Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd09d700e615e2c8…

MALICIOUS

PDF

40.4 KB Created: 2021-04-27 00:57:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cb17c41f66b970b7575e16e98e3fd9fb SHA-1: 64c2e96f7ccf7425cb77e73aa0b7cc2787976668 SHA-256: dd09d700e615e2c861bcbfdc3820b6758ae42671ef19a17432b98fb8327c5c14
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and game hack lures, indicating an attempt to trick users into downloading malware. The document body and embedded links suggest a lure related to game cheats or generators, a common social engineering tactic. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest malicious redirection and potential payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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/how-to-get-free-weapons-electric-state-darkrp-roblox-game-hack In PDF document text
    • http://repository.unla.ac.id/repository/free-skeptic-roblox.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-robux-generator-tool-pastebin.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-robux-generator-no-survey-or-download-2021.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/paste-bin-robux-hack.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/roblox-pinewood-hack-script.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/roblox-points-hack.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-parking-in-back-id-roblox.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/conseguir-robux-gratis-hack.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-printable-coloring-pages-of-roblox.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/how-to-create-a-shirt-in-roblox-for-free.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_off000040c2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x40C2 25440 bytes
SHA-256: fdd12d342f4ad8c6b1b2096fcb82d6b5c0e51ad72e1fd05f494990d79bc7b1a3
font_01_sfnt_off00007935.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7935 19276 bytes
SHA-256: 8ed8bbc0b57d32fbaa096b5a0fddfe29ced72f198933d7c6cbdf2d3c75cc6d09

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