Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6485411299a1d4c…

MALICIOUS

PDF

36.2 KB Created: 2021-06-29 12:37:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 3ebabee1481c163a9fb87f04e5613fa7 SHA-1: c894281c349b9cbacfed27b902b89d7be267814f SHA-256: d6485411299a1d4c892120075421fa8dd80f0bca54fca2634f17af94a35fa2de
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a heuristic firing for a malicious redirector link pointing to a site offering game hacks. The document body also contains the same URL, suggesting a lure to download potentially malicious content. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the presence of a malicious link and the document's theme indicate a phishing or malware distribution attempt.

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/how-to-hack-roblox-accounts-with-cheat-engine-6.2-2021-game-hack In PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/roblox-studio-free-download-10_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/vasilis-roblox-hack-exe_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/tiktok-free-view-iphone-apk_GM835599320.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/how-to-hack-robux-into-your-account_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/firestone-training-map-free-model-leaked-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/get-free-robux-on-roblox-2021-november_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/counter-blox-roblox-offensive-hack-download_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/admin-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/free-gift-card-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/get-free-robux-by-inspect_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/how-to-get-minecraft-for-free-on-xbox-360_GM479516143.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/roblox-jump-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/free-robux-card-codes-live_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/how-to-get-free-robux-joshy_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/https-www-roblox-com-free-download_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/hacking-gui-roblox-pastebin_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_off0000338c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x338C 22320 bytes
SHA-256: 04fcd0a743a10f674a2c9c29cab786da32f3621bb38eaf43608b91a2655cef50
font_01_sfnt_off00006532.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6532 20184 bytes
SHA-256: 8287177200f6930e44f85156388adb4c35a051edb17c97f63ecfad5d07928c2e