Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6f07f0849cd08fc…

MALICIOUS

PDF

34.3 KB Created: 2021-07-03 20:12:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e8f3849fd5b154b938f92582aec5777e SHA-1: 0061da43a96366e629bb7fdf88902abe6ca5d22b SHA-256: b6f07f0849cd08fcb0d1162dfc88102bcf9e0755bb51a6e06611758860955564
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'Free Robux For Kids' and game hacks, directly linking to a suspicious URL. This indicates a social engineering tactic to trick users into visiting a potentially malicious site. The ML classifier also flagged this PDF as malicious with high confidence.

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/free-robux-for-kids-game-hack PDF link annotation
    • https://www.e-learning-min1berau.com/__statics/gudangsoal/files/roblox-all-games-hack_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min1berau.com/__statics/gudangsoal/files/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
    • https://www.e-learning-min1berau.com/__statics/gudangsoal/files/earn-robux-online_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min1berau.com/__statics/gudangsoal/files/coin-master-free-spins-glitch_GM406889139.pdfIn PDF document text
    • https://www.e-learning-min1berau.com/__statics/gudangsoal/files/mod-menu-in-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min1berau.com/__statics/gudangsoal/files/roblox-fan-group-simulator-cheat_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min1berau.com/__statics/gudangsoal/files/roblox-hack-prison-royale_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min1berau.com/__statics/gudangsoal/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.e-learning-min1berau.com/__statics/gudangsoal/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min1berau.com/__statics/gudangsoal/files/cheat-buddy-roblox-download_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min1berau.com/__statics/gudangsoal/files/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min1berau.com/__statics/gudangsoal/files/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • https://www.e-learning-min1berau.com/__statics/gudangsoal/files/free-robux-hackfor-any-decice_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min1berau.com/__statics/gudangsoal/files/free-robux-scam-game_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min1berau.com/__statics/gudangsoal/files/free-roblox-mermaid-games_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min1berau.com/__statics/gudangsoal/files/free-roblox-generator-2021_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min1berau.com/__statics/gudangsoal/files/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min1berau.com/__statics/gudangsoal/files/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min1berau.com/__statics/gudangsoal/files/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min1berau.com/__statics/gudangsoal/files/roblox-cheat-robux-generator_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_off00002f58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F58 22360 bytes
SHA-256: 9fdeeff06e9ca85cd1e8ccf64fdc9af5f922e606e1d7e5872d0b5e2731edf30e
font_01_sfnt_off00006138.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6138 19012 bytes
SHA-256: afbbc6672e5e67d3d08182cb82f0154e2527ac7a9675429207b3e1307e5db0cb

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