PDF static analysis report

Static analysis result for SHA-256 f691825887942751…

SUSPICIOUS

PDF

41.7 KB Created: 2021-05-12 13:25:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 4ef6fc888861643b857a808e69ad7e53 SHA-1: a14e94ee37a0212080ee63e41176f48d3ff8da29 SHA-256: f69182588794275166fede6395f41ff12bb683c16b54d97ae9da6fbaca3d4734
42 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs and document body text that explicitly advertise "hacks" and "free spins" for games, aiming to trick users into visiting malicious sites. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is part of a phishing or malware distribution scheme. The presence of external URIs and a visual download button heuristic further reinforces this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-free-2021-spin-link-game-hack PDF link annotation
    • https://library.kysm.edu.my/repository/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • https://www.library.kysm.edu.my/repository/appsmob-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.library.kysm.edu.my/repository/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://www.library.kysm.edu.my/repository/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • https://www.library.kysm.edu.my/repository/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • https://library.kysm.edu.my/repository/earn-free-robux_GM431946152.pdfIn PDF document text
    • https://library.kysm.edu.my/repository/coin-master-game-hacking-tricks_GM406889139.pdfIn PDF document text
    • https://library.kysm.edu.my/repository/how-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.library.kysm.edu.my/repository/hack-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://library.kysm.edu.my/repository/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • https://www.library.kysm.edu.my/repository/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • https://library.kysm.edu.my/repository/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://library.kysm.edu.my/repository/free-spins-coin-master-ios-links_GM406889139.pdfIn PDF document text
    • https://www.library.kysm.edu.my/repository/1x1x1x1-roblox-id_GM431946152.pdfIn PDF document text
    • https://library.kysm.edu.my/repository/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • https://library.kysm.edu.my/repository/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.library.kysm.edu.my/repository/roblox-play-as-guest-free_GM431946152.pdfIn PDF document text
    • https://library.kysm.edu.my/repository/free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.library.kysm.edu.my/repository/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • https://library.kysm.edu.my/repository/how-to-hack-coin-master-ios-2021_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_off00004809.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4809 24344 bytes
SHA-256: 814eba5eef0965b2faf57ad4abb5ca7e22b4fb8c07c49ef85d16c13a2bf44344
font_01_sfnt_off00007fdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FDB 18456 bytes
SHA-256: b7ae3d16bb028351929840db057611194e7c02105e6dbd3e36d0326cc4cd0414