Malicious PDF — malware analysis report

Static analysis result for SHA-256 1449accc7faaed9e…

MALICIOUS

PDF

42.8 KB Created: 2021-05-17 03:17:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: b8d946fc0a8fc3f64dfd012e3a931846 SHA-1: 47398a860b8fc729418b0bbf7a914f94fcea1a14 SHA-256: 1449accc7faaed9ed67024f6209e69c72e72c1435ed9db7ba56fae363c160a89
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 0.9971

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.xyz/app/431946152/body-roblox-game-hack PDF link annotation
    • https://www.sarsen.net/uploads/files/files/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/mangocheats-com-hack-coin-master-cheat_GM406889139.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/robuxmatchcon_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/minecraft-free-education_GM479516143.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/roblox-online-free_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/get-free-coin-master_GM406889139.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/how-to-get-gold-cards-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/coin-master-free-spin-and-coin-link-today_GM406889139.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • https://www.sarsen.net/uploads/files/files/how-to-get-free-coins-for-coin-master_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_off00004a0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A0B 25268 bytes
SHA-256: 4f1bcb030fc3c5c05f23ea671df1c7eb032985509076cf1b1345bfb184549cc5
font_01_sfnt_off00008507.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8507 18140 bytes
SHA-256: 5c429d7d14e112022b2be879a8be260656d3ec767f5300b052428d03df27e3b3

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