Malicious PDF — malware analysis report

Static analysis result for SHA-256 93bedd5cf7fac365…

MALICIOUS

PDF

46.8 KB Created: 2021-06-10 13:46:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 34f821f336e46e721815a3542a417515 SHA-1: 2e68cc3dc954cd23f2aeb65abc7dd95c7174d022 SHA-256: 93bedd5cf7fac3651a2634c271a1d12b9903eaf574648b2475ce5f9a05819a66
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 0.9749

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.tw/app/431946152/easy-robux-cheat-game-hack PDF link annotation
    • http://bressanassessoria.com.br/images/ro-ghoul-script_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-robux-safe_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/coin-master-free-spins-and-coins-hack_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-robux-legit_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/roblox-free-v-bucks_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/rape-simulator_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-money-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-spins-on-coin-master-app_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/how-to-get-free-robux-real-life_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/get-me-free-robux_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/minecraft-bedrock-edition-free-with-java_GM479516143.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-tiktok-fans-without-verification_GM835599320.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E63 24392 bytes
SHA-256: 129c6104d92bc6b6a27739215a2a9e65a50e4bb087d62b88239f9c610e64ef78
font_01_sfnt_off0000861e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x861E 3956 bytes
SHA-256: 6b42b100c087684b7e7174889ff2e54e53e718a934105f9b509febff96895dce
font_02_sfnt_off00009317.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9317 18528 bytes
SHA-256: 783587b515a7f99b528ed61b58f54d750b54bfba1c249aa5164290783c47e99e

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