Overview

overview

10

Static

static

10

Arsenic.exe

windows10-2004-x64

10

Arsenic.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    Arsenic.exe
  • Size 3.9MB
  • Sample260627-ntyzmsa12k
  • SHA256 929f38373bab0171e9a0296342213ef2bf03630d58083ce1f02dc9c4d7280609
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasarxredarsenicbackdoordiscoveryexecutionmacropersistencespywaretrojan

Malware Config

Extracted

Family

  • xred

C2

  • xred.mooo.com

Attributes
  • email

    [email protected]

  • payload_url

    http://freedns.afraid.org/api/?action=getdyndns&sha=a30fa98efc092684e8d1c5cff797bcc613562978

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=download

    https://www.dropbox.com/s/n1w4p8gc6jzo0sg/SUpdate.ini?dl=1

    http://xred.site50.net/syn/SUpdate.ini

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVzUyaHFYVkQxeFk&export=download

    https://www.dropbox.com/s/zhp1b06imehwylq/Synaptics.rar?dl=1

    http://xred.site50.net/syn/Synaptics.rar

    https://docs.google.com/uc?id=0BxsMXGfPIZfSTmlVYkxhSDg5TzQ&export=download

    https://www.dropbox.com/s/fzj752whr3ontsm/SSLLibrary.dll?dl=1

    http://xred.site50.net/syn/SSLLibrary.dll

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Arsenic

C2

  • 169.254.93.181:4782

Mutex

  • d83f789b-5f35-4daa-a84a-578d8941466e

Attributes
  • encryption_key

    E8F2872F7A4455DEABA7A82F816B13445AA5875E

  • install_name

    c32r9nu.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    DAX API

  • subdirectory

    43b78tr

Targets

    • Target
      Arsenic.exe
    • Size 3.9MB
    • SHA256 929f38373bab0171e9a0296342213ef2bf03630d58083ce1f02dc9c4d7280609
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    backdoorarsenicdiscoveryexecutionquasarxredpersistencespywaretrojanmacro

    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Family: Xred

      Xred is backdoor written in Delphi.

      backdoorxred

    • Quasar payload

    • Suspicious Office macro

      Office document equipped with macros.

      macro

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks