Malicious PDF — malware analysis report

Static analysis result for SHA-256 24976851223b8e50…

MALICIOUS

PDF

45.4 KB Created: 2021-06-01 10:33:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 6b1009eef9e4c5cb6bae3c61fdef18f2 SHA-1: 855a59a4c807302553319128f28c1171f0cedd25 SHA-256: 24976851223b8e505e2c4edeec0357a44b7ba3946b5c8cdbdb60657860de3902
82 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA and a call-to-action button, aiming to trick the user into downloading a malicious file. It contains numerous URLs pointing to game cheats and hacks, with one URL directly linked to a potential malware download. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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 https://netcdn.xyz/app/431946152/roblox-god-hack-cheat-engine-6.4-game-hack PDF link annotation
    • https://speakonline.dk/wp-content/uploads/fsqm-files/earn-free-robux_GM431946152.pdfIn PDF document text
    • https://speakonline.dk/wp-content/uploads/fsqm-files/free-robux-games-on-roblox-link_GM431946152.pdfIn PDF document text
    • https://speakonline.dk/wp-content/uploads/fsqm-files/free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • https://speakonline.dk/wp-content/uploads/fsqm-files/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • https://speakonline.dk/wp-content/uploads/fsqm-files/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://speakonline.dk/wp-content/uploads/fsqm-files/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • https://speakonline.dk/wp-content/uploads/fsqm-files/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
    • https://speakonline.dk/wp-content/uploads/fsqm-files/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • https://speakonline.dk/wp-content/uploads/fsqm-files/roblox-synapse-cheat_GM431946152.pdfIn PDF document text
    • https://speakonline.dk/wp-content/uploads/fsqm-files/robux-free-c_GM431946152.pdfIn PDF document text
    • https://speakonline.dk/wp-content/uploads/fsqm-files/roblox-r45-hack_GM431946152.pdfIn PDF document text
    • https://speakonline.dk/wp-content/uploads/fsqm-files/minecraft-windows-10-edition-free_GM479516143.pdfIn PDF document text
    • https://speakonline.dk/wp-content/uploads/fsqm-files/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://speakonline.dk/wp-content/uploads/fsqm-files/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • https://speakonline.dk/wp-content/uploads/fsqm-files/roblox-hack-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://speakonline.dk/wp-content/uploads/fsqm-files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • https://speakonline.dk/wp-content/uploads/fsqm-files/cheat-codes-for-pokemon-galaxy-in-roblox_GM431946152.pdfIn PDF document text
    • https://speakonline.dk/wp-content/uploads/fsqm-files/is-roblox-being-hacked-2021_GM431946152.pdfIn PDF document text
    • https://speakonline.dk/wp-content/uploads/fsqm-files/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://speakonline.dk/wp-content/uploads/fsqm-files/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000050e0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50E0 25420 bytes
SHA-256: b93de74c990e906283a104cf2feba21e9e41e1781e68daf179f47f06cc72a215
font_01_sfnt_off00008bc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BC9 19332 bytes
SHA-256: 412c4b59eb694fd37bc9e6dc90bd15ab719f20fa04fb1945d46807e401c29687

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