Malicious PDF — malware analysis report

Static analysis result for SHA-256 68189f01854ef829…

MALICIOUS

PDF

33.4 KB Created: 2021-07-05 05:24:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: c16f5d5f8f45dfe6fc6639e7eca55626 SHA-1: b1c53ca82300e34ceee83cc72177735227f6a4e2 SHA-256: 68189f01854ef829ae9b6f1e8c6586f65140822b09cded353bb285d7724e21e5
102 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which are part of a link farm, suggesting a phishing or malware distribution attempt. The document body and extracted URLs indicate a lure related to game hacks and cheats, aiming to trick users into clicking malicious links. The ML classifier strongly flagged this PDF as malicious.

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/simplysarc-game-hack
    • https://lib.insan-unggul.ac.id/repository/roblox-cheat-engine-shut-down-server_GM431946152.pdf
    • https://lib.insan-unggul.ac.id/repository/robux-hack-no-human-verification_GM431946152.pdf
    • https://lib.insan-unggul.ac.id/repository/ooby-give-you-free-robux_GM431946152.pdf
    • https://lib.insan-unggul.ac.id/repository/free-spin-hack-coin-master-2021_GM406889139.pdf
    • https://lib.insan-unggul.ac.id/repository/roblox-recover-hacked-account_GM431946152.pdf
    • https://lib.insan-unggul.ac.id/repository/coin-master-free-spins-link-today-2021_GM406889139.pdf
    • https://lib.insan-unggul.ac.id/repository/counter-blox-roblox-offensive-hacks-aimbot_GM431946152.pdf
    • https://lib.insan-unggul.ac.id/repository/free-coin-master-spins_GM406889139.pdf
    • https://lib.insan-unggul.ac.id/repository/how-to-get-free-robux-ios-no-human-verification_GM431946152.pdf
    • https://lib.insan-unggul.ac.id/repository/how-to-get-free-roblox-hair_GM431946152.pdf
    • https://lib.insan-unggul.ac.id/repository/minecraft-114-download_GM479516143.pdf
    • https://lib.insan-unggul.ac.id/repository/roblox-super-power-training-simulator-killing-intent-cheat_GM431946152.pdf
    • https://lib.insan-unggul.ac.id/repository/how-to-get-minecraft-java-edition-for-free_GM479516143.pdf
    • https://lib.insan-unggul.ac.id/repository/free-spins-coin-master-links-2021_GM406889139.pdf
    • https://lib.insan-unggul.ac.id/repository/free-robux-eucom_GM431946152.pdf
    • https://lib.insan-unggul.ac.id/repository/free-admin-roblox-gane_GM431946152.pdf
    • https://lib.insan-unggul.ac.id/repository/da-hood-pitchfork-hack-roblox_GM431946152.pdf
    • https://lib.insan-unggul.ac.id/repository/how-to-use-speed-hacks-in-roblox_GM431946152.pdf
    • https://lib.insan-unggul.ac.id/repository/hack-into-someones-roblox-account_GM431946152.pdf
    • https://lib.insan-unggul.ac.id/repository/free-20-roblox-pastebin_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e26.bin
a8c279447f79d636648d8f8b736b980cec39a64e38f5eed3d2ec36d226a724f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E26 22432 bytes
font_01_sfnt_off00005fb2.bin
7c23f3e3d318805df684302eb3460a013bc43601185b4b54a2bf1903bd620144		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB2 18440 bytes

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