Malicious PDF — malware analysis report

Static analysis result for SHA-256 c733445f2052ad0e…

MALICIOUS

PDF

45.2 KB Created: 2021-05-12 22:00:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 97882d8ab9e0bceded395a17b43f198e SHA-1: 0b1d43213803b3869116b4ddeee5d51397de6730 SHA-256: c733445f2052ad0e1833b5d3ee1c1304fdb84782b7fe207ebf15a13380c663f0
82 Risk Score

Malware Insights

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

The PDF document contains a lure for free Robux and game hacks, directing users to a malicious URL. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to exploit user interest in gaming to redirect them to potentially malicious content. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/free-robux-images-game-hack PDF link annotation
    • http://poonhilltreks.com/userfiles/files/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/roblox-robux_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/coin-master-hack-no-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/free-robux-codes-not-used_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/how-to-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/coin-master-hack-account_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/coin-master-hack-lost-world-2021_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/how-to-hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/free-coin-master-s_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/coin-master-mod-free-download_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/roblox-avatar-tester_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/rbxoffer-com-free-robux_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/roblox-hack-site_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/free-minecraft-shaders_GM479516143.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
stream_003_off00004b6b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B6B 29600 bytes
SHA-256: 9c929d9e19de62419c1d142bf685cfa692e27bf1d582e22be70e004ff5c6bd52
font_01_sfnt_off00008d0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D0A 18792 bytes
SHA-256: a2580c58451f3b1d88c8ceab1016c43f7244c9e681afad5968b7c22bbe0132ae

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