Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6046f550088faa6…

MALICIOUS

PDF

35.7 KB Created: 2021-06-27 10:15:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 8a846d70cbfd4ea49b9fb2a76df705c4 SHA-1: 067e6d8900acfca3f3322659f18275692c00ed69 SHA-256: d6046f550088faa6c21a17fa6e899dd2025b9e8bdd7012bf1152937fefeb8363
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/game-guardian-roblox-speed-hack-game-hack PDF link annotation
    • http://library.feb.unila.ac.id/rfeb/repository/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-get-free-robux-from-bloxmarket_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/coin-game_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/coin-master-hack-iosgods_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-get-free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/archery-master-3d-unlimited-coins-hack_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/coin-master-hack-apk-android-1_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/krnl-download_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/coin-master-blogspot-links_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/coin-master-hack-spin-ios_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-hack-apk-pc_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/win-free-robux_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-render-roblox_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/freespinandcoin-blogspot_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-get-free-mods-in-minecraft_GM479516143.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-robux-app-store_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/free-robux-glitch_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_off0000321c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x321C 22792 bytes
SHA-256: c048dbcd84bd3f893f2a7c8c8d6f292aacce877303ac2ae64f1022959e8422e1
font_01_sfnt_off00006515.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6515 19524 bytes
SHA-256: a910cd580814a6b9290622429878dc516175beb1f0ab32de4163e9aa9d0edc42

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