Resubmissions

30-10-2024 21:02

241030-zvd7eazlev 10

30-10-2024 19:27

241030-x6eafazemg 10

24-10-2024 22:13

241024-144zvsvhpq 10

General

  • Target

    15c8cc6c27eab9e8c6e8e01883247ffc4a3907042d747859fff2ce622f9647dc

  • Size

    578KB

  • Sample

    241024-144zvsvhpq

  • MD5

    0fc72f5b6c6a6109f6f3c3d43089e422

  • SHA1

    7b05b6c35e5f1c2dd4aa215b4c0289c970b9cdab

  • SHA256

    15c8cc6c27eab9e8c6e8e01883247ffc4a3907042d747859fff2ce622f9647dc

  • SHA512

    fcb4251dd52a6bb04009078c5fe38ce014c50091c09c8b54ba3a1d8b910cdf4c915deb7b91838da53033d7da3602057453d651cdb561acc9d634962e31e2c5e3

  • SSDEEP

    12288:rlMq2L06Z/oQNgZHjow6V3hLfIW2MxcSg4bQ5RtlcrdxYf:ZILJ9olJowwRLAWFDgqzdif

Malware Config

Extracted

Family

asyncrat

Version

true

Botnet

LNjector

Mutex

NglVnt43hRGA

Attributes
  • delay

    3

  • install

    false

  • install_file

    $77oui.exe

  • install_folder

    %StartupStatus%

  • pastebin_config

    https://pastebin.com/raw/e0jEz3T0

aes.plain
aes.plain

Targets

    • Target

      15c8cc6c27eab9e8c6e8e01883247ffc4a3907042d747859fff2ce622f9647dc

    • Size

      578KB

    • MD5

      0fc72f5b6c6a6109f6f3c3d43089e422

    • SHA1

      7b05b6c35e5f1c2dd4aa215b4c0289c970b9cdab

    • SHA256

      15c8cc6c27eab9e8c6e8e01883247ffc4a3907042d747859fff2ce622f9647dc

    • SHA512

      fcb4251dd52a6bb04009078c5fe38ce014c50091c09c8b54ba3a1d8b910cdf4c915deb7b91838da53033d7da3602057453d651cdb561acc9d634962e31e2c5e3

    • SSDEEP

      12288:rlMq2L06Z/oQNgZHjow6V3hLfIW2MxcSg4bQ5RtlcrdxYf:ZILJ9olJowwRLAWFDgqzdif

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Async RAT payload

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks