Malicious PDF — malware analysis report

Static analysis result for SHA-256 60fe45941702bd58…

MALICIOUS

PDF

49.7 KB Created: 2021-06-03 20:25:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 861aa44bc8f113754fc2476b698fc042 SHA-1: 8e18aa8c49399d4853c24debdc01ef17c9b965a3 SHA-256: 60fe45941702bd587586bd409d96410f04a6cf7cfa32892f4bc19a427729a026
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9861

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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.online/app/431946152/roblox-promo-codes-2021-robux-game-hack PDF link annotation
    • http://www.library.umbjm.ac.id/repository/free-minecraft-wallpaper_GM479516143.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/free-roblox-animations_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/weird-roblox_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/pokeballs-in-pokemon-go-free_GM1094591345.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/get-roebucks-com_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/how-to-change-your-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/how-to-start-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/lazy-blocks-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/free-robux-com_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/coin-master-spin-link-free_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/free-robux-mod_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/is-coin-master-hack-safe_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/is-every-game-on-roblox-free_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/blox-world-free-robux_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
stream_004_off000050e9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50E9 34416 bytes
SHA-256: abe9b0b0d58043dcbed797a8fe9a9b5202bc410195a11f2fae9fb006f95ca5ef
font_01_sfnt_off00009e02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E02 18912 bytes
SHA-256: 78e5a4f925f7a7099a01314b73c68b79f9c6154f744724e21f80ba84a8cb6293

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