Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa6e7dcae967883e…

MALICIOUS

PDF

49.0 KB Created: 2021-05-17 11:00:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 52b775296df6015e58228acb62dab5a4 SHA-1: 06b85231d790932facb6975f982f77823451e5af SHA-256: fa6e7dcae967883ebec0c3b5547a89f0300a2ee085323917f8c6a23a5de00529
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple heuristics indicating it is a malicious redirector lure, specifically referencing "free generator / game hack" content. The primary URL identified, https://netcdn.xyz/app/406889139/coin-master-links-free-spins-game-hack, is flagged as malicious. Although no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to redirect users to potentially harmful websites, likely as part of a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier clean score 0.0145

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/coin-master-links-free-spins-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000034bd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34BD 26020 bytes
SHA-256: e46fbfd125c2086949be48688d38573bee413cbb5148d136ca46142d4d63a353
font_01_sfnt_off000071e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71E0 3192 bytes
SHA-256: abd768ad059d21f7ab7140442ef542ebbb5c2615000e77be1af39ceb4ffb8aac
font_02_sfnt_off00007d10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D10 7960 bytes
SHA-256: cf7ae5cf6bef3222f5a26bec705b492fed0278aec6b16ec101aeda46e0edd2b2
font_03_sfnt_off00009036.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9036 18056 bytes
SHA-256: 95118de0f1fa2d9d8d6d34d7ce9f6e9c56d43c25fce4d2a4bd556d275959b9e0
font_04_sfnt_off0000b181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB181 4272 bytes
SHA-256: fac9a06ceb5574feb8580c075df3ef69dfbd0efa4947186cfe90f11b68eaafb0

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