Malicious PDF — malware analysis report

Static analysis result for SHA-256 066ea875a9acb956…

MALICIOUS

PDF

32.7 KB Created: 2021-06-27 12:34:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: d96e9f69c3b4eda33c127c544538079c SHA-1: 09023d470a7b43d60973a7a6b9425323c24ab2c6 SHA-256: 066ea875a9acb956eba9949c7742d228b8cec42023e6c727317746d1af9ca49d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a 'free Robux hack' and includes a direct link to a suspicious URL, likely intended to download a malicious payload. The ML classifier also flagged this PDF as malicious. No scripts were extracted, but the presence of external links and the nature of the lure strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/descargar-free-robux-hack-game-hack PDF link annotation
    • https://htdvn.com/public/upload/files/roblox-tix-generator_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/roblox-cheat-engine-cheat-table-executor_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/roblox-ice-cream-simulator-hack_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/roblox-free-printables_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-mods-for-coin-master_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/tiktok-free-speech_GM835599320.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/robux-match_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/ben-10-universal-showdown-roblox-cheats_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/minecraft-116-free-download_GM479516143.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-item-going-limited-in-roblox_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/how-to-get-free-robux-no-glitch_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-robux-no-human-verification-2021_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
font_00_sfnt_off000029ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29EC 22188 bytes
SHA-256: d1a80fef394341ddeb839cfd7bddc6786a28bd1c37e712956a0c91b4a9fe2ace
font_01_sfnt_off00005b35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B35 19056 bytes
SHA-256: fb2840c070191548f8f31493832f9dc46e99c35a7715fa5dcc9d6ddb87393b24

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