Malicious PDF — malware analysis report

Static analysis result for SHA-256 15922f11618549ee…

MALICIOUS

PDF

41.4 KB Created: 2021-04-24 00:55:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e4becaa8bbbd2b67735596aec0298de8 SHA-1: 0ddd51264b887ae206bea4933be7f3d200634399 SHA-256: 15922f11618549ee32d32fb451d309c842f53cf9091a7777bc480707951d18b7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of "game hacks" to entice users to click on a malicious URL. The primary link identified, https://netsecure.top/app/431946152/roblox-hack-download-apocalypse-rising-game-hack, is flagged as a redirector to potentially malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

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://netsecure.top/app/431946152/roblox-hack-download-apocalypse-rising-game-hack PDF link annotation
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/free-robux-not-clickbait.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/how-to-get-the-stylish-animations-in-roblox-for-free.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/hacking-classes-for-roblox.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-april-2021.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/this-game-gives-you-free-robux.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-easy-and-fast-on-ipad.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/free-roblox-clothes-no-glitch.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/roblox-hacks-2021-level-7.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/gaming-app-cheats-roblox.pdfIn PDF document text
    • https://www.beritabali.com/new/public/ckfinder/userfiles/files/roblox-dentist-game-online-free-no-download.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_off00004310.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4310 24896 bytes
SHA-256: 44e46745270c4a3e3ce681a447681edb2f29b7dd43430bc20adea59c0395466a
font_01_sfnt_off00007c5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C5A 19452 bytes
SHA-256: edbf4933a315210f7f08f9eb4690a6be13afb6ec36ef241b10195d7437f4a941

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