Malicious PDF — malware analysis report

Static analysis result for SHA-256 7223d8246a8c9dff…

MALICIOUS

PDF

41.5 KB Created: 2021-04-27 04:19:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 0da50ec1b14b49eae49004bd186ad100 SHA-1: d365b90c15c1ec0fb74d95311e76ae1a60a63b97 SHA-256: 7223d8246a8c9dff8440c1ebeda0f3a08ef951d133a7e89f55ff61a43622be6f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links and a prominent call-to-action to download game cheats, specifically for Roblox. The primary link redirects to a suspicious domain known for hosting malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to exploit user interest in game hacks to redirect them to a malicious site, likely for further payload delivery or phishing.

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/roblox-cheat-engine-murder-mystery-game-hack PDF link annotation
    • http://www.drent.se/images/quick-robux-hacks.pdfIn PDF document text
    • http://www.drent.se/images/cheat-codes-for-roblox-xbox-one.pdfIn PDF document text
    • http://www.drent.se/images/free-roblox-codes-from-the-toys.pdfIn PDF document text
    • http://www.drent.se/images/pointsprizes-free-robux.pdfIn PDF document text
    • http://www.drent.se/images/como-tener-robux-gratis-facil-y-rapido-sin-hack.pdfIn PDF document text
    • http://www.drent.se/images/free-robux-and-tix-no-survey-or-download.pdfIn PDF document text
    • http://www.drent.se/images/free-wknd-strucid-alpha-roblox-lua-script.pdfIn PDF document text
    • http://www.drent.se/images/free-tokyo-ghoul-shirts-roblox.pdfIn PDF document text
    • http://www.drent.se/images/roblox-account-login-hack.pdfIn PDF document text
    • http://www.drent.se/images/free-robux-negg.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_off0000417a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x417A 25560 bytes
SHA-256: 260d46eb196a3eb7a108a44f8549e8d8bc4616967a2356ac4bc3faeb3bb9db83
font_01_sfnt_off00007cf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF4 19380 bytes
SHA-256: a2984ef58352dfcee3229fa8b94345b11cdaa4314b2b9d3c9ba8181c8c45fb8d

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