Malicious PDF — malware analysis report

Static analysis result for SHA-256 70cc0371da68f5ae…

MALICIOUS

PDF

35.5 KB Created: 2021-06-17 17:04:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: cc65cd1dad7743933c3d1fe6fc57a3d2 SHA-1: fe26b02fad4ef38bbb01b88b09f093c2f032368f SHA-256: 70cc0371da68f5aeac9f22f19e8f9d30a225a46b4c17872159506c8359b53399
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs, many of which point to IP addresses and are related to obtaining free Robux or hacking game accounts. The ML classifier strongly flagged this PDF as malicious, and the presence of a download button lure further supports a malicious intent. While no scripts were explicitly extracted, the document's structure and embedded URIs suggest it's designed to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/nombres-para-roblox-de-hacker-game-hack
    • http://111.68.26.74/widyapustaka/repository/earn-free-robux_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-free-gold-cards-link_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-host-a-minecraft-server-for-free_GM479516143.pdf
    • http://111.68.26.74/widyapustaka/repository/roblox-hacks-com_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-hack-someones-roblox-account_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-pet-treats-coin-master_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/what-is-robux-in-roblox_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/10-tips-to-get-free-robux_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-fly-in-struid-roblox-for-free-youtube_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-get-free-robux-on-chromebook_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-free-spins-gratis_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-change-roblox-username-for-free_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-hack-roblox-client_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/robux-adder_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/www-roblox-com-robux-free_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-only-1-step_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-make-a-free-vip-server-on-roblox_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/roblox-cheats-2021_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-from-just-watching-a-video_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-get-free-accessories-in-roblox-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003129.bin
500ccd02b9174e06961ff030e3624f84b293dabef4a9e668efe27637b65c9f18
pdf-font-stream PDF embedded font (sfnt) at offset 0x3129 23092 bytes
font_01_sfnt_off0000654f.bin
3292d7bd6f7c145a69edd5eb91142d508e1511fd6795c1c146d60b13ed17d601
pdf-font-stream PDF embedded font (sfnt) at offset 0x654F 19236 bytes