Malicious PDF — malware analysis report

Static analysis result for SHA-256 b04d0e06726576d7…

MALICIOUS

PDF

35.6 KB Created: 2021-06-28 22:57:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 36be2ed6bfb0bcf123d05b4021a33014 SHA-1: dbcf25d6ceae7813d9765efdd93440fd4822478c SHA-256: b04d0e06726576d7d900ba5c6b2df6226dc5fba67b8a654e984c6896476292e4
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/vehicle-simulator-roblox-cheat-scripts-game-hack PDF link annotation
    • http://www.library.gkigadingserpong.org/repository/coin-master-hack-version_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/roblox-r2d-money-hack_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/hack-blox-piece-roblox_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/free-minecraft-survival-server_GM479516143.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/roblox-pizza-game-money-cheat_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/how-to-hack-peoples-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/roblox-10-dollar-gift-card-free_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/coin-master-free-spin-whatsapp-group_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/roblox-money-cheat-codes-rocitizens_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/is-roblox-free-on-nintendo-switch_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/how-to-get-java-minecraft-free_GM479516143.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/minecraft-clipart-free_GM479516143.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/coin-master-free-shield-link_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/minecraft-windows-10-hack-client-2021_GM479516143.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/roblox-hacked-accounts-list_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/robux-cheat-org_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/roblox-hack-no-human-verification-pc_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_off000033bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33BB 22220 bytes
SHA-256: 4be66e4b27905bf104be8334a2ee78634b1c01afd7f36349c1e9358f7e019cc0
font_01_sfnt_off000064e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64E0 19588 bytes
SHA-256: 30c7352c8818c80ed096eff6128faceb7a15cc43520c4f444c52cb03c15accdd

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