Resubmissions

03/05/2024, 18:32

240503-w6335aga76

03/05/2024, 18:24

240503-w16basfh8210

General

  • Target
    obvious rat niggaa.zip
  • Size 1.6MB
  • Sample240503-w16basfh82
  • SHA256 0ab74ff99068e4cdaf14dc3770619637a92381be06682ff77578050b4ab4265e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • quasar

Version
  • 3.1.5

Botnet
  • $77 Flusher

C2
  • even-lemon.gl.at.ply.gg:33587

Mutex
  • $Sxr-3vDee7FzoJnhqjuE3n

Attributes
  • encryption_key

    GX9vycIPcQc04h4dOPgm

  • install_name

    $77Remover.exe

  • log_directory

    Logs

  • reconnect_delay

    1000

  • startup_key

    $77 Rootkit Remover

  • subdirectory

    $77 Removal Tool

Targets

    • Target
      $77 Detection.dll
    • Size 1.3MB
    • SHA256 41508af363730c9df614bfe3e498cf5dc4565ec54907f7fb26bd86194e5ff3de
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      $77 Removal Tool.exe
    • Size 409KB
    • SHA256 ad4f988a89e1ca7d8db44144b8b344a74f10b1a7e3643ad32782c9c24a3bfcb9
    • MD5 SHA1 SHA512 SSDEEP
    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Downloads MZ/PE file

    • Sets service image path in registry

    • Executes dropped EXE

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    • Target
      Guna.UI2.dll
    • Size 1.9MB
    • SHA256 836e1cc306eab0817a10c613a9c99d4dcbd604624b8b90f551d410dc164eef82
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      Mono.Cecil.dll
    • Size 277KB
    • SHA256 3e4288b32006fe8499b43a7f605bb7337931847a0aa79a33217a1d6d1a6c397e
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      Mono.Nat.dll
    • Size 40KB
    • SHA256 b33435ac7cdefcf7c2adf96738c762a95414eb7a4967ef6b88dcda14d58bfee0
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      netstandard.dll
    • Size 88KB
    • SHA256 6ae62e082dc494a2433984177f60ca4db5fae69b1f360a8b33754172b310b8c5
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10

MITRE ATT&CK Enterprise v15

Tasks