Malicious PDF — malware analysis report

Static analysis result for SHA-256 9576320b2bad8664…

MALICIOUS

PDF

43.3 KB Created: 2021-05-13 01:01:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 6e491625df2df351db450a178438ae97 SHA-1: 6c017715ff24d44500a22c64ff0d3e59a9600317 SHA-256: 9576320b2bad8664ad64c9efa90bcb967da55afb1258ee3f95274f54f4b1bca7
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are disguised as game hacks or generators for popular games like Roblox and Minecraft. These links, such as 'https://netcdn.xyz/app/431946152/how-to-get-free-robux-without-human-verification-2021-game-hack', are likely used to redirect users to malicious sites for phishing or malware distribution. The presence of a 'game hack redirector' heuristic and ML classification further supports the malicious nature of this document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 5

  • 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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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.xyz/app/431946152/how-to-get-free-robux-without-human-verification-2021-game-hack PDF link annotation
    • http://183.91.70.11/repository/roblox-free-pants_GM431946152.pdfPDF link annotation
    • http://183.91.70.11/repository/minecraft-creative-mode-free_GM479516143.pdfIn PDF document text
    • http://183.91.70.11/repository/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://183.91.70.11/repository/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/hack-coin-master-nyc_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://183.91.70.11/repository/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/como-hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/free-robux-hacks-no-verification_GM431946152.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
stream_003_off00004474.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4474 26792 bytes
SHA-256: e64a3ef54a6edf7ae6d023c611eb6943a3e6813b9bf20d7720203405351e169b
font_01_sfnt_off0000824c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x824C 19792 bytes
SHA-256: 2fcc096d095577e17bc813bca386b7e419c64e6aba5a370ab2124621dd0af6c5

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