Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf8fcb4916a8c970…

MALICIOUS

PDF

34.4 KB Created: 2021-05-23 00:53:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: baf598ecec345b0c2b5d82ed9534be03 SHA-1: 687c0f1e7d614cb68b6f92520d43caa26752f4b6 SHA-256: bf8fcb4916a8c9706708fca959c61f5595472d1afc5b181e4f0883f84c495def
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document uses a lure related to 'Minecraft Hacks' and 'game generators' to entice users to click on a malicious URL. The primary URL, https://netcdn.xyz/app/479516143/minecraft-hacks-game-hack, is presented as a download link. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a potential for JavaScript execution or redirection to a malicious site, aligning with common phishing and malware delivery techniques.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9508

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-hacks-game-hack PDF link annotation
    • https://www.gvandenakker.nl/images/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/coin-master-free-spins-link-2021-hack_GM406889139.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/free-coins-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F75 24664 bytes
SHA-256: 3a1ef291b1dce33807e579789920ca8f5cc9dd47a9dafb524df850f21d44a5dd
font_01_sfnt_off0000669a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x669A 17740 bytes
SHA-256: 0307ae1fdf286ae380d36e270ef5c992f348f7a5470d5d5ce449782a5f21d577

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