Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd5038ead3bf209c…

MALICIOUS

PDF

47.0 KB Created: 2021-06-11 04:06:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 63000a188d0233d48c67e0ed77b022b2 SHA-1: 7ec310d863cb8054d6f6252a82c70af185481d56 SHA-256: fd5038ead3bf209cb653f447aca877665d2c58e34867775d3fa3c747a435ebfd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically advertising game cheats and free items. The primary redirector URL is https://netcdn.tw/app/431946152/roblox-swordburst-online-cheats-game-hack. This indicates a phishing or scam attempt designed to lure users to potentially harmful sites. No scripts were extracted, but the document's structure and embedded links strongly suggest a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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.tw/app/431946152/roblox-swordburst-online-cheats-game-hack In PDF document text
    • https://www.belgium-archery.be/images/free-roblox-toy-codes_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/code-robux-free-2021_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/pokemon-go-free-083_GM1094591345.pdfIn PDF document text
    • https://www.belgium-archery.be/images/free-roblox-card_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/free-robux-real_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/minecraft-app-store-free_GM479516143.pdfIn PDF document text
    • https://www.belgium-archery.be/images/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • https://www.belgium-archery.be/images/rbx-place-free-robux_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/free-robux-no-wait-2021_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/coin-master-32-mod-hack-unlimited_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/how-to-get-free-robux-with-fake-credit-card_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/how-to-get-free-likes-on-tiktok-for-free_GM835599320.pdfIn PDF document text
    • https://www.belgium-archery.be/images/free-tiktok-followers_GM835599320.pdfIn PDF document text
    • https://www.belgium-archery.be/images/free-tiktok-fans-no-human-verification-or-downloading-apps_GM835599320.pdfIn PDF document text
    • https://www.belgium-archery.be/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/minecraft-free-android_GM479516143.pdfIn PDF document text
    • https://www.belgium-archery.be/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/roblox-free-pin-generattor-no-survey_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/free-star-codes-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004cc0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CC0 27024 bytes
SHA-256: bef9451e04c619dea9788b238eaad3a613bce58153f66b8b0189d671a0850cc6
font_01_sfnt_off000088ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88EA 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off000092d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92D5 18880 bytes
SHA-256: e57ab2511387d3273a218620e94b36219e4756e0fb31e6ae8642ed6b7d723d76

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