Malicious PDF — malware analysis report

Static analysis result for SHA-256 04d8f4bf2cb85792…

MALICIOUS

PDF

43.8 KB Created: 2021-06-03 08:05:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8aad232051c38b003840f3c3d1fe11c3 SHA-1: b1fced79280ffa11e51090c3436966ac9518497f SHA-256: 04d8f4bf2cb8579269b45a4cb842fa681a50e505247c2198ddcb7eaee5201afa
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs pointing to sites offering game-related cheats and currency, strongly suggesting a phishing or scam attempt. The ML classifier also flagged this PDF as malicious. While no scripts were directly extracted, the presence of external URIs and the document's theme indicate a likely attempt to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/431946152/free-roblox-account-generator-game-hack In PDF document text
    • http://astdubai.co/userfiles/files/best-free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/how-to-download-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/free-robux-master_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/minecraft-windows-10-edition-hacks_GM479516143.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/roblox-robux_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/minecraft-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/coin-master-hack-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/free-spin-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/robux-free-co_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/cmaster-club-coin-master-hack-tool_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/ac-market-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/coin-master-hack-2021-no-survey_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/free-robux-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_off0000508f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x508F 24372 bytes
SHA-256: b16e6177eab5f496bee4867175d9aa2ebba4e67cdec546d1f6a79c74478d7954
font_01_sfnt_off000087ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87EF 18420 bytes
SHA-256: 7ac5e27b34c4b1ad8a7b5cb593be6d3cc1f904c1acada5288a93079ea3be41d7

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