Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0b55920d794b034…

MALICIOUS

PDF

41.8 KB Created: 2021-05-24 00:44:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 6b2af9bd740ead0eeb2d3626c54d6ead SHA-1: 154668dc1aa7a20caab9b07bf8af8b31b8cf5376 SHA-256: c0b55920d794b034fd331f5f8eb255491b1b10a3aa9f77498cf4da6968bdbff9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic firing for a 'GAME_HACK_REDIRECT_LURE', indicating it links to a generator or hack website. The primary malicious URL identified is https://netcdn.xyz/app/479516143/minecraft-windows-10-edition-free-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to trick users into downloading or accessing potentially harmful content, likely as a lure for further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7589

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 https://netcdn.xyz/app/479516143/minecraft-windows-10-edition-free-game-hack PDF link annotation
    • http://www.eptaviation.com/images/free-spin-coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://www.eptaviation.com/images/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.eptaviation.com/images/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://www.eptaviation.com/images/coin-master-hacks-no-human-verification_GM406889139.pdfIn PDF document text
    • http://www.eptaviation.com/images/coin-master-game_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000034c3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34C3 30088 bytes
SHA-256: a8a01390b27c68f9b2f5965edb474f445329fa88dcd6f0ce331e696c690aeb1f
font_01_sfnt_off00007776.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7776 2820 bytes
SHA-256: 972979c3a46100cf5f8fd289bc6fbd2496ff75fec0e3f6753648c72ec6eba714
font_02_sfnt_off00008116.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8116 18524 bytes
SHA-256: 0bf31bed13672a3e0ec3830f17f3a108a804d8b157495bd7936eaddb95c84b8e