Malicious PDF — malware analysis report

Static analysis result for SHA-256 d694502848b8064a…

MALICIOUS

PDF

34.8 KB Created: 2021-06-22 04:18:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: fef9b03c856faeebe2f2f827300c885b SHA-1: 77f2bf129a274ab44f6bb435d4aa57a28d47fdce SHA-256: d694502848b8064ae438f551aed5284ada39c699af2fedb523acfc51af6ab57f
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links, identified by the PDF_SEO_LINK_FARM heuristic, that are designed to lure users into clicking on them by promising free in-game items or currency. The ML_NYX_PDF_MALICIOUS heuristic and the presence of embedded URLs strongly indicate malicious intent. The document body explicitly mentions 'Free To Claim Roblox Groups' and 'CLICK HERE TO ACCESS ROBUX GENERATOR', reinforcing the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/free-to-claim-roblox-groups-game-hack
    • http://demenagementlandry.com/images/free-minecraft-svg-cutting-files_GM479516143.pdf
    • http://demenagementlandry.com/images/how-to-hack-m-coins-mcpe-master_GM406889139.pdf
    • http://demenagementlandry.com/images/how-to-get-gold-cards-on-coin-master-hack_GM406889139.pdf
    • http://demenagementlandry.com/images/free-spin-coin-master-2021-link_GM406889139.pdf
    • http://demenagementlandry.com/images/download-roblox-free-on-chromebook_GM431946152.pdf
    • http://demenagementlandry.com/images/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdf
    • http://demenagementlandry.com/images/is-coin-master-hack-safe_GM406889139.pdf
    • http://demenagementlandry.com/images/coin-master-game-hacking_GM406889139.pdf
    • http://demenagementlandry.com/images/robux-generator-without-human-verification_GM431946152.pdf
    • http://demenagementlandry.com/images/free-spin-codes-coin-master_GM406889139.pdf
    • http://demenagementlandry.com/images/roblox-hacked_GM431946152.pdf
    • http://demenagementlandry.com/images/yt-roblox-hack-protect-character_GM431946152.pdf
    • http://demenagementlandry.com/images/give-me-free-robux_GM431946152.pdf
    • http://demenagementlandry.com/images/coin-master-free-box_GM406889139.pdf
    • http://demenagementlandry.com/images/free-items-roblox-avatar_GM431946152.pdf
    • http://demenagementlandry.com/images/copy-and-paste-for-free-roblox-clothes_GM431946152.pdf
    • http://demenagementlandry.com/images/minecraft-games-free-download_GM479516143.pdf
    • http://demenagementlandry.com/images/roblox-speed-hack-download_GM431946152.pdf
    • http://demenagementlandry.com/images/can-you-download-minecraft-for-free_GM479516143.pdf
    • http://demenagementlandry.com/images/robloxcom-jailbreak-hack_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fbf.bin
e7a7286abd5bc76f01342e64155ce002658dc89ab788c907cef72408d3cc5c61
pdf-font-stream PDF embedded font (sfnt) at offset 0x2FBF 22708 bytes
font_01_sfnt_off0000622e.bin
dbe0da91910c120aa378ab72aeb542875ffa1cb52d7456c2ed1c6126732e6d4f
pdf-font-stream PDF embedded font (sfnt) at offset 0x622E 19348 bytes