Malicious PDF — malware analysis report

Static analysis result for SHA-256 7930b598829ea569…

MALICIOUS

PDF

34.9 KB Created: 2021-06-28 17:38:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a6917495afc7edd156ad804706e1821e SHA-1: 60ccf561353db1e6468d99f42e9bf0a8163e098a SHA-256: 7930b598829ea569520d209b7bd0cf8246a717adead38e0a9bf7b1dfceb29003
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/free-robux-no-humen-varucashe-game-hack PDF link annotation
    • http://www.mostraining.co.za/images/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/how-to-become-a-speed-hacker-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/hacks-para-roblox-descargar-gratis_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/how-to-get-a-free-raid-pass_GM1094591345.pdfIn PDF document text
    • http://www.mostraining.co.za/images/2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/how-to-hack-coin-master-with-root_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/mod-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/roblox-cheat-engine-high-jump_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/free-robux-link_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/freespinandcoinblogspot-com-2021-11-coinmasterfreespins_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/free-meme-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/coin-master-free-spins-link-fb_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/roblox-money-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/how-to-change-your-name-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/fly-hacks-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/free-diamonds-coin-master_GM406889139.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_off000030e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30E0 22568 bytes
SHA-256: d4ecc2b2bc9cf2e73a108966412f0ecd7fe986c7dbfaf21561d4314846faf2ab
font_01_sfnt_off000062e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E7 19276 bytes
SHA-256: 61b52c6890a71de9e623e222172d3dd80e37f6f5c9ec3299807d23d099e16090

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