Malicious PDF — malware analysis report

Static analysis result for SHA-256 aee228066539df9c…

MALICIOUS

PDF

41.6 KB Created: 2021-05-17 00:33:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 882135755d248a89029250fa9bcb2b82 SHA-1: 7832b893e5353fa38ff64ca2eb35c596794afb5d SHA-256: aee228066539df9c151397ff72ef923b7cec60ce5db6c8387fecb8127b62d24a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, specifically advertising 'free generator / game hack' lures. The ML classifier also strongly indicated maliciousness. While no scripts were directly extracted, the PDF structure and embedded links strongly suggest a phishing or social engineering attack aimed at redirecting users to potentially malicious sites for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/431946152/blox-fish-free-robux-game-hack In PDF document text
    • http://homequeen.de/images/coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://homequeen.de/images/hacker-coin-master_GM406889139.pdfIn PDF document text
    • http://homequeen.de/images/roblox-c9m_GM431946152.pdfIn PDF document text
    • http://homequeen.de/images/minecraft-pocket-apk_GM479516143.pdfIn PDF document text
    • http://homequeen.de/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://homequeen.de/images/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://homequeen.de/images/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • http://homequeen.de/images/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
    • http://homequeen.de/images/free-robux-obby-2021_GM431946152.pdfIn PDF document text
    • http://homequeen.de/images/hack-a-game_GM431946152.pdfIn PDF document text
    • http://homequeen.de/images/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • http://homequeen.de/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://homequeen.de/images/coin-master-free-spins-and-coins-for-today_GM406889139.pdfIn PDF document text
    • http://homequeen.de/images/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://homequeen.de/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://homequeen.de/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://homequeen.de/images/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://homequeen.de/images/hack-coin-master-no-verification_GM406889139.pdfIn PDF document text
    • http://homequeen.de/images/free-minecraft-games-for-kids_GM479516143.pdfIn PDF document text
    • http://homequeen.de/images/coin-master-free-spins-link-blogspot_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
stream_003_off0000482b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x482B 24516 bytes
SHA-256: c8ca2686c85610a745f2ea657ff06b5d925da1b6e4ed613bf2108a579e869a4c
font_01_sfnt_off00008035.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8035 18376 bytes
SHA-256: 833bfe47d36e77ffff594e1188eeee77c72f4d78f65cd820fb361f10e8c51563

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