Malicious PDF — malware analysis report

Static analysis result for SHA-256 af09446ee7094203…

MALICIOUS

PDF

36.1 KB Created: 2021-07-02 01:22:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 83cc5d16e00a83c0343068847ff2284b SHA-1: 2fffb7551f54ef44eafa0e264861df2cd8f6feae SHA-256: af09446ee7094203f0639b751fd5aefd42de0b918de8445ab8e51ae02a52efda
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous embedded URLs and a 'download button' lure, strongly suggesting it is designed to trick users into downloading further malicious content. The ML classifier also flagged this PDF as malicious with high confidence. The document body and extracted URLs indicate a theme of providing cheats or free items for games, a common lure for malware distribution.

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/how-to-get-free-audio-jailbreak-roblox-game-hack
    • http://digilib.iailm.ac.id//repository/free-robux-no-verification-or-survey_GM431946152.pdf
    • http://digilib.iailm.ac.id/repository/free-pet-food-for-coin-master_GM406889139.pdf
    • http://digilib.iailm.ac.id/repository/coin-master-mod-apk-unlimited-spin-download-free-full-version_GM406889139.pdf
    • http://digilib.iailm.ac.id/repository/roblox-shard-seekers-how-to-cheat-engine-shards_GM431946152.pdf
    • http://digilib.iailm.ac.id/repository/roblox-sex-hack-2021_GM431946152.pdf
    • http://digilib.iailm.ac.id//repository/coin-master-free-coins-link_GM406889139.pdf
    • http://digilib.iailm.ac.id/repository/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdf
    • http://digilib.iailm.ac.id/repository/free-spins-coin-master-2021_GM406889139.pdf
    • http://digilib.iailm.ac.id/repository/free-name-change-roblox-hack_GM431946152.pdf
    • http://digilib.iailm.ac.id//repository/how-can-i-get-free-robux_GM431946152.pdf
    • http://digilib.iailm.ac.id/repository/roblox-lua-programming-book-pdf-free_GM431946152.pdf
    • http://digilib.iailm.ac.id/repository/how-to-download-minecraft-hacks_GM479516143.pdf
    • http://digilib.iailm.ac.id//repository/how-to-make-a-roblox-group-for-free_GM431946152.pdf
    • http://digilib.iailm.ac.id//repository/free-robux-no-apps_GM431946152.pdf
    • http://digilib.iailm.ac.id//repository/how-to-hack-to-get-robux_GM431946152.pdf
    • http://digilib.iailm.ac.id/repository/roblox-muscle-simulater-cheat-codes_GM431946152.pdf
    • http://digilib.iailm.ac.id/repository/coin-master-online-hack_GM406889139.pdf
    • http://digilib.iailm.ac.id/repository/hack-cliens-for-roblox_GM431946152.pdf
    • http://digilib.iailm.ac.id/repository/hack-any-roblox-account-using-a-program_GM431946152.pdf
    • http://digilib.iailm.ac.id/repository/hack-btools-roblox-jailbreak_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003441.bin
7fb51bf52f01747735dc22e62a04f562556cd7611d1352892155c96cdf83accc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3441 22416 bytes
font_01_sfnt_off00006652.bin
57abec55d914d50e3b75f19852eb3c7f4e87e93ebfa0429a0d4416bde46bfadd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6652 19688 bytes

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