Malicious PDF — malware analysis report

Static analysis result for SHA-256 80187f74579568bb…

MALICIOUS

PDF

44.0 KB Created: 2021-06-13 23:17:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 86b5863c3ef46bdf30a54573bac42f03 SHA-1: 11516fc5a2c00f5c65267f9583c56cee4fd7c657 SHA-256: 80187f74579568bb84d0c6e4e26a0bbd29f4dc8e2f6c4c79b29b57dd87feafaa
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 0.9969

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/money-hack-roblox-2021-february-game-hack PDF link annotation
    • http://perpustakaan.iahntp.ac.id/repository/roblox-hack-hay-day_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/freespinandcoinblogspot-com-2021-11-coinmasterfreespins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/coin-master-free-spins-16-04-19_GM406889139.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/cheat-codes-for-knives-in-murder-mystery-2-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/free-roblox-gift-card-codes-generator-2021-may_GM431946152.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/lego-roblox-hacking_GM431946152.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/how-to-get-free-faces-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/how-to-get-free-robux-hp-notebook_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/hack-roblox-origin_GM431946152.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/roblox-hack-ejector_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/how-to-get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/robux-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/free-tedashii-roblox-id_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/coin-master-free-cards-link-2021_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_off000048dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48DC 26488 bytes
SHA-256: aa3bd6eaa5d130494b667957b97d997d129af8dd2f7fc9bc978e7da2d619a9b8
font_01_sfnt_off0000868d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x868D 19264 bytes
SHA-256: 26bd3d2d2fbab347ea529376bd6569110d2678afc028a06511fdf65f5f878779

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