Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9113663ceb50c25…

MALICIOUS

PDF

35.5 KB Created: 2021-06-23 05:31:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 02042f2435657a5541974b1106fe6626 SHA-1: 1ce1eb2d4ee51c0eeeb4ef8f9a2f163e63d6996f SHA-256: f9113663ceb50c25b48935d17bb8cf34f57d802a45f3fdbe57290017afee7b89
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/epic-hacks-for-roblox-game-hack PDF link annotation
    • http://montchanintt.fr/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/roblox-twisted-murderer-cheat-engine-2021_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/ear-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://montchanintt.fr/images/how-to-get-the-ninja-animation-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://montchanintt.fr/images/easy-robux_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/dbz-galaxy-burst-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/1m-stepford-county-railway-roblox-script-hacks_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/synapse-roblox-free_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/free-roblox-website_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/hack-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://montchanintt.fr/images/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • http://montchanintt.fr/images/coin-master-hack-xyz-2021_GM406889139.pdfIn PDF document text
    • http://montchanintt.fr/images/roblox-free-exploits_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/coin-master-free-coins-amp_GM406889139.pdfIn PDF document text
    • http://montchanintt.fr/images/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
    • http://montchanintt.fr/images/roblox-hack-scripts-pastebin_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_off000033c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33C0 22584 bytes
SHA-256: 60a58d73a3e74107187e937d1f09c0ef9a4aedcc0ed3e33aede065bb40595f18
font_01_sfnt_off000065a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65A1 19116 bytes
SHA-256: c33c2837143459ddd9dbb7a4482bb44b42ae40007fdc903c002d99dae5cb7e2f

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