Malicious PDF — malware analysis report

Static analysis result for SHA-256 69c202d47a87a7ac…

MALICIOUS

PDF

40.2 KB Created: 2021-05-10 13:56:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bb8eed3177b5958d4308b01633a0b1f8 SHA-1: d40257bd86da5626f684987a36e9c4303f8be8c7 SHA-256: 69c202d47a87a7aca6eb04cdae97aaf17cb4c0c6339327b7f55f5642dabc1bbe
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, masquerading as game hacks or generators. The primary lure URL is https://netcdn.xyz/app/406889139/free-spins-for-coin-master-that-work-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering attack aimed at tricking users into visiting malicious sites, likely for further payload delivery or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9945

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/406889139/free-spins-for-coin-master-that-work-game-hack In PDF document text
    • http://mountain.mn/uploads/files/is-coin-master-hacks-safe_GM406889139.pdfIn PDF document text
    • http://mountain.mn/uploads/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://mountain.mn/uploads/files/archery-master-3d-coins-hack_GM406889139.pdfIn PDF document text
    • http://mountain.mn/uploads/files/minecraft-complete-handbook_GM479516143.pdfIn PDF document text
    • http://mountain.mn/uploads/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://mountain.mn/uploads/files/coin-master-facebook-hack_GM406889139.pdfIn PDF document text
    • http://mountain.mn/uploads/files/coin-master-free-link-app_GM406889139.pdfIn PDF document text
    • http://mountain.mn/uploads/files/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://mountain.mn/uploads/files/roblox-its-free_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_003_off00003f22.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3F22 25952 bytes
SHA-256: e2045db240aaa01f50f2f3033465817082d4a204ea458c75ecf29d90e2c16fc4
font_01_sfnt_off00007b3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B3D 18420 bytes
SHA-256: 38941df2f255dbbeb7e8f4cd39caefbe857da85da1c5ae5f328b1c0cb4bd120e

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