Malicious PDF — malware analysis report

Static analysis result for SHA-256 05cdafa70a9eafcb…

MALICIOUS

PDF

35.6 KB Created: 2021-06-27 01:46:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 177bd2cd29c0d18090e222cdde2e8e64 SHA-1: d662507b4acfa6d30b081188cbe8206833a65572 SHA-256: 05cdafa70a9eafcb21dbceac2353f68810b0d0b5e9e57debb68dbd312e8312da
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/como-hackear-dragon-ball-rage-roblox-2021-game-hack PDF link annotation
    • http://educhina.mn/editor/files/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://educhina.mn/editor/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/get-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
    • http://educhina.mn/editor/files/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdfIn PDF document text
    • http://educhina.mn/editor/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/todays-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/create-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://educhina.mn/editor/files/card-hack-in-coin-master_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/free-roblox-gift-card-uk_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • http://educhina.mn/editor/files/how-to-hack-into-unicorn-dream-queen-12-on-roblox_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/is-there-an-app-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/hack-to-send-gold-cards-on-coin-master_GM406889139.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_off0000319f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x319F 22800 bytes
SHA-256: 1b16d741ac35a98b828228bd10795a1d8b3b9d624b673061c46c3ecc8e62e29d
font_01_sfnt_off000064dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64DC 19484 bytes
SHA-256: e2f4b57f31f22f06c0f3999d58f35ea46d305fa19cd8107dfdfdf9b6c6140693

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