Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ba8721b1f73bc9f…

MALICIOUS

PDF

33.1 KB Created: 2021-06-30 09:10:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 58c4397d3588188362946fb68c12504b SHA-1: 5fce3271b963256a961ff1a5882806135a3b71ae SHA-256: 1ba8721b1f73bc9fb87d90eddb2bf606531b68a99176d652d963b5acc6f604ab
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 0.9824

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-hack-players-download-game-hack PDF link annotation
    • https://www.xenonsvjetla.com/files/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/pubg-uc-price-list_GM1330123889.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/default-fortnite-roblox-tshirt-free_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-roblox-followers-2021_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/cheat-roblox-one-piece-wrath_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/como-hackear-cuentas-de-roblox-sin-contrasea_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • http://xenonsvjetla.com/files/roblox-hack-generate-99-999-robux_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-tiktok-likes-no-human-verification-or-download_GM835599320.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/can-i-have-robux_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/roblox-granny-speed-hack_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-robux-working_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/wwwfree-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-to-get-free-roblox_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_off00002a75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A75 22020 bytes
SHA-256: dfe2541956c716054096a31a3b2b3bb960e119cf0c0f87388b392607e76cda60
font_01_sfnt_off00005aee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AEE 19496 bytes
SHA-256: 2c3853a1e791fbc805c0b65ae7dfe24f086f45f95ab78c4ed7426a96c6c3d52e

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