Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9a08b95cbf95fcb…

MALICIOUS

PDF

39.2 KB Created: 2021-05-23 04:06:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 985cf8ccbe8829732692462491c1a5f2 SHA-1: 686e0eb371f95cbbd09f406407fc911a97452bec SHA-256: d9a08b95cbf95fcbe6ff68d88f10e541ab502cab9b4135336c5fa4783e04a094
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, specifically advertising 'Roblox Hack Client' and 'free generator' lures. The ML classifier also flagged the document as malicious. While no scripts were directly extracted, the PDF structure and embedded links strongly suggest an attempt to redirect users to a malicious site for potential malware download or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8068

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-hack-client-game-hack In PDF document text
    • http://kim-kinder-im-mittelpunkt.de/images/gameoffice-net-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://kim-kinder-im-mittelpunkt.de/images/spin-rewards-coin-master_GM406889139.pdfIn PDF document text
    • http://kim-kinder-im-mittelpunkt.de/images/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
    • http://kim-kinder-im-mittelpunkt.de/images/best-way-to-get-robux_GM431946152.pdfIn PDF document text
    • http://kim-kinder-im-mittelpunkt.de/images/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000320b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x320B 26036 bytes
SHA-256: a704b18898411a87ec69f9f6e82e659f9c5b156825467f5481c9f5de6fa4b7ed
font_01_sfnt_off00006d2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D2C 2896 bytes
SHA-256: 0f10adbf105d053971010bc1f17c4dd55814d599674c84f75a6eb4cb46a9c89b
font_02_sfnt_off00007723.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7723 18408 bytes
SHA-256: 550f62bb1f49814ef42b1b735b63b4edf215944f9d7482118736a3d91d594bfc

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