Malicious PDF — malware analysis report

Static analysis result for SHA-256 29fac24c20eff766…

MALICIOUS

PDF

34.2 KB Created: 2021-06-20 04:05:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 9f9184489f651a2b211c198ca78ee982 SHA-1: 07f4382f395b050d9abbc05846176c681947b7c0 SHA-256: 29fac24c20eff766c9bd8ba2f1898e26a2236f3556b09c2d46f235adc0545671
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.co/app/431946152/roblox-tuto-robux-no-hack-game-hack PDF link annotation
    • https://library.fdk.ac.id/repository/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/cute-free-roblox-clothes_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/roblox-how-to-get-25-robux-for-free_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-get-free-coins-on-assassin-roblox_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/minecraft-free-download-windows_GM479516143.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/roblox-kill-script-hack_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/roblox-windows-download-free_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/como-conseguir-monedas-infinitas-y-tiradas-de-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-hack-all-the-cargo-crates-in-roblox_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/roblox-hack-tool-download_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-robux-picture_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/roblox-hack-tool-2021-download_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/on-roblox-how-to-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-get-free-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-hack-pro-gamers-com_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-spin-rewards_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-hack-in-roblox-prison-life_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_off00002eaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EAA 22536 bytes
SHA-256: be1f4b349bf06eb7b8bca859845865b0094ab9694d499506701bb9951596afd1
font_01_sfnt_off000060fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60FD 18900 bytes
SHA-256: 3b6a5e8d13a262faf89d744487e3205418db76dc6f781f50e2db4dff2ff0e1d5

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