Malicious PDF — malware analysis report

Static analysis result for SHA-256 aee93fbe5ef655f9…

MALICIOUS

PDF

34.5 KB Created: 2021-06-28 08:27:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 7b36566f72edc13bcf085735b410c27a SHA-1: 0a1c6db38df9d993e383914d234b50bb70c7de9d SHA-256: aee93fbe5ef655f93af35c1cab2c868c12d7723409de7da54ff852f536d7fc6c
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/how-to-get-free-robux-on-roblox-xbox-one-2021-game-hack PDF link annotation
    • http://perpus.i2s-learning.com/repository/free-roblox-app-for-ipad_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/how-to-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-do-you-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-hack-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-free-100k-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-hack-ios-10_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/2021-free-robux-daily-com_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/best-free-buildings-in-roblox-studio_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/robux-free-promo-codes_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/roblox-controversy_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-spins-for-coin-master-that-work_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/actual-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/crazy-roblox-hack_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_off000030ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30CE 21672 bytes
SHA-256: 55022eb8649415ea635985f3ff3bc9a447c82eba652d6eeaad8582919a73e5f1
font_01_sfnt_off00006059.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6059 19460 bytes
SHA-256: 4b77385e4ec472e9f85d3f79032d7cc3e6687950904efa80f3a7494c52520deb

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