Malicious PDF — malware analysis report

Static analysis result for SHA-256 566b0daa840b733b…

MALICIOUS

PDF

35.5 KB Created: 2021-05-13 21:31:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9545131965e157069330c2de018aeca7 SHA-1: b5078bcd4d9f6206dac06a27778868127b13523d SHA-256: 566b0daa840b733bbc261bc9b4d0c409e94755b34d93bc781544b9c51b387210
130 Risk Score

Malware Insights

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

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically a site offering a 'game hack generator'. The document body text and heuristic firings indicate a lure to trick users into clicking these links, likely to download a secondary payload or lead them to a phishing site. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier clean score 0.0306

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/sb-game-hacker-coin-master-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000030ab.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30AB 25296 bytes
SHA-256: 9153ab4e36fb507f7916b38095c5b066de7a3fa4f70d86926790683d96b6ddfe
font_01_sfnt_off000069d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69D3 18136 bytes
SHA-256: c585062877f4224fcb1f1dfb3d6ea7b2a259284f2f9e680e0c2fd59b45efc3d5

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