Malicious PDF — malware analysis report

Static analysis result for SHA-256 226bcd4583cbae18…

MALICIOUS

PDF

34.5 KB Created: 2021-07-05 10:05:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 7bc468d64dbe2df9f354ebf7b2d0ff76 SHA-1: 3b1d4a1615be27ce42d82bc21805a0918b7cce8e SHA-256: 226bcd4583cbae187e756fa4bf7d3d91f69885472b09b1888a5519f482c58af8
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/479516143/minecraft-pe-015-0-apk-free-download-game-hack PDF link annotation
    • http://stitqi.ac.id/website//repository/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/get-free-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/are-there-any-roblox-games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-hack-software-download_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-gamepasses-roblox-cheat-engine_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-get-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-200-spin-link_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/minecraft-pe_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/fb-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-minecraft-maps-pe_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/tiktok-free-view-iphone-ios-13_GM835599320.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/aternos-free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/robux-prices_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/roblox-system_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_off00002feb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FEB 22032 bytes
SHA-256: 5c2ac81135fe27adc9cbf3d7b72546d8c765133329fc4d0f81e47949215561a6
font_01_sfnt_off0000608f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x608F 19488 bytes
SHA-256: 5fbcc03ade207b067edfd8a0e3d4a08d604425caf55cf27b07311d1a51fe3a21

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