Malicious PDF — malware analysis report

Static analysis result for SHA-256 5964e8d49726b570…

MALICIOUS

PDF

42.6 KB Created: 2021-05-15 04:36:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 8ddc7deb2da4459af16ec009d0c5c021 SHA-1: 716b7c0afe48e8b33a88e1728651c546a7aa940c SHA-256: 5964e8d49726b5702c5733341a7a244045645257244c137fceeb5f4209744aca
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 0.9971

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 https://netcdn.xyz/app/431946152/free-roblox-accounts-2021-with-robux-game-hack PDF link annotation
    • http://www.mostraining.co.za/images/freespinandcoinblogspot-com-2021-11-coinmasterfreespins_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/coin-master-hack-spin_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/coin-master-free-spins-link-2021-hack_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/free-spins-on-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/coin-master-time-speed-hack_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/minecraft-story-mode-free-download_GM479516143.pdfIn PDF document text
    • http://www.mostraining.co.za/images/coin-master-60-spins_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/coin-master-link-app_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
    • http://www.mostraining.co.za/images/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/download-hack-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/hackear-coin-master-sin-verificacion_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/free-robux-generator-no-human-verification-or-survey-2021_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
stream_003_off00004985.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4985 24552 bytes
SHA-256: 103a7915a6e62878303f1a7153d142304393d4402c13cdfb8cb18b086bf7303d
font_01_sfnt_off000081aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81AA 19076 bytes
SHA-256: a3899638bf51e335cbc40673d1471e0832e9a39f88469ef4ed0809ba61e6f618