Malicious PDF — malware analysis report

Static analysis result for SHA-256 9af39b3d34802159…

MALICIOUS

PDF

36.1 KB Created: 2021-05-12 22:38:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d7269563c2070bd611fe88aa4bc07f57 SHA-1: b70c88a8a374a62098e8441b7a96b134e8b48401 SHA-256: 9af39b3d348021596793d04f3fc226e6a3f186d5e612bbd7947ff1678aefb6f9
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a critical heuristic indicating it links to a malicious redirector disguised as a 'free generator / game hack'. The embedded URL, https://netcdn.xyz/app/479516143/how-to-host-a-minecraft-server-for-free-game-hack, is identified as malicious infrastructure. The document body, though heavily obfuscated, contains references to hosting a Minecraft server and a call to action, reinforcing the lure. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.

Machine Learning

  • Nyx PDF Classifier clean score 0.0283

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/how-to-host-a-minecraft-server-for-free-game-hack In PDF document text
    • https://discord.ggIn 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_off0000357b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x357B 24284 bytes
SHA-256: 7adbb6d19a4850d9d85528c54c2fdb8a6d456432d34d8b4d3b79b453eb1e0715
font_01_sfnt_off00006ccb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CCB 17988 bytes
SHA-256: 552c8aaf5f0bf5f0c44469b5bd19d93c548c2f36967da1a6f1157fed71bc8ec1

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