Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dcf4a423e51f6f9…

MALICIOUS

PDF

35.6 KB Created: 2021-05-23 22:34:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8a0ab745a1689403a477357b8a027bbb SHA-1: e40295b88c99251d9d233ce3d7c188e67b94dcf6 SHA-256: 5dcf4a423e51f6f947114dd895eeb177d314fbc9373ecc8b830861fdcb14d5be
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with promises of free generators or game hacks. The embedded URLs and the document body text strongly suggest a phishing or scam attempt designed to redirect users to potentially harmful websites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9508

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/835599320/free-tiktok-comments-game-hack In PDF document text
    • http://loriginedupain.org/images/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/google-how-do-you-get-free-robux_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
stream_002_off00003046.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3046 25876 bytes
SHA-256: 64a34a5597dca593d9ace6295a9554c9f27900a3c73c4516e967c2e03136db18
font_01_sfnt_off00006b8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B8C 17716 bytes
SHA-256: be925199a27c2d273bbfb828ef38ce2fcf452edcc9d534dc6164d07d4183a457

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