Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dd6cb6407b831b8…

MALICIOUS

PDF

34.3 KB Created: 2021-07-05 01:56:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 68231757cb24f699671915ee2eab4d3e SHA-1: db8c1e82c9cc17165b6c29108bc2285ba7662356 SHA-256: 9dd6cb6407b831b8f32c7d5bb6e1e7199edfa9623654614300ae476e11fd26c1
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/431946152/robux-adder-game-hack PDF link annotation
    • http://library.itekes-bali.ac.id/repository/can-you-hack-a-roblox-account_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/redeem-code-roblox-2021-free_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-roblox-roblox-games_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/hacking-into-robloxs-account_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/haktuts-coin-master-today_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-women-free-hair_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/1x1x1x1-roblox-id_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-assassin-knife-hack-spawner_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/minecraft-free-download-linux_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/easy-way-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-coins-and-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-hack-2021-generator_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/como-conseguir-robux-gratis-2021-sin-hacks_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/www-roblox-games-free-com_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-get-free-robux-2021-july_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-prison-life-v20-infinite-ammo-hack-2021_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-unlimited-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-free-spins_GM406889139.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_off00002f59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F59 22668 bytes
SHA-256: 1d1214cfc2c32770801c5cdc83b0ade0ad1fb1766f17966dce514568c99bbcd7
font_01_sfnt_off000061f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F4 18728 bytes
SHA-256: 3b2fbc11f7fc4968e007f9e7fb47eadfc314f2fb387d3ffbdf3f14f8961f86d5

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