Malicious PDF — malware analysis report

Static analysis result for SHA-256 e711cec0cf2760cf…

MALICIOUS

PDF

40.3 KB Created: 2021-04-25 21:52:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 69775c00c5f8cf1d636e44e0eca1d8da SHA-1: 165bf5d9dfc3eaa278df37d0260d0c5b6684f026 SHA-256: e711cec0cf2760cf7e999d44d669ff99463554f776bdf50986ac9891e77fe716
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically advertising 'Roblox Hacks And Cheats'. The presence of these links and the ML classifier flagging indicate a malicious intent to redirect users to potentially harmful content. While no scripts were directly extracted, the PDF structure itself facilitates the redirection, aligning with a phishing or scam lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9443

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 https://netcdn.xyz/app/431946152/roblox-hacks-and-cheats-game-hack In PDF document text
    • http://repository.unla.ac.id/repository/hacking-into-a-roblox-account2021.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/roblox-pinewood-hack-script.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/best-ways-to-make-robux-in-roblox-for-free.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/roblox-prison-life-cheat-engine-hack.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-fast-money-robux.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-robux-no-human-verification-no-survey-no-offer.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
stream_003_off00003e3e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3E3E 26324 bytes
SHA-256: 13038b95192e626a5bf1592d48894469f91086b6fa73d2580b0e31b8460b0cb6
font_01_sfnt_off00007b10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B10 18624 bytes
SHA-256: fd38699d39b76a4f9eae772e1d62c447b40f492bf7651a7365d5b223074a20b1

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