PDF static analysis report

Static analysis result for SHA-256 efb5c2f603a50c86…

SUSPICIOUS

PDF

35.6 KB Created: 2021-07-06 17:36:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 6491c5b2c29fae7c80e84c5738808a8d SHA-1: 8edd780e1c63c3eb4a196167ba4eb8a82c1b5205 SHA-256: efb5c2f603a50c86c7127c424bf8e29716bd8e9ab301ebac665c377b3961f471
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external resources, including one directly pointing to a downloadable application. The presence of a high-confidence ML classifier firing and embedded URLs strongly suggests a malicious intent to trick users into downloading potentially harmful software. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a downloader or lure document.

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/406889139/hack-coin-master-343-apk-game-hack PDF link annotation
    • http://lib.fekon.untad.ac.id/repository/free-robux-codes-that-haven-t-been-used_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-get-stuff-for-free-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/rich-roblox-accounts-free_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-for-samsung-s3_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-hack-into-a-roblox-account-on-ipad_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-hack-no-verify_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-free-rare-cards_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-blox-piece-script-hack_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-hack-apk-ios-download_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-get-minecraft-windows-10-for-free-with-java_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/hack-roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-hack-for-robux-2021_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/hack-strucid-roblox-aimbot_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/reddit-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-look-like-naruto-in-roblox-for-free_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
stream_002_off000034f9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34F9 22800 bytes
SHA-256: 29d1bc0ea34f6f725fe174a33804ca4298654c748de76bd2de076b5e8911d6cb
font_01_sfnt_off00006802.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6802 18416 bytes
SHA-256: 71d2f8e68c1f2ddfa4df4e7d7e9f9d2f4e9296d26332e2415442221fc5a89d52

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