Malicious PDF — malware analysis report

Static analysis result for SHA-256 86be9c0d3b75ccb7…

MALICIOUS

PDF

34.0 KB Created: 2021-07-06 01:43:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e909bca3e1f87211093cf33178553739 SHA-1: 1ff71d95c94672936bb7d2954f0fe67d3611d969 SHA-256: 86be9c0d3b75ccb771d248f9ce7c279aeb26c83ff060f5b0aac4c02c3a8660f0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic indicating it links to a 'free generator / game hack' redirector, specifically http://netcdn.tw/app/431946152/can-you-get-robux-for-free-game-hack. The document body reinforces this lure by mentioning 'Can You Get Robux For Free'. This pattern suggests a social engineering attack designed to trick users into visiting a malicious site, likely to download malware or engage in credential harvesting. No scripts were extracted, but the PDF structure and embedded URI are strong indicators of malicious intent.

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.tw/app/431946152/can-you-get-robux-for-free-game-hack PDF link annotation
    • http://digilib.unla.ac.id/repository/are-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-hack-into-anyones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/works-how-to-get-free-robux-2021-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/robux-gratis_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-100-spin-hack_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/roblox-hack-apk-android-oyun-club_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/hack-coin-master-ios-download_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-roblox-executor-no-key_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-do-you-get-robux-for-free-roblox-youtube_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/roblox-robux-generator_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/pokemon-go-free-100-iv-coordinates_GM1094591345.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/robux-claimer_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-coins-coin-master-2021_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_off00002ebe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EBE 22144 bytes
SHA-256: 88eebf7c85f7524622a63f30c1ee828179e46150fe475e4938dbd41964d0f300
font_01_sfnt_off00005fd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD9 18984 bytes
SHA-256: 2c6f447800a96913986af3bd62aa8a594d802346a7a39b4742ef2d084cdb3097

Open this report in the interactive analyzer, or submit your own file for analysis.