Analysis

  • max time kernel
    151s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-08-2023 14:46

General

  • Target

    a8331e50e85849f47d59f1d1f14fd78e.bin.exe

  • Size

    1.1MB

  • MD5

    a8331e50e85849f47d59f1d1f14fd78e

  • SHA1

    709f5b95b0b51079f6b9374a30e0a2319ee2cfa3

  • SHA256

    62f1d4e331c6eaa835a1b1cd59244a6b064f0dfe8b97f07ec51336b6258a1eba

  • SHA512

    c42d6abc7108c2d50bf1f7b272f3c5cff9a5a8134db9fd3a871aab48fd12b74521780b734db1224a6953d4ad0be14dc1e4b0de9a00a6bd1ba8da350e2bdf54e3

  • SSDEEP

    24576:Uo53R8dBoeZfWoXzNOraLyMkKH/5KOguyRs6CE3jLMpppdpppppUO9Rs6CE3jLMt:55CbTf/BEaLyv8YuyRs6CE3jLbO9Rs6I

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\a8331e50e85849f47d59f1d1f14fd78e.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\a8331e50e85849f47d59f1d1f14fd78e.bin.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4712
    • C:\Users\Admin\AppData\Local\Temp\a8331e50e85849f47d59f1d1f14fd78e.bin.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2172

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\a8331e50e85849f47d59f1d1f14fd78e.bin.exe.log

    Filesize

    1KB

    MD5

    17573558c4e714f606f997e5157afaac

    SHA1

    13e16e9415ceef429aaf124139671ebeca09ed23

    SHA256

    c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

    SHA512

    f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

  • memory/2172-143-0x0000000000400000-0x00000000004DA000-memory.dmp

    Filesize

    872KB

  • memory/2172-150-0x0000000005DA0000-0x0000000005E06000-memory.dmp

    Filesize

    408KB

  • memory/2172-149-0x0000000005BC0000-0x0000000005C10000-memory.dmp

    Filesize

    320KB

  • memory/2172-148-0x0000000005270000-0x0000000005280000-memory.dmp

    Filesize

    64KB

  • memory/2172-146-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/4712-137-0x00000000050C0000-0x0000000005152000-memory.dmp

    Filesize

    584KB

  • memory/4712-140-0x00000000052F0000-0x0000000005346000-memory.dmp

    Filesize

    344KB

  • memory/4712-141-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/4712-142-0x0000000004FC0000-0x0000000004FD0000-memory.dmp

    Filesize

    64KB

  • memory/4712-139-0x0000000004FA0000-0x0000000004FAA000-memory.dmp

    Filesize

    40KB

  • memory/4712-138-0x0000000004FC0000-0x0000000004FD0000-memory.dmp

    Filesize

    64KB

  • memory/4712-133-0x0000000000490000-0x00000000005BA000-memory.dmp

    Filesize

    1.2MB

  • memory/4712-147-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/4712-136-0x0000000005670000-0x0000000005C14000-memory.dmp

    Filesize

    5.6MB

  • memory/4712-135-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/4712-134-0x0000000005020000-0x00000000050BC000-memory.dmp

    Filesize

    624KB