PDF static analysis report

Static analysis result for SHA-256 a63787ba5506298e…

SUSPICIOUS

PDF

34.5 KB Created: 2021-07-05 13:58:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 91161f02fac8de4488da59abc19148c1 SHA-1: 5261f2728f88fb519ec8714be102358e9813ee48 SHA-256: a63787ba5506298ec9780b75597fc826bcea2767dda2f810dc2e710ef4fbb9c9
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a prominent call-to-action lure related to free Robux and game hacks. The ML classifier strongly flagged this PDF as malicious, indicating it likely attempts to download a second-stage payload or redirect the user to a malicious site. The presence of the URL http://netcdn.tw/app/431946152/free-robux-2021-hack-game-hack is a primary indicator of this malicious intent.

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.tw/app/431946152/free-robux-2021-hack-game-hack PDF link annotation
    • http://www.vetmed.fkh.unair.ac.id/repository/free-face-codes-roblox_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/coin-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/roblox-how-to-get-free-robux-no-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/free-money-on-jalbreak-roblox_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/coin-master-hack-reddit_GM406889139.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/insta-kill-any-player-roblox-hack_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/how-to-hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/claim-free-robux-button_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/minecraft-java-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/roblox-hack-obc-2021_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/coin-master-heaven-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/roblox-restaurant-tycoon-hack_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/millions-of-free-robux_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/how-to-get-minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/hack-facile-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
font_00_sfnt_off00003024.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3024 22396 bytes
SHA-256: ee95e3340c7ec865d5968c21c3a4e363aa5db5083eba1c62f13aeb2d694d863c
font_01_sfnt_off000061c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C7 19100 bytes
SHA-256: f1b6cb026be783ad89785a16bf0a9b5376fc83511dab12713df2d1c2ade9cbc5

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