Malicious PDF — malware analysis report

Static analysis result for SHA-256 964f06b89c00545c…

MALICIOUS

PDF

43.9 KB Created: 2021-06-03 06:18:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 010e61314e43aea97cf83da5bd5803c4 SHA-1: cd325e1e07ea454598e17362247d0f00fade58dc SHA-256: 964f06b89c00545c689ecb819e0a37d69611da283e4c41a6a1133ae9bc158404
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and free generators, directing users to a malicious URL. This URL is flagged as a known malicious redirector, indicating an attempt to lead the user to a malicious site or download. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

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/roblox-troll-outfits-free-game-hack In PDF document text
    • http://digilib.uim.ac.id/repository/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/sites-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/hack-coin-master-using-pc_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/download-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/how-to-change-your-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/pokemon-go-free-coins_GM1094591345.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/how-you-get-robux_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/are-pubg-uc-cheap_GM1330123889.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/try-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-hacks-for-spins_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_004_off00004fac.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FAC 25952 bytes
SHA-256: c56d0b22db0872dc5d0c689e4c936a5d024df7998aff949ecde87404ae520f7c
font_01_sfnt_off00008910.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8910 18312 bytes
SHA-256: d7a6054ad6450820976bdf97a593247089bbc5ee73a255b9938ff1244ab0e13d

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