Malicious PDF — malware analysis report

Static analysis result for SHA-256 edf98f79576a8828…

MALICIOUS

PDF

43.1 KB Created: 2021-05-15 06:32:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 021f727c793e8ea8b7de6dbdc2f9d50c SHA-1: bc4eb7efde6311390d5f837d99a638106d67f2c2 SHA-256: edf98f79576a88281bc28aaaa0fdcdf20afb20557f1e17d82f3afe3baf124930
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to known malicious infrastructure, specifically promoting 'free generator / game hack' lures for popular games. The document body and embedded links strongly suggest a phishing or scam attempt designed to trick users into visiting malicious sites. No scripts were extracted, but the presence of malicious links and the lure indicate a high likelihood of a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/406889139/coin-master-free-spins-no-human-verification-game-hack In PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/free-minecraft-domain_GM479516143.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/coin-master-free-spins-generator_GM406889139.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/get-free-spins-on-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/real-robux-codes_GM431946152.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/free-robux-clothes_GM431946152.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/coin-master-game-free-play-online_GM406889139.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/coin-master-free-spins-cheat-codes_GM406889139.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/coin-master-free-gold-cards-link-2021ee-spins_GM406889139.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/coin-master-attack-hack_GM406889139.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/reddit-coin-master-hack_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_003_off00004c9e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C9E 25308 bytes
SHA-256: 90ba18dee23106852068001441f466f914b1a71898488e99c4a6f9f0c1f64f28
font_01_sfnt_off00008607.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8607 18420 bytes
SHA-256: bda9d64311803d8ca1e60170c3ec5fa1333a71d10f10bc88962b6478ba2902e6

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