Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ac412065445ebc7…

MALICIOUS

PDF

50.9 KB Created: 2021-06-01 10:44:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 7f1ff9529b572c74e449858312ed4d0b SHA-1: 7dca7bb1953b0dc8c4fa963392a047c9c29316e3 SHA-256: 6ac412065445ebc7f92bfcf294ba4335dd7a397459151ddf4717a6a9c2a50831
82 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA lure, designed to trick users into interacting with the content. It also embeds external URLs, one of which is directly referenced in the document body, suggesting a phishing or scam attempt. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9871

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/hack-de-roblox-dinero-infinito-en-rocitizens-game-hack
    • https://veyazdesign.pl/wp-content/uploads/fsqm-files/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdf
    • https://veyazdesign.pl/wp-content/uploads/fsqm-files/hack-roblox-tools-2021_GM431946152.pdf
    • https://veyazdesign.pl/wp-content/uploads/fsqm-files/free-disney-plus-accounts-tiktok_GM835599320.pdf
    • https://veyazdesign.pl/wp-content/uploads/fsqm-files/minecraft-pe-015-0-apk-free-download_GM479516143.pdf
    • https://veyazdesign.pl/wp-content/uploads/fsqm-files/free-claim-robux_GM431946152.pdf
    • https://veyazdesign.pl/wp-content/uploads/fsqm-files/how-to-speed-hack-robloxity_GM431946152.pdf
    • https://veyazdesign.pl/wp-content/uploads/fsqm-files/roblox-giftcard-email-free_GM431946152.pdf
    • https://veyazdesign.pl/wp-content/uploads/fsqm-files/coin-master-free-gifts_GM406889139.pdf
    • https://veyazdesign.pl/wp-content/uploads/fsqm-files/best-free-dances-roblox_GM431946152.pdf
    • https://veyazdesign.pl/wp-content/uploads/fsqm-files/free-roblox-accounts-bugmenot_GM431946152.pdf
    • https://veyazdesign.pl/wp-content/uploads/fsqm-files/how-to-hack-to-get-robux_GM431946152.pdf
    • https://veyazdesign.pl/wp-content/uploads/fsqm-files/delete-free-roblox-account_GM431946152.pdf
    • https://veyazdesign.pl/wp-content/uploads/fsqm-files/minecraft-windows-10-free-with-java_GM479516143.pdf
    • https://veyazdesign.pl/wp-content/uploads/fsqm-files/roblox-hack-gui-free-download_GM431946152.pdf
    • https://veyazdesign.pl/wp-content/uploads/fsqm-files/master-coin-free-spin_GM406889139.pdf
    • https://veyazdesign.pl/wp-content/uploads/fsqm-files/how-to-get-hacks-on-roblox_GM431946152.pdf
    • https://veyazdesign.pl/wp-content/uploads/fsqm-files/free-pins-for-robux_GM431946152.pdf
    • https://veyazdesign.pl/wp-content/uploads/fsqm-files/mine-minecraft-games-for-free_GM479516143.pdf
    • https://veyazdesign.pl/wp-content/uploads/fsqm-files/free-robux-no-verification_GM431946152.pdf
    • https://veyazdesign.pl/wp-content/uploads/fsqm-files/como-crear-hacks-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005361.bin
d3fc412781ff63b4d3fb04d62c4eafcae229f7e415ac4e02d5b30c040cd02c56
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5361 37212 bytes
font_01_sfnt_off0000a3c7.bin
b5357a912ca9c8eba37c1e0ec0004ee6c3f682d1dd22d144378dfdf494d4929b
pdf-font-stream PDF embedded font (sfnt) at offset 0xA3C7 18656 bytes