Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8c6e71ef5c67001…

MALICIOUS

PDF

35.7 KB Created: 2021-05-19 05:08:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8fcd180dcb9e3945d4fa82a92dcd8ea0 SHA-1: 980891403104db49dd4a86fdc2b8180887c43c16 SHA-256: e8c6e71ef5c67001aa60bf7ca5db1ab75539ec1b6ec977a1164173d0af973aa6
130 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a website offering 'free Robux' or 'game hacks', a common lure for malicious content. The heuristic firings indicate the PDF is designed to redirect users to known malicious infrastructure. While no scripts were explicitly extracted, the nature of the lure suggests an attempt to download and execute a secondary payload.

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/431946152/oprewards-free-robux-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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00002fde.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FDE 25012 bytes
SHA-256: 50fa1be2ad8a4090a7aa68b25c5fa6a756445c8a839647a930c637ac13f20533
font_01_sfnt_off0000688d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x688D 18756 bytes
SHA-256: ea6a04d6c65882c9dd78ee7ca96c70e45062fdc6b69d68e2fcdc099d3abb6428

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