Malicious PDF — malware analysis report

Static analysis result for SHA-256 69881ff39ac3c97b…

MALICIOUS

PDF

33.8 KB Created: 2021-07-06 04:55:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 778e656f45cf09bfe88445d4766c3c50 SHA-1: 09ca4b9c20d9d0abbb5abf6ec23c63c06269c1ae SHA-256: 69881ff39ac3c97baa5777b38b077a50c597e179e9d7fabdeff14fb785cf893d
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs that form a link farm, likely intended to direct users to malicious websites offering game hacks and free items. The ML classifier strongly indicates maliciousness, and the presence of external URIs and a link farm points towards a phishing or malware distribution attempt. No scripts were extracted from this sample.

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.tw/app/479516143/how-to-get-minecraft-bedrock-edition-for-free-game-hack
    • https://pasca.unisba.ac.id/elibrary/repository/is-windows-10-minecraft-free_GM479516143.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/file-droper-roblox-hack_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/easyrobux-com-free-robux_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/promo-codes-for-free-stuff-roblox-2021_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-enter-paid-games-for-free-roblox_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-get-minecraft-for-free-on-ps4-2021_GM479516143.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/minecraft-free-apk_GM479516143.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/free-robux-obby-roblox-game_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-how-to-give-self-free-robux_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-free-bubble-gum-privat-server_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/free-robux-codes-not-used-2021_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/free-place-roblox_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-cheats-for-money-xbox-one_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/how-can-i-get-free-robux-in-roblox_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/download-cheat-roblox-jailbreak-for-pc_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-hack-on-apocalypse-rising-roblox_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/coin-master-free-coins-and-spins-online-tool_GM406889139.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/free-robux-no-verification-no-survey_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/free-robux-generator-for-robots_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/free-roblox-hack-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_off00002e4b.bin
91aebbde57547f5c9c1f680adc303f460deb01bbc79c19c16c0e62247c5bb554		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E4B 22408 bytes
font_01_sfnt_off00005ffb.bin
8749f690aacce1ff2d40288e6cd65b377fcb09a0c55c4616b39fbcf3e372c4de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FFB 18720 bytes

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