Analysis

  • max time kernel
    88s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-01-2023 06:59

General

  • Target

    9hmhx13dh.exe

  • Size

    2.3MB

  • MD5

    4dc6391e49046252c6effd467c679804

  • SHA1

    19b4ae58c609825294a66643fdb5779e04957aab

  • SHA256

    c691c174c042a1f23f13b420abad454bd4b843e1033119080114da0a99cfdfff

  • SHA512

    b78ab0ba6aa99bb516cf4445bec01548801430863630e53d7a08dc985cfbd360455937369ce94242886fecd4ddf7f877fb284b50881119271d5eae59a8ab83b4

  • SSDEEP

    49152:TZM+U574kFRDQc2bUyVe/l/usb/iC+nkalNs+IIWpxIF989O3:T+7pfRPV/l/v/iC+kye+hex3

Score
10/10

Malware Config

Signatures

  • DcRat

    DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

  • DCRat payload 1 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9hmhx13dh.exe
    "C:\Users\Admin\AppData\Local\Temp\9hmhx13dh.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4700
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4356

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/4356-132-0x0000000000000000-mapping.dmp
  • memory/4356-133-0x0000000000400000-0x00000000005E2000-memory.dmp
    Filesize

    1.9MB

  • memory/4356-134-0x0000000006580000-0x0000000006B24000-memory.dmp
    Filesize

    5.6MB

  • memory/4356-135-0x0000000006110000-0x0000000006160000-memory.dmp
    Filesize

    320KB

  • memory/4356-136-0x0000000007C80000-0x0000000007D12000-memory.dmp
    Filesize

    584KB

  • memory/4356-137-0x0000000008250000-0x000000000877C000-memory.dmp
    Filesize

    5.2MB

  • memory/4356-138-0x0000000007E20000-0x0000000007E86000-memory.dmp
    Filesize

    408KB