Malicious PDF — malware analysis report

Static analysis result for SHA-256 97d3c39cb096841e…

MALICIOUS

PDF

34.4 KB Created: 2021-06-29 01:30:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c85593eed56b58a7d03aee0631cd3fea SHA-1: a2b0d436318acf16452314d3ef74e6ffc921bffa SHA-256: 97d3c39cb096841e2a551f881f1b3b74839c756c401176a18252d6e34215dea0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one that redirects to known malicious infrastructure. The document body and embedded links promote 'free Robux' or game hacks, a common lure for phishing or malware distribution. The primary malicious link is http://netcdn.co/app/431946152/free-robux-in-real-life-game-hack, which is flagged as a malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/free-robux-in-real-life-game-hack In PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/roblox-engine-hack_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/axon-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/w-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/hack-roblox-vermillion_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/working-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/free-roblox-codes-2021_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/how-to-hack-stats-in-roblox-games_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/roblox-hockey-mask-free_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/free-roblox-accounts-2021-march_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/hack-de-roblox-robux-gratis_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/hack-to-get-20210-robux-2021_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/roblox-catalog-slendytubby-clothes-free_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/a-free-roblox-account_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/robloxs-got-talent-painting-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30F8 22148 bytes
SHA-256: 92903097db06fa19b24170a3799ea58824e5893df4854ef98761d0ccede3a110
font_01_sfnt_off00006202.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6202 18912 bytes
SHA-256: d0aa08fcf508c21923966eae698e4d9ba689a234623284afc7f06af66e347f91

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