Malicious PDF — malware analysis report

Static analysis result for SHA-256 fced38513bfb534f…

MALICIOUS

PDF

33.5 KB Created: 2021-06-29 06:12:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ea09dd2b6769e918814b50ef573f557a SHA-1: eddcea213b01732d1b4296542e6b8c0eedc58cae SHA-256: fced38513bfb534ff7e24fca6bad147acf45c4fa04fc4f7ec3dabab86d029c7f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains embedded links and document body text that explicitly promote 'game hacks' and 'free generators' for popular games like Roblox. These links direct to a known malicious redirector infrastructure, indicating a phishing or scam attempt. The ML classifier also strongly flagged this PDF as malicious.

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-rape-hack-game-hack In PDF document text
    • https://opac.umrah.ac.id/repository/descargar-roblox-hackeado-android-1_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-hack-2021-lenovo_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/easiest-way-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-diamonds-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-free-clothes-on-roblox-2021-ios_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-hack-into-any-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-pe_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/rbx-free_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-roblox-hair-girl_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-free-robux-2021-feb-eazy_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-jailbreak-noclip-hack-download-in-description-patched_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/play-roblox-for-free-on-google_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/pubg-uc-id_GM1330123889.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-play-minecraft-online-for-free_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-cheat-engine-hacks-december-2021_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/arsenal-roblox-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/cheat-roblox-cb-r-download_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_off00002e2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E2A 21744 bytes
SHA-256: 20c7a16bddd69482de5c23a9c837e9c10e87a1f9c6100c25b8f5daf0a40502de
font_01_sfnt_off00005e2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E2C 18832 bytes
SHA-256: 3ac3cfabc938180400d0abf1f56cc3fab268d3e1a7375c8f9738c83b811e0b8b

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