Malicious PDF — malware analysis report

Static analysis result for SHA-256 2736d16c586fdd5a…

MALICIOUS

PDF

41.5 KB Created: 2021-04-29 00:18:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 8a2bc3ff47b288d5fa79a8ccec21b9ee SHA-1: fdac8cf9b894d126fb46d2e01d12a1aaf4c2644e SHA-256: 2736d16c586fdd5aede13a6a93d0adeac68c1b5ccffdad0c0bc762e97d515ded
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links and a call-to-action phrase, directing users to websites offering "free admin commands" or "game hacks" for Roblox. The primary URL, https://netcdn.xyz/app/431946152/2021-how-to-free-admin-commands-to-your-roblox-gane-game-hack, is flagged as a lure for game hacks. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a potential for JavaScript execution or redirection to malicious content, aligning with common phishing and malware distribution tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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/431946152/2021-how-to-free-admin-commands-to-your-roblox-gane-game-hack PDF link annotation
    • https://lib-stie.yai.ac.id/repository/robux-free-ohne-telefonnummer.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/e-hack-roblox.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-hack-mo.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-free-robux-without-human-verification-2021.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-toffu.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-hack-29-05-17.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/hack-week-roblox.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-hack-free-money.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-hack-apocalypse-rising-2021-download.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-make-things-free-in-roblox.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_003_off00003fda.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3FDA 26988 bytes
SHA-256: b8b83cdca68c2ec7238dd2547e75b1c5562870b905ce7c901190225da510e954
font_01_sfnt_off00007c6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C6D 19596 bytes
SHA-256: 265a75c5d39c6dbc7ffc802fffa335af5b155f09eb30d0078266dd09f16dfe4a

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