PDF static analysis report

Static analysis result for SHA-256 991355f2ee7e49b3…

SUSPICIOUS

PDF

33.2 KB Created: 2021-06-20 11:15:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 6479a7bc3d0c288f1b73d3ea26e5f5fa SHA-1: dc7f6747d492510478915ca04c5ca90273c0fa41 SHA-256: 991355f2ee7e49b355a67b8dfc6ecc48632bea5ef288717ba8f3be7e429abcd2
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous URLs pointing to sites offering free in-game currency for popular games, suggesting a phishing or scam lure. The ML classifier also flagged the PDF as malicious. While no scripts were explicitly extracted, the presence of external URIs and the overall theme strongly indicate an attempt to trick users into downloading potentially unwanted or malicious software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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/roblox-redeem-card-pin-free-game-hack PDF link annotation
    • http://zercalo.org/images/how-to-get-free-robux-on-roblox-2021-july_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/free-friends-roblox_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/coinmasterhack-club_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/rbx-place-free-robux_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/how-to-get-free-robux-on-ios-2021_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/coin-master-free-download_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/coin-master-hack-quora_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/roblox-redeem-robux_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/roblox-limiteds-for-free_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/minecraft-games-to-play-for-free_GM479516143.pdfIn PDF document text
    • http://zercalo.org/images/how-to-hack-roblox-without-getting-banned_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/free-tiktok-likes-no-survey_GM835599320.pdfIn PDF document text
    • http://zercalo.org/images/cheat-pour-phantom-force-roblox-2021_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/free-robux-please_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/coin-master-free-spins-2021-generator_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/can-roblox-track-you-if-you-hack-them_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
font_00_sfnt_off00002c21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C21 21644 bytes
SHA-256: 85f6c97da43b8ae58d6498213072b5148b28c9260441e3bddbbcf73ae8b54565
font_01_sfnt_off00005bac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BAC 19360 bytes
SHA-256: 127a28ded24a3700059d93d3bc5b7e14dd405490197eb48a903f3eeab058de68

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