Malicious PDF — malware analysis report

Static analysis result for SHA-256 01393d8fadb7fa3e…

MALICIOUS

PDF

49.9 KB Created: 2021-05-13 05:34:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f8245528ab95187c3a8c0898bd9f818d SHA-1: 7c604727db5f32584b6ea8788d58466ec8e9a5f2 SHA-256: 01393d8fadb7fa3eabe169a19a2ba58531a74cd01190cd6e07a307a166a7d4f3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'Free Robux' and 'game hack', directing users to a suspicious URL. This indicates a phishing or scam attempt designed to entice users to visit a potentially malicious site. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9349

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-working-game-hack PDF link annotation
    • http://poonhilltreks.com/userfiles/files/how-to-get-a-free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/roblox-bux-free_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/coin-master-rewards_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/coin-master-links-to-get-free-spins_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/minecraft-free-install_GM479516143.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/free-minecraft-skin-packs_GM479516143.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/coin-master-daily-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/free-robux-apk_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/coin-master-free-spins-and-cards_GM406889139.pdfIn PDF document text
    • http://poonhilltreks.com/userfiles/files/hack-coin-master-net_GM406889139.pdfIn PDF document text
    • https://www.roblox.coIn PDF document text
    • https://direct-link.netIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c70.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C70 30048 bytes
SHA-256: 9a6df66e841098825f655bfd8c08e7bc3ffde008e793d59fd7ec1c728545ed88
font_01_sfnt_off00008dec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DEC 7272 bytes
SHA-256: f462303657ce1de10d3e7d5ae1fe17c8584116bd5bc216971166de87266da924
font_02_sfnt_off00009f5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F5D 18788 bytes
SHA-256: 146362cb081aa7c6718ebc51132ca2538876dc1922f8d33668898621d3d02efe