Malicious PDF — malware analysis report

Static analysis result for SHA-256 59b64d5973d94986…

MALICIOUS

PDF

35.9 KB Created: 2021-05-17 18:04:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c041220febf9e6949dd992e253601e83 SHA-1: 4d57c1e95706b7191d6acaee27647134b11181fb SHA-256: 59b64d5973d94986b74e257fbafe36f9c4274e2446394dde66b47c5c3b405f2c
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains multiple links pointing to known malicious redirector infrastructure, specifically advertising a 'free generator' for a popular game. The document body also contains a call-to-action phrase, 'CLICK HERE TO ACCESS COIN MASTER GENERATOR', further reinforcing the lure. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to redirect the user to a malicious site, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier clean score 0.0265

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-on-coin-master-link-game-hack In 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_off000031e1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31E1 25372 bytes
SHA-256: 353c22342a8ca00a616ce904439884a51cab813edd7ffb83893f3cd227864cd2
font_01_sfnt_off00006bb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BB4 18056 bytes
SHA-256: 892ebf3b86ae534fd3f474e2c239da2a9bb4dc91f8225dc09222a78aadec1336

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