Malicious PDF — malware analysis report

Static analysis result for SHA-256 43b2c3ebb94ab232…

MALICIOUS

PDF

45.0 KB Created: 2021-06-08 13:31:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 99680740ae1d09ab85ff1c3c37615823 SHA-1: e420f4a51d0cb68eb2021e4218425bc772e687ff SHA-256: 43b2c3ebb94ab2325ddc573b908e32e575241f21b53e19ef66e2d2f08e49806b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as 'free game hacks' or 'robux generators'. The primary lure is to trick users into visiting these sites, which likely host further malicious content or phishing pages. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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.tw/app/431946152/how-to-get-100-robux-for-free-game-hack In PDF document text
    • https://www.manmed.info:443/images/hack-version-coin-master-apk_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/appsmob-info-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/minecraft-free-online-games_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-roblox-accounts-with-builders-club_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/pokemon-go-free-wallhack_GM1094591345.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-robux-today_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/roblox-script-hack_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/www-coinmaster-com_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/best-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/robux-game-com_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-download-coin-master_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/tiktok-free-unblocked_GM835599320.pdfIn PDF document text
    • https://www.manmed.info:443/images/how-to-hack-coin-master-apple_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-minecraft-account-and-password_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-100-robux_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_004_off00005193.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5193 25568 bytes
SHA-256: b962266d3f8f55cbc866ba2ad7bd09bccbb50bf7ecfde1f4480d9ea598061305
font_01_sfnt_off00008c2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C2A 18560 bytes
SHA-256: ebe7febd7c9c87dba90e20cfb7f210acfd9bc8f8383e28ef55b41a5f3c0fccc9

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