Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f1ea8f02a910ef2…

MALICIOUS

PDF

37.4 KB Created: 2021-05-13 15:04:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9fd1ed601746e4b0ead2e3486c2f99ec SHA-1: d222283bd659c2903b00067343431005fb64cee6 SHA-256: 2f1ea8f02a910ef2bb7be52ae2e99b3c247870de47373e747c68fd5228487b55
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to a 'free generator / game hack' lure. This link, 'https://netcdn.xyz/app/431946152/blox-world-free-robux-game-hack', is identified as malicious infrastructure. The document body, though heavily obfuscated, contains references to this URL and appears to be generated by wkhtmltopdf, suggesting it was likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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/blox-world-free-robux-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_off00003385.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3385 26520 bytes
SHA-256: c4e4457dcd9dc994522753ae92a1c3edc96af3b82712307f38e1b189303fb39f
font_01_sfnt_off0000703d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x703D 18460 bytes
SHA-256: aacba205b02649cb17ca6db96e04e864edcc8b3535ee86ede1af231380f35ab7

Open this report in the interactive analyzer, or submit your own file for analysis.