Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8e1b54bdffcecab…

MALICIOUS

PDF

34.6 KB Created: 2021-07-01 09:41:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 30b1e8f766819b2c30f59a65cf24f861 SHA-1: 69e525ecb55cbdadfbd41d3839c90a0c61b58393 SHA-256: e8e1b54bdffcecab5b96f246e355ff15c89e4846df180081ea8e07ffff1d7381
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting a 'game hack' lure. The document body and heuristics indicate a clear intent to trick users into visiting these malicious URLs, likely as part of a phishing or malware distribution scheme. No scripts were extracted, but the embedded URLs and PDF-specific heuristics strongly suggest 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/murder-mysstery-hack-roblox-game-hack In PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-roblox-accounts-with-obc_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/coin-master-free-spins-hack-link_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/hacking-roblox-with-brutus_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/roblox-hack-robux-download-apk_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/roblox-hack-2021-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-roblox-redeem-cards-nov_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-roblox-girl-faces_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/site-17-hack-gui-roblox_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/roblox-free-robux-wivout-paying_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-candy-decal-roblox_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/hack-roblox-pc-download_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/robux-download_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/roblox-app-free-download-for-android_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/how-to-hack-someone-in-roblox-on-ipad_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-roblox-itrems_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/descargar-hack-de-robux-para-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/roblox-the-quarry-hack-cheat-engine_GM431946152.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_off00002eb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB8 22432 bytes
SHA-256: 7e4c47f11834c9bd5718c15b7ecddb21984d2ff8683acd08bf922c9e600ed916
font_01_sfnt_off000060fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60FD 19448 bytes
SHA-256: 04ae57263451eed7229bb7248dd57672c11c73f693d6fcff660b6cbbf417109b

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