Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6ce545fc5dc18be…

MALICIOUS

PDF

39.5 KB Created: 2021-05-17 04:00:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e3464a8dc3a1348aba8c5332b31f889a SHA-1: 77976950d29690342e0888fcfd5ad6606b13cd8b SHA-256: b6ce545fc5dc18bececd3caa33022980eecf83931d6d79ab421855f7f531accc
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack lure, linking to known malicious redirector infrastructure. The document body and metadata also reference the 'Coin Master Money Hack' and the malicious URL. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect users to a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

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-money-hack-game-hack In 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
stream_003_off00003560.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3560 25492 bytes
SHA-256: 77505db4db8861aaed6b51e564674f771717b10f43de08c6c2f6ba4eb965c129
font_01_sfnt_off00006f42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F42 17896 bytes
SHA-256: a6b353828501ff7b1093da1228b83900f1f5af44564cde8da81e8d6550ac8b57
font_02_sfnt_off00009039.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9039 3264 bytes
SHA-256: e32c06502c11b52acb5e814091c5fdbffd1e2a904ac7a9cfb8b5b180bd139088

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