PDF static analysis report

Static analysis result for SHA-256 63d8868133c39402…

SUSPICIOUS

PDF

35.5 KB Created: 2021-07-05 15:02:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: f9decc8da787638f411427d9ab159f08 SHA-1: 650b38a1227eccad52638644379204fd8c44ad43 SHA-256: 63d8868133c39402107f04073b502c78dae77f81932cedf89b89c759b1a6b36b
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites that offer 'free Robux' or 'Coin Master spins', indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URIs further supports a malicious intent to redirect users to potentially harmful content. No scripts were extracted, but the overall pattern suggests a lure for downloading a second-stage payload.

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/roblox-free-clothes-maker-game-hack PDF link annotation
    • http://perpus.stmik-im.ac.id/repository/claim-free-robux-button_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-admin-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-robux-accounts-bugmenot-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-explorer-hack_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-get-free-robux-without-downloading-or-human-verification_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-get-free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-free-spins-today-39_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-robux-glitches-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/cheat-codes-for-roblox-mad-city-cash_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-do-i-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/apk-roblox-hack-games_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/como-quitar-no-soy-un-robot-en-freer-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-hack-for-android_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-free-item-codes-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-champion-tshirt-free_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/noclip-roblox-cheat-engine_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-free-link_GM406889139.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_off00003338.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3338 22576 bytes
SHA-256: ec465daaf4d5e9cd0bd7c13eecd9d55464d4c24d57fbf08dfca37a2fca9547ab
font_01_sfnt_off000065a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65A9 19100 bytes
SHA-256: 99ba17199b7f461a29a4d6aa46e101c804671433a10f51adee9551ce5d510eaf

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