Malicious PDF — malware analysis report

Static analysis result for SHA-256 06468ab80ad30dca…

MALICIOUS

PDF

35.1 KB Created: 2021-07-06 05:02:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 15f62dd59a9e23eb8cee433e38c39788 SHA-1: dad4ae37594ceacfb0febac0b57201a4efc9b08d SHA-256: 06468ab80ad30dca712922836affee6541bb23a0f9b672c540d019d23c18458c
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.tw/app/406889139/daily-spin-coin-master-free-game-hack PDF link annotation
    • http://library.ulb.ac.id/repository/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/guess-the-song-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-tk-hack_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-get-free-robux-109_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-highschool-money-hack-cheat-engine_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-hack-355_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/gratis-robux-hack_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/tiktok-like-bot-free_GM835599320.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-hack-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/como-conseguir-robux-gratis-sin-hacks-pato_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/jailbrak-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-robux-hack-website_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-roblox-games-for-guest_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-get-pants-for-free-on-roblox-without-bc_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-get-free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-get-free-robux-on-laptop-easy-2021_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/arsenal-hacks-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-account-roblox-ro-ghoul_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
stream_002_off000031b5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31B5 23092 bytes
SHA-256: 3a0ecc5a2209709d3f1abecfeb96fec5ad179642f835b0aac0b4322c8ac83722
font_01_sfnt_off000065d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65D9 18596 bytes
SHA-256: dd2b15a0c253a0bf9d7b51e6ea282b6de13fefca925d00b562789186b018f21c

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