Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a981b753687deb6…

MALICIOUS

PDF

44.4 KB Created: 2021-05-16 13:40:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: bfb086902b9fe1dc595997b3a38aa8b7 SHA-1: b69133b750e3edd5a53006f484fcaa45bc790b20 SHA-256: 6a981b753687deb6b9c9676cd6e99fff25e38834d79aa6cf33e68a60d851a21d
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 https://netcdn.xyz/app/479516143/minecraft-svg-images-free-game-hack PDF link annotation
    • https://ibelive.tw/image/data/files/coin-master-game-hunters-club_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-free-fire_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-coin-master-gold-cards_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/how-to-get-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-ios-hack-download_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-free-spin-and-coin-link-today_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-website_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-robux-mod_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/robux-rewards_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-hack-without-root_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
stream_003_off00004a24.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A24 29140 bytes
SHA-256: ddc6b233cc0f05ab2defafd85ed7e3f3cc07b9dfe592afb801ca588c769a52cd
font_01_sfnt_off00008b7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B7F 18232 bytes
SHA-256: a09b643334d2e6be4f3f41432578bfd2746235ab347d952591db22e0a7ac2c60

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