Malicious PDF — malware analysis report

Static analysis result for SHA-256 2057f0fe3c3b68f4…

MALICIOUS

PDF

41.8 KB Created: 2021-05-13 07:34:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 6096909cbd5200928edb9f11af088d21 SHA-1: eb77979aa2fe84debd891a89df2c9f31323456ba SHA-256: 2057f0fe3c3b68f412fec3ade4ae71f51f48c3e5f088cb52eab9ca93b560b470
82 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA to trick the user into interacting with it, likely to initiate a download. The embedded URL and numerous other URLs found within the document point to sites offering game hacks and cheats, suggesting a social engineering lure for potentially malicious downloads. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/lastrick-com-coin-master-hack-game-hack PDF link annotation
    • https://daftarmncvision.id/ckfinder/userfiles/files/free-roblox-website_GM431946152.pdfIn PDF document text
    • https://daftarmncvision.id/ckfinder/userfiles/files/cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • https://daftarmncvision.id/ckfinder/userfiles/files/coin-master-free-in-app-purchases-jailbreak_GM406889139.pdfIn PDF document text
    • https://daftarmncvision.id/ckfinder/userfiles/files/robux-scam_GM431946152.pdfIn PDF document text
    • https://daftarmncvision.id/ckfinder/userfiles/files/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://daftarmncvision.id/ckfinder/userfiles/files/hack-coin-master-app-ios_GM406889139.pdfIn PDF document text
    • https://daftarmncvision.id/ckfinder/userfiles/files/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • https://daftarmncvision.id/ckfinder/userfiles/files/coin-master-hacks-no-human-verification_GM406889139.pdfIn PDF document text
    • https://daftarmncvision.id/ckfinder/userfiles/files/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://daftarmncvision.id/ckfinder/userfiles/files/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • https://daftarmncvision.id/ckfinder/userfiles/files/roblox-free-item-codes_GM431946152.pdfIn PDF document text
    • https://daftarmncvision.id/ckfinder/userfiles/files/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • https://daftarmncvision.id/ckfinder/userfiles/files/spin-and-coin_GM406889139.pdfIn PDF document text
    • https://daftarmncvision.id/ckfinder/userfiles/files/free-group-roblox_GM431946152.pdfIn PDF document text
    • https://daftarmncvision.id/ckfinder/userfiles/files/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://daftarmncvision.id/ckfinder/userfiles/files/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • https://daftarmncvision.id/ckfinder/userfiles/files/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • https://daftarmncvision.id/ckfinder/userfiles/files/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • https://daftarmncvision.id/ckfinder/userfiles/files/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://daftarmncvision.id/ckfinder/userfiles/files/coin-master-hack-extension_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004962.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4962 24668 bytes
SHA-256: 59948a7c2973603188d44fd3108e52928bf213aa3023dbe1b518801281993091
font_01_sfnt_off000081f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81F1 17976 bytes
SHA-256: 24c05c4553955a7d5dc0138d87aec54e9ee3b9904c328382cc8e24dd34e608e2

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