Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fa12948dd09d486…

MALICIOUS

PDF

36.8 KB Created: 2021-07-02 02:09:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 1d4539604392bb9c6cef7a7291a388ed SHA-1: e6ea042d71425b16bca7e8e2fbc89c4e7828b992 SHA-256: 5fa12948dd09d4869d682ef2c01a4783713928ee914b68a2cf42d5497f756ff8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/roblox-free-account-and-password-2021-with-robux-game-hack PDF link annotation
    • http://airrix.com/wp-content/uploads/fsqm-files/roblox-cheat-engine-bypass-june-2021_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/hack-how-to-get-the-old-events-roblox_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/script-whall-hack-roblox_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/hack-a-backdoor-into-a-roblox-game_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/roblox-hacks-for-bloxburg_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/free-stuff-in-roblox-catalog-2021_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/how-to-get-free-thumbynail-in-roblox-studio_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/roblox-roblosecurity-hack_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/elemental-battle-grounds-hack-roblox_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/free-everything-roblox_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/infinity-roblox-hack_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/roblox-free-admin-gear-codes_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/free-robux-on-ipad-only_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/roblox-how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/free-robux-without-scams_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/cheating-asimo-roblox_GM431946152.pdfIn PDF document text
    • http://airrix.com/wp-content/uploads/fsqm-files/how-to-hack-in-mm2-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003582.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3582 22448 bytes
SHA-256: 3ab9645ba8ed73f15547cf7cd0b189839dc19e6f3efac0ca30269d7fc515da5c
font_01_sfnt_off0000673d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x673D 20272 bytes
SHA-256: f2b7b3b3d9e2cc8a5e3f3a8518019760e502a8612ac8d075bf3163962e3086a4

Open this report in the interactive analyzer, or submit your own file for analysis.