Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc654b40b98e97f1…

MALICIOUS

PDF

34.5 KB Created: 2021-06-19 20:46:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 17681865e7be07e724647b59ca828865 SHA-1: 7ac0764385e43ac1150690a46ad5e7bb6a7648eb SHA-256: bc654b40b98e97f1e7a9b096a45a7987daeca6af026060b081add75efbf3707f
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, with one identified as a malicious redirector. The document body and embedded URLs suggest a lure for game-related cheats or hacks, aiming to trick users into downloading malicious files. The presence of a visual download button heuristic further supports this phishing-like attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/robot.inc-roblox-hack-game-hack In PDF document text
    • http://nsktu.ac.in/ckfinder/userfiles/files/free-tiktok-accounts_GM835599320.pdfIn PDF document text
    • http://nsktu.ac.in/ckfinder/userfiles/files/coin-master-heaven-free-spins-link_GM406889139.pdfIn PDF document text
    • http://nsktu.ac.in/ckfinder/userfiles/files/free-robux-obby-limited-time-only_GM431946152.pdfIn PDF document text
    • http://nsktu.ac.in/ckfinder/userfiles/files/pubg-uc-shop-qatar_GM1330123889.pdfIn PDF document text
    • http://nsktu.ac.in/ckfinder/userfiles/files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://nsktu.ac.in/ckfinder/userfiles/files/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
    • http://nsktu.ac.in/ckfinder/userfiles/files/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • http://nsktu.ac.in/ckfinder/userfiles/files/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://nsktu.ac.in/ckfinder/userfiles/files/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
    • http://nsktu.ac.in/ckfinder/userfiles/files/free-tiktok-likes-trial_GM835599320.pdfIn PDF document text
    • http://nsktu.ac.in/ckfinder/userfiles/files/coin-blogspot_GM406889139.pdfIn PDF document text
    • http://nsktu.ac.in/ckfinder/userfiles/files/20210-robux_GM431946152.pdfIn PDF document text
    • http://nsktu.ac.in/ckfinder/userfiles/files/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://nsktu.ac.in/ckfinder/userfiles/files/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • http://nsktu.ac.in/ckfinder/userfiles/files/coin-master-hack-dot-xyz_GM406889139.pdfIn PDF document text
    • http://nsktu.ac.in/ckfinder/userfiles/files/cheats-for-roblox-jailbreak-money_GM431946152.pdfIn PDF document text
    • http://nsktu.ac.in/ckfinder/userfiles/files/coin-master-free-2021_GM406889139.pdfIn PDF document text
    • http://nsktu.ac.in/ckfinder/userfiles/files/how-to-hack-old-rb-world-roblox_GM431946152.pdfIn PDF document text
    • http://nsktu.ac.in/ckfinder/userfiles/files/how-to-get-free-robux-without-having-to-download-anything_GM431946152.pdfIn PDF document text
    • http://nsktu.ac.in/ckfinder/userfiles/files/how-to-trade-on-roblox-for-free_GM431946152.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
font_00_sfnt_off00002ffd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FFD 22396 bytes
SHA-256: c57494600ba68c760cd5542575df41267f296110f4e18617ec460069f90e902c
font_01_sfnt_off0000622d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x622D 18944 bytes
SHA-256: 7ffd9650ded373b2b570c24fa1692b2524c661e5fe712f6cfe629f7dbe2e0c24

Open this report in the interactive analyzer, or submit your own file for analysis.