Malicious PDF — malware analysis report

Static analysis result for SHA-256 19382dc027218303…

MALICIOUS

PDF

34.6 KB Created: 2021-06-25 11:53:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: fc7174b0b56b72126426e2b8fc506d02 SHA-1: a9930520ecd9456d6d8c11bd1c04f3cfafc1fc6d SHA-256: 19382dc02721830371ee0507adaea06b267c21ec6b0f069e93f924bc54dacbaa
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a social engineering lure related to "game hacks" to entice users to click on embedded links. The primary link, http://netcdn.co/app/431946152/how-to-hack-roblox-for-beginners-game-hack, redirects to a malicious site, likely to download a secondary payload or conduct further phishing. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate a malicious intent to deceive the user.

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/how-to-hack-roblox-for-beginners-game-hack PDF link annotation
    • http://www.vista-design.hr/files/robux-offers_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/roblox-games-for-free-unblocked_GM431946152.pdfIn PDF document text
    • https://www.vista-design.hr/files/how-to-change-roblox-username-for-free_GM431946152.pdfIn PDF document text
    • https://www.vista-design.hr/files/hack-coin-master-for-android_GM406889139.pdfIn PDF document text
    • https://www.vista-design.hr/files/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdfIn PDF document text
    • http://www.vista-design.hr/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://www.vista-design.hr/files/robloxfun-com-robux_GM431946152.pdfIn PDF document text
    • https://www.vista-design.hr/files/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://www.vista-design.hr/files/robux-2021_GM431946152.pdfIn PDF document text
    • https://www.vista-design.hr/files/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
    • http://www.vista-design.hr/files/free-coin-master-links_GM406889139.pdfIn PDF document text
    • https://www.vista-design.hr/files/free-roblox-girl-clothes_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/wurst_GM479516143.pdfIn PDF document text
    • https://www.vista-design.hr/files/mistplay-robux_GM431946152.pdfIn PDF document text
    • https://www.vista-design.hr/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.vista-design.hr/files/free-mods-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://www.vista-design.hr/files/minecraft-pocket-edition-free-apk_GM479516143.pdfIn PDF document text
    • http://www.vista-design.hr/files/free-spin-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.vista-design.hr/files/how-to-robux_GM431946152.pdfIn PDF document text
    • https://www.vista-design.hr/files/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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_off00002ff0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FF0 22436 bytes
SHA-256: 0ca0864b0527dab4b8e80c70fff1efaccfd201a41d89b7bb1307153ff1f05476
font_01_sfnt_off00006215.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6215 19104 bytes
SHA-256: 15c16384fe9761a86d5dcbd928ce0ce07da57dc8e993b5e3adcb347b678964de

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