Malicious PDF — malware analysis report

Static analysis result for SHA-256 9070901c3cf32c31…

MALICIOUS

PDF

52.2 KB Created: 2021-06-04 00:37:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: f7f0beeb3de43710bb7e9296b6eee0c6 SHA-1: c3763964d956e120c822b4dac72d1df18d94a5ad SHA-256: 9070901c3cf32c3130f31e4742ba231192c770248cdca07f2b6629680d9c4c91
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 0.9657

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 https://netcdn.online/app/431946152/free-robux-codes-no-verification-2021-game-hack PDF link annotation
    • http://lib.fekon.untad.ac.id/repository/free-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/minecraft-free-minecraft_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/pokemon-go-free-games-online_GM1094591345.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-hack-tool-generator_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/microsoft-rewards-robux_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/play-full-version-of-minecraft-for-free-no-download_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-free-link-facebook_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-get-free-pet-snacks-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-spin-link-today_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/corn-master_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/coin-master-hack-mod_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-roblox-passwords_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005129.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5129 26688 bytes
SHA-256: c722fc31054a29f711599a50e0411d4c61bd9bdc9e5cc14fbde0ef3fdcf1c0c2
font_01_sfnt_off00008cd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CD1 3884 bytes
SHA-256: 64ea6bfd232c3abde76d8b86727203bfa3f935a5783cd0c1f642cf6d3fb42b29
font_02_sfnt_off00009974.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9974 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_03_sfnt_off0000a61c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA61C 19176 bytes
SHA-256: db1e34f64d78c47646929d75ef8e7d82dfccacc985d29653851fea35b3c0bf96

Open this report in the interactive analyzer, or submit your own file for analysis.