Malicious PDF — malware analysis report

Static analysis result for SHA-256 78be4dbe83409bfe…

MALICIOUS

PDF

39.0 KB Created: 2021-05-10 16:30:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ea510a33019d5ce59a0a6ea1fa8a96ec SHA-1: 846a2a2b29f70466d6ab638146272a52376a47a0 SHA-256: 78be4dbe83409bfe7810b8e78c9ccc28ef207252742221d40afdd7f23f331920
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that are identified as malicious redirectors, specifically luring users with the promise of a 'game hack' or 'generator'. The document body contains text and a button-like phrase, 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', encouraging interaction with these malicious links. The primary IOC is the redirector URL, which is known to host malicious content.

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/479516143/what-is-a-minecraft-client-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000348d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x348D 24924 bytes
SHA-256: 98b32a9882e46569d95b147e2e5740d7894f3013ba8bd0ae1f6d0561c024fe07
font_01_sfnt_off00006d85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D85 3128 bytes
SHA-256: 801f6fa60decd1add2f223f91580103c35e150c924465f86a7a572b3e00674f9
font_02_sfnt_off000077c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77C5 18008 bytes
SHA-256: f402f21c661d1e01b215e02d2fc5d7c867c0257932a901a78bdda083b1da0465

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