Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e35867d79e2f5f4…

MALICIOUS

PDF

33.0 KB Created: 2021-07-05 17:52:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: f6f4414a22243f69672acf1884367b37 SHA-1: 239a62515cc0c66eda948cef5ac19da9d2614aa3 SHA-256: 0e35867d79e2f5f4a982eba85a449e17671b4a8dc9387502f5e12b8bd3ad92bd
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/coin-master-cards-game-hack PDF link annotation
    • http://perpustakaan.iahntp.ac.id/repository/pubg-uc-60_GM1330123889.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/free-robux-catalog-items_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/minecraft-116-apk-download_GM479516143.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/free-robux-promo-codes-december-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/how-to-hack-rpg-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/free-clothes-giveaway-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/free-trial-builders-club-on-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/roblox-cheat-engine-alternative-apoc-rising_GM431946152.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/how-to-get-a-free-face-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/how-do-i-get-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/roblox-studio-free-download-for-windows_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/try-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/coin-master-strategy_GM406889139.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/dbor-roblox-level-hack-v3rmillion_GM431946152.pdfIn PDF document text
    • https://perpustakaan.iahntp.ac.id/repository/piano-player-cheat-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iahntp.ac.id/repository/free-robux-rbx-points_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_off00002d2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D2B 22232 bytes
SHA-256: 65bacaeb9a094b07294da68b2468cd1d567f77771245b02ed4fb517dba6a1ae5
font_01_sfnt_off00005eb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB9 18008 bytes
SHA-256: 9b1b8022fecd0e698345aa4518e5e5ceb9dfed4ff19bb9e19d156964a7983e20

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