Malicious PDF — malware analysis report

Static analysis result for SHA-256 f03a1248d4ada988…

MALICIOUS

PDF

34.3 KB Created: 2021-06-25 13:26:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e018bfd5b58345d9fda835e933434a97 SHA-1: 6aefe9e57487397af94b35f4ca0e410aedb76581 SHA-256: f03a1248d4ada9885ed9d132a484f9a7ac507ddf9578ba028c63baf272852965
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF document contains a large number of external links, many of which are SEO-optimized and point to game-related content like Roblox and Minecraft hacks. The ML classifier strongly flagged this PDF as malicious, and the presence of a download button lure further supports a malicious intent to trick users into downloading potentially harmful files. The document body and extracted URLs suggest a phishing or malware distribution scheme.

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/hacks-para-roblox-lumber-tycoon-2-game-hack
    • http://library.stikessuakainsan.ac.id//repository/robux-gift-card-free_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id/repository/how-to-hack-roblox-retail-tycoon_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id/repository/how-to-get-free-robux-inspect_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id/repository/a-game-were-you-can-get-free-robux-roblox_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id//repository/minecraft-bedrock-download-pc-free_GM479516143.pdf
    • http://library.stikessuakainsan.ac.id/repository/how-to-hack-someones-roblox-account-2021_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id/repository/free-pink-hair-roblox_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id//repository/how-to-hack-someones-roblox-account-2021_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id//repository/hack-roblox-players_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id/repository/free-vpn-for-minecraft_GM479516143.pdf
    • http://library.stikessuakainsan.ac.id/repository/how-to-block-someone-on-coin-master_GM406889139.pdf
    • http://library.stikessuakainsan.ac.id//repository/free-roblox-com_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id//repository/coin-master-hack-spins-app_GM406889139.pdf
    • http://library.stikessuakainsan.ac.id/repository/minecraft-java-edition-free-download_GM479516143.pdf
    • http://library.stikessuakainsan.ac.id//repository/free-robux-giveaway_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id/repository/coin-master-free-spins-daily-fb-champion_GM406889139.pdf
    • http://library.stikessuakainsan.ac.id/repository/spin-and-coin-link_GM406889139.pdf
    • http://library.stikessuakainsan.ac.id/repository/coin-master-coin-link_GM406889139.pdf
    • http://library.stikessuakainsan.ac.id/repository/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id/repository/how-to-hack-and-on-roblox-on-murderer-mystery-2_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ecb.bin
951749d42a631e4b51de25c29ba47ad51e1a41e207a260aa248716b5f87a7407		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ECB 22164 bytes
font_01_sfnt_off00005faf.bin
011fe9072db7456e34ac045e1cde531795fa31e6b427b889afeeeb60e648d9ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FAF 19512 bytes

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