Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5d5b7b801dc11c7…

MALICIOUS

PDF

35.2 KB Created: 2021-07-08 01:35:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e58ae90e85fe021dc5e8f32b05c5ff10 SHA-1: 09acbf6859677b706c1c005facdc29f0c9da0fed SHA-256: d5d5b7b801dc11c7abbc4db92ef732decb31a20c1122eb1c7621c7dde3a4b36f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links and text that promote 'free generator / game hack' lures, specifically directing users to a known malicious redirector. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple links to potentially malicious infrastructure indicates a phishing or scam attempt. No scripts were extracted, but the document's structure and content point to a social engineering attack.

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/406889139/free-coins-2021-coin-master-link-game-hack In PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/coin-master-free-gold_GM406889139.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/roblox-the-pizzeria-rp-remastered-give-all-coins-hack-2021_GM431946152.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/minecraft-free-minecraft_GM479516143.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/coin-master-free-spins-deutsch-download-ios-link_GM406889139.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/military-outfit-roblox-free-download_GM431946152.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/haktuts-2021-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/how-to-get-robux-easy_GM431946152.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/roblox-bubblegum-simulator-steal-hack_GM431946152.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/minecraft-windows-10-free-trial_GM479516143.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/mod-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/coin-master-tiradas-gratis_GM406889139.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/how-to-cheat-on-roblox-got-talent_GM431946152.pdfIn PDF document text
    • https://elearning.minkotablitar.sch.id/__statics/gudangsoal/files/game-hunters-coin-master_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
font_00_sfnt_off00003378.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3378 22656 bytes
SHA-256: ea72f5d25f0b6a70ac35f9e9384c70a0e6db7d0895a254b91c6cfe54ebbd2865
font_01_sfnt_off00006629.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6629 18568 bytes
SHA-256: 5e861a0e572dbf32673aad63aa93fdae762a4856b6734d785bb47208e55cd156

Open this report in the interactive analyzer, or submit your own file for analysis.