Malicious PDF — malware analysis report

Static analysis result for SHA-256 74f31c19a5b67757…

MALICIOUS

PDF

32.6 KB Created: 2021-06-21 19:41:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b2660df7f68d3d32e2d0b91e3f8af53a SHA-1: f1ff2a95eabbb2d18d1482c2b157ca22f6c1bbac SHA-256: 74f31c19a5b67757a148830aa8da37ed6176b84d2c43f11de0f0148330e3a0d9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites that are flagged as malicious redirectors, specifically advertising 'free generators' and 'game hacks' for popular titles like Roblox and Minecraft. The document body explicitly contains the URL http://netcdn.co/app/431946152/discord-free-robux-game-hack, which is identified as a malicious redirector. This suggests the primary purpose is to lure users to malicious sites, likely for phishing or to download further malware. No scripts were extracted, but the embedded URLs and the nature of the lures strongly indicate a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/discord-free-robux-game-hack In PDF document text
    • http://ordineingsa.it/images/free-items-roblox-catalog_GM431946152.pdfIn PDF document text
    • http://ordineingsa.it/images/free-robux-limiteds-comlu-com_GM431946152.pdfIn PDF document text
    • http://ordineingsa.it/images/real-robux_GM431946152.pdfIn PDF document text
    • http://ordineingsa.it/images/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • http://ordineingsa.it/images/how-to-hack-the-streets-roblox_GM431946152.pdfIn PDF document text
    • http://ordineingsa.it/images/paint-n-guess-roblox-hack_GM431946152.pdfIn PDF document text
    • http://ordineingsa.it/images/minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://ordineingsa.it/images/can-you-still-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://ordineingsa.it/images/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://ordineingsa.it/images/hacking-roblox-with-cheat-engine-2021_GM431946152.pdfIn PDF document text
    • http://ordineingsa.it/images/robux-earning-websites_GM431946152.pdfIn PDF document text
    • http://ordineingsa.it/images/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://ordineingsa.it/images/free-minecraft-realm-codes_GM479516143.pdfIn PDF document text
    • http://ordineingsa.it/images/how-to-sue-roblox_GM431946152.pdfIn PDF document text
    • http://ordineingsa.it/images/roblox-hacking-computer-games_GM431946152.pdfIn PDF document text
    • http://ordineingsa.it/images/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://ordineingsa.it/images/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://ordineingsa.it/images/how-to-get-free-pants-on-roblox-bc_GM431946152.pdfIn PDF document text
    • http://ordineingsa.it/images/coin-master-hack-unlimited-spins-apk-download_GM406889139.pdfIn PDF document text
    • http://ordineingsa.it/images/roblox-fly-hack_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_off00002922.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2922 22088 bytes
SHA-256: 174ad2125e7fde1d755db2f245e07313a9326ebc622c7a2d0505f8bd31bbe248
font_01_sfnt_off00005a18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A18 19176 bytes
SHA-256: 850f82da71d409c2d6cb0a54afc8b43b41c40d901b6a77d19196acbb9108703c

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