Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3f7ea726806a993…

MALICIOUS

PDF

36.4 KB Created: 2021-05-21 23:39:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 48c21c8edda362e619fa49e4af14f419 SHA-1: 633c2aa240447db429267764d3d4230f4760d112 SHA-256: b3f7ea726806a993ee9d35af1c4380c364380ecd012273d5c6b9bd90f758d28e
160 Risk Score

Malware Insights

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

The PDF document contains multiple links, including one identified as a malicious redirector. The document body and heuristics indicate a lure for a 'game hack' or 'free generator', suggesting a phishing or scam attempt. The primary malicious URL identified is https://netcdn.xyz/app/479516143/minecraft-for-chromebook-free-game-hack, which is likely used to deliver a secondary payload or redirect to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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/minecraft-for-chromebook-free-game-hack In PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/hacker-coin-master_GM406889139.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.bathshoponline.co.uk/uploads/files/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn 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_002_off000034a4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34A4 24688 bytes
SHA-256: 8ebbd95eb0cd4e4bc8a52eae17f176d67285b91c8eaf0bfcc58bdd682293d42e
font_01_sfnt_off00006cb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CB7 18464 bytes
SHA-256: 2a1fd25b60091da4e89f293bc06fa32417487358dc39e20cf321c71e22d0bfdc

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