Malicious PDF — malware analysis report

Static analysis result for SHA-256 fde5964b8b924941…

MALICIOUS

PDF

34.4 KB Created: 2021-06-25 22:50:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7e74d8f943808a79d5340679f860bbf7 SHA-1: 8d0ed1902a96726424fd176b4f11f356cc069fdf SHA-256: fde5964b8b924941864d9dcae94811db00cc99c0909506025fb9bf3cf9fd9681
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link disguised as a 'free generator / game hack' lure, which is a common tactic for phishing or malware distribution. This link redirects to known malicious infrastructure, indicating a high likelihood of user compromise. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/booga-booga-roblox-hacks-free-download-2021-game-hack In PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/free-robux-no-human-verification-survey-or-download_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/robux-free-roblox-hack_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/roblox-noob-outfit-for-free_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/descargar-roblox-hackeado-apk_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/roblox-hacked-client-esp_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/free-likes-for-tiktok_GM835599320.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/how-to-get-free-robux-on-chromebook-2021_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/roblox-rc7-cracked-free-download_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/roblox-the-streets-no-clip-hack_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/hack-for-pet-simulator-roblox_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/roblox-free-items-instagram_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/how-to-have-a-jetpack-on-my-character-free-roblox_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/free-roblox-estudios_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/roblox-taxi-simulator-give-all-cars-hack_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/noclip-hack-roblox-prison-life_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_off00003180.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3180 21128 bytes
SHA-256: d47eaa515bfdf077ede50ece2919458f203826f4cb3cd6896fd10ee51678681b
font_01_sfnt_off00005f4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F4F 19728 bytes
SHA-256: ae5c1206c49f9991c9fbade4c4b862c312b3e9be54d4466802582e57e995927b

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