Malicious PDF — malware analysis report

Static analysis result for SHA-256 e82f84f256b23a7f…

MALICIOUS

PDF

34.6 KB Created: 2021-07-04 01:32:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0368bc4ba91bbf0c8fd0f54cf456a134 SHA-1: 02c3264e98633d39c1aed1cc0122011da5f7e9b8 SHA-256: e82f84f256b23a7f42731ba13304a2caea7412376d0cb62e36537e0993b26f88
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one pointing to a known malicious redirector infrastructure. The document body and heuristics indicate a lure for 'free generators' or 'game hacks', suggesting an attempt to trick users into downloading malware. No scripts were extracted, but the presence of embedded URLs and the nature of the lure strongly suggest a malicious intent to redirect users to harmful content.

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.tw/app/431946152/how-do-we-get-free-robux-game-hack In PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/how-to-get-5-robux-for-free_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/blockland-for-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/how-to-cheat-in-roblox-mad-paintball_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/new-roblox-swordburst-2-hack_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/coin-master-pet-food-free_GM406889139.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/tiktok-for-free-movies_GM835599320.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/pokemon-go-free-promo-codes-2021_GM1094591345.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/hack-for-project-sepra-roblox_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/how-to-get-free-robux-using-free-codes_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/minecraft-skins-free-girl_GM479516143.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/roblox-shinobi-life-level-hack_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/how-to-make-a-group-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/ballas-t-shirt-roblox-free_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/minecraft-sign-up-free_GM479516143.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/how-to-get-free-robux-games_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_off00003234.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3234 21524 bytes
SHA-256: d04d84524a951d30de904c57ad28cc5c5b963193437db68e5777eee497992dca
font_01_sfnt_off00006160.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6160 19352 bytes
SHA-256: 77d4dc97c307d7c63aabcd07bfab883361bf99189f8f493507813bf950ab756f

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