Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e28ae6c0b044e65…

MALICIOUS

PDF

35.3 KB Created: 2021-06-30 02:00:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b74c727461487b058fad42a864bf8fca SHA-1: a5b46dcc7039f5e87f956fd93c370d72b177e7cd SHA-256: 9e28ae6c0b044e65e393a30684e6c8e9aa0382098b7b6aead7295c1f04dcbf50
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains links that redirect to malicious infrastructure, specifically promoting game hacks and free in-game currency lures. The primary link identified is http://netcdn.co/app/431946152/roblox-cheat-engine-hacks-2021-game-hack. This indicates a social engineering tactic to trick users into visiting potentially harmful sites. No scripts were extracted, but the PDF structure and embedded URLs strongly suggest a phishing or scam attempt.

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/roblox-cheat-engine-hacks-2021-game-hack In PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/free-robux-net_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/minecraft-pe-free-download-ios_GM479516143.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/hack-notoriety-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/play-roblox-free-online_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/how-do-you-get-roebucks_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/how-to-hack-beach-simulator-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/how-to-permanently-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/download-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/hacks-for-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/free-robux-generator-com-roblox-hack_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_off00003123.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3123 22580 bytes
SHA-256: 03a8841925d63acb754c3f63505311a7a62a9c09cda5d00ae816884e4009abb5
font_01_sfnt_off0000638b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x638B 19448 bytes
SHA-256: f4dd6e63b9d80251adee0777cdf474fdc4719c5884c0422b522281541ab94f9f

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