Malicious PDF — malware analysis report

Static analysis result for SHA-256 976d2f8997671ce7…

MALICIOUS

PDF

45.2 KB Created: 2021-06-07 09:53:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 17945b8083b254ab32cce9a639103ff5 SHA-1: 312a348d96ef9b49236972a12fc33a7888074011 SHA-256: 976d2f8997671ce78c7263edfbc851feb181fefb81217697e9a24e27dc0e6647
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links and a document body that lures users with promises of game hacks and free currency, specifically mentioning 'Roblox Free Rubox'. The primary link, https://netcdn.tw/app/431946152/roblox-free-rubox-game-hack, is flagged as a high-risk redirector. While no scripts were extracted, the PDF structure and embedded links strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/roblox-free-rubox-game-hack PDF link annotation
    • http://www.copoint.co.uk/images/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/roblox-cs-go-wall-hack_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/hack-coin-master-spin-apk_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/pubg-uc-top-up-center_GM1330123889.pdfIn PDF document text
    • http://www.copoint.co.uk/images/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/coin-master-hack-ios-no-verification_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/get-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • http://www.copoint.co.uk/images/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/hack-coin-master-game-download_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/strucid-aimbot_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/play-full-version-of-minecraft-for-free-no-download_GM479516143.pdfIn PDF document text
    • http://www.copoint.co.uk/images/minecraft-mod-menu_GM479516143.pdfIn PDF document text
    • http://www.copoint.co.uk/images/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • http://www.copoint.co.uk/images/coin-master-hack-apk-online_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/do-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://www.copoint.co.uk/images/earn-free-robux-today_GM431946152.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_004_off00005022.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5022 27176 bytes
SHA-256: 892418616ce2a7b3a895c654ac0ad689add63a9453925f54e98644664ebd601c
font_01_sfnt_off00008ea9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EA9 18088 bytes
SHA-256: 03c92d59c548fbfdae08874221752d30f8caaed88781636bf7d18542e7c5fe52

Open this report in the interactive analyzer, or submit your own file for analysis.