Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3926377afc6d761…

MALICIOUS

PDF

36.0 KB Created: 2021-05-11 00:27:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1803bb7c4fe55f63071bb0a2d548fa78 SHA-1: 0c0d88cf6fd16051bcf3a0e797874731e37e5afb SHA-256: d3926377afc6d761ec58d61ab2b19d7f80622ad214f8883a5c0e1309f7e1882d
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector infrastructure, masquerading as a "free generator / game hack". The document body and embedded artifacts suggest a lure to a website that likely hosts further malicious content or exploits. No scripts were extracted from this sample, limiting the analysis of its execution flow.

Machine Learning

  • Nyx PDF Classifier clean score 0.0282

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/how-do-you-get-free-roebucks-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_off00003198.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3198 24616 bytes
SHA-256: e87059363dc63b3cc3dd1ae6bc4aeaea9974ad6497ae24810070724abbe8a0ad
font_01_sfnt_off00006a51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A51 18572 bytes
SHA-256: 2ad3879de19ea59e0756335b6843f31f95ade4521f96ee42130de8f0f36df72d