0000000004A50000-0x0000000004A51000-memory.dmp

      Filesize

      4KB

    • memory/3368-7-0x0000000004BF0000-0x0000000004BFA000-memory.dmp

      Filesize

      40KB

    • memory/3368-2-0x00000000050A0000-0x0000000005644000-memory.dmp

      Filesize

      5.6MB

    • memory/3368-9-0x0000000075380000-0x0000000075B30000-memory.dmp

      Filesize

      7.7MB

    • memory/3368-11-0x0000000006140000-0x00000000061AC000-memory.dmp

      Filesize

      432KB

    • memory/3368-10-0x0000000004AD0000-0x0000000004AE0000-memory.dmp

      Filesize

      64KB

    • memory/3368-12-0x0000000006570000-0x00000000065F8000-memory.dmp

      Filesize

      544KB

    • memory/3368-1-0x0000000000080000-0x0000000000200000-memory.dmp

      Filesize

      1.5MB

    • memory/3368-19-0x0000000075380000-0x0000000075B30000-memory.dmp

      Filesize

      7.7MB

    • memory/3572-17-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/3572-18-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/3572-14-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/3572-20-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB