Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d9023b5b8f3ad19…

MALICIOUS

PDF

34.3 KB Created: 2021-06-27 06:05:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 3bccb13cc5c072fb329d7c6d84277e19 SHA-1: ac216048f7ca62259ed0ac5f8213629fa89ed1ec SHA-256: 3d9023b5b8f3ad19d6c7a8155e9087af839611eb0829872087dd3d8080b387a0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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 http://netcdn.co/app/431946152/roblox-roblosecurity-hack-game-hack PDF link annotation
    • http://uilis.unsyiah.ac.id/ebook/repository/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/coin-master-apk-hacked-3526_GM406889139.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/how-do-you-get-robux_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/check-background-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/how-to-get-free-robux-place_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/find-the-code-and-get-400-million-free-robux_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/coin-master-heaven-links_GM406889139.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/how-to-get-robux-free-on-ipad_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/minecraft-free-download-windows_GM479516143.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/when-you-get-hacked-on-roblox-rage-quit_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/all-links-for-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/hacks-for-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_off00002f83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F83 21972 bytes
SHA-256: 743e7f865df17786c51229b7652cc8b2ccfdcab39259f3bd2cab6131a2e4d9bf
font_01_sfnt_off00006043.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6043 19200 bytes
SHA-256: 223efe091e13dcdedcb7b97df6733498ec10c1ef3f7ef3c0e6df27218849745f

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