Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b2f1493f520cf5b…

MALICIOUS

PDF

33.6 KB Created: 2021-07-21 19:53:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: ce629c5e524fc47cffc78f92a6bda6fb SHA-1: 1134c3c7a542f4353faf22d9124bae1bd5965c4d SHA-256: 2b2f1493f520cf5b28e66bd758637029bf911b0d433d660c6c4d766206572355
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks, directing users to a URL that likely hosts further malicious content or exploits. The ML classifier strongly indicated maliciousness, and the embedded link to 'netcdn.tw' is highly suspicious. While no scripts were directly extracted, the PDF structure itself facilitates the redirection, aligning with common phishing and malware delivery techniques.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://netcdn.tw/app/479516143/how-to-get-hacks-on-minecraft-game-hack PDF link annotation
    • https://www.wildpark-johannismuehle.de/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://www.wildpark-johannismuehle.de/images/free-robux-survey_GM431946152.pdfIn PDF document text
    • https://www.wildpark-johannismuehle.de/images/minecraft-online-free-download_GM479516143.pdfIn PDF document text
    • https://www.wildpark-johannismuehle.de/images/minecraft-bedrock-edition-download-pc-free_GM479516143.pdfIn PDF document text
    • https://www.wildpark-johannismuehle.de/images/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • https://www.wildpark-johannismuehle.de/images/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://www.wildpark-johannismuehle.de/images/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • https://www.wildpark-johannismuehle.de/images/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://www.wildpark-johannismuehle.de/images/free-modded-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://www.wildpark-johannismuehle.de/images/how-to-get-minecraft-for-free-on-mac_GM479516143.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
font_00_sfnt_off000030ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30AE 22424 bytes
SHA-256: f1f4faa7fbf6c9e875b6e7fcb1f3428a5fd859aa38f31b4fe082613ea09e9112
font_01_sfnt_off00006234.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6234 18044 bytes
SHA-256: 9f1e79a3b07781afcdd90921eb79530491bd6e36a063b246dd64f6dc9a4bd67a

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