Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ba56a550d98f121…

MALICIOUS

PDF

35.4 KB Created: 2021-07-04 02:41:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2690ca7586a3946061f9161b197c65e2 SHA-1: ed1899fb083bcf37d0ebb0c0e5323317c4094577 SHA-256: 8ba56a550d98f1213000c7c11910fc78015e30a659ff153d44b2a5c741705f22
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 0.9980

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 http://netcdn.tw/app/431946152/mobihack-net-roblox-hack-game-hack PDF link annotation
    • https://lib.bunghatta.ac.id/app/repository/coin-master-20-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/how-to-hack-granny-roblox_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-booga-hack_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/cheat-engine-table-for-roblox_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-candy-id-roblox_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-raf-free_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/how-to-play-minion-free-tag-roblox_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/wie-hacke-ich-mir-robux_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-boxing-game-hack_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-script-executor-roblox-no-virus_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-robux-codes-adopt-me_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/minecraft-noob-vs-pro-vs-hacker-vs-noob-roblox_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/how-to-get-free-robux-on-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/ghost-walk-hack-roblox_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/script-for-have-gamepass-free-roblox-pastebin_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/hack-roblox-2021-jail-bteak_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
font_00_sfnt_off000031c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31C9 22724 bytes
SHA-256: 19ce94c25bf7df24884faf85a481deaa3e746952c7c3279b81032b566e61e5ae
font_01_sfnt_off000064ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64BA 19244 bytes
SHA-256: 88e598bc89789b8ac21b9f126080391bbc9d3fa977fc33123edec0983ecad616

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