Malicious PDF — malware analysis report

Static analysis result for SHA-256 455439f5065731c0…

MALICIOUS

PDF

34.9 KB Created: 2021-06-26 11:07:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 97c86cf6c9723ecf0291ba96ecffad11 SHA-1: 22c8342b55d78380a69ba7c6e33f5cf4bab7d8c6 SHA-256: 455439f5065731c0bb4e91f4e069ab3b25d002a9a661165d1f97c8942f47194c
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/cheat-code-super-city-roblox-game-hack PDF link annotation
    • http://library.ulb.ac.id/repository/how-to-make-a-roblox-scam-website-free_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/robux-generator-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/fb-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/claim-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/make-free-robux_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-hack-free-spins_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-toolbox-hack_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/coin-master-hacks-for-cards_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/minecraft-online-free-no-download_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/free-spin-online-tool-coin-master_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-hacks-for-pc-2021-download-mods_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-free-spins-today-new_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-hack-pc-download_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-hack-iosgods_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-roblox-plaza-money_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-free-spins-today-39_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/create-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30B5 22200 bytes
SHA-256: 5387c628ab6bc78e49bafc26db0d5b22dd724d74062388fa30b1059838d35c5f
font_01_sfnt_off000061e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E1 19548 bytes
SHA-256: ef9a0ef359aa11f4d27055fd8becb86040dc509ceb67f4a6e1588cc8efefc76c

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