Malicious PDF — malware analysis report

Static analysis result for SHA-256 34f2036a64763693…

MALICIOUS

PDF

36.0 KB Created: 2021-05-10 15:36:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 217822c0c50a82136d18866718aad285 SHA-1: 35f3eaf4f03710a52103f1c2794377f0630fa9e5 SHA-256: 34f2036a647636930b26ae93cb59a3ed07f5b4dda953114f8564f52eda9840ac
130 Risk Score

Malware Insights

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

The PDF document contains a critical heuristic firing for a redirector lure, specifically linking to a 'free generator / game hack'. The embedded URL, https://netcdn.xyz/app/431946152/how-to-get-free-robux-on-chromebook-game-hack, is identified as malicious infrastructure. The document body also contains a call-to-action phrase, reinforcing the lure. While no scripts were explicitly extracted, the nature of the redirector suggests it likely leads to a further stage of malicious activity, potentially involving exploitation or further payload delivery.

Machine Learning

  • Nyx PDF Classifier clean score 0.0243

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-to-get-free-robux-on-chromebook-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_off00003234.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3234 24320 bytes
SHA-256: c0cae63f6e7fe6e068f6c50fff5e72fd961da3aa1f34df0a9036a88b53e8fedf
font_01_sfnt_off000069c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69C7 18880 bytes
SHA-256: cfbdee24d7402b99052158ce8ccd316620959aaec27a5d82eaae160d81e49f1b

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