Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bb287f8bf2e732c…

MALICIOUS

PDF

42.4 KB Created: 2021-05-18 00:12:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 51b707cab85456e92f661838fffab99a SHA-1: a7e5e7c89be37f7b1b230e5b4562ad9aa7658c63 SHA-256: 5bb287f8bf2e732c9e121ead42cbc150e246b83f61e7db99c104a0ef2540e94e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators'. The primary lure URL is https://netcdn.xyz/app/479516143/real-minecraft-for-free-game-hack, which is associated with known malicious redirectors. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering tactic to drive users to potentially malicious content or downloads.

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/479516143/real-minecraft-for-free-game-hack In PDF document text
    • http://ines.co.rs/images/hackear-coin-master-android_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • http://ines.co.rs/images/what-is-coin-master-app_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/roblox-adopt-me-hacks-2021_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/roblox-hax_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/pig-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/coin-master-free-spin-whatsapp-group-link_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/minecraft-free-reddit_GM479516143.pdfIn PDF document text
    • http://ines.co.rs/images/how-to-hack-someones-roblox-account-2021_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
stream_003_off0000495c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x495C 26088 bytes
SHA-256: 7dbca3e0c272ab76ee99efd1d06602d08d031216249bf714704afcb897cdb555
font_01_sfnt_off0000852d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x852D 17784 bytes
SHA-256: d9b0d0c4c4ee4a540b7fb0061982a790ffe87580883f4fb909ed1eb0697febb4

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