Malicious PDF — malware analysis report

Static analysis result for SHA-256 4061f7908ddc9b52…

MALICIOUS

PDF

34.4 KB Created: 2021-07-05 14:04:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 3de5c4fe337a0a897e3a54566ec7e8b0 SHA-1: a632cdb0bfddced12796d282de9b6e5e9e91337c SHA-256: 4061f7908ddc9b5204c7d84a974f4d2720e96c76b5cfd29436b28feb735d0cfe
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 0.9980

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/406889139/free-spins-on-coin-master-cheat-game-hack PDF link annotation
    • http://perpus.i2s-learning.com/repository/why-free-robux-scams-suck_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/roblox-com-r_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/hacker-egg-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/tiktok-free-followers-hack_GM835599320.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-recover-your-hacked-roblox-account_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-robux-pins_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/more-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/hacks-roblox-xonnek_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/case-opener-hack-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/mc-update_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-free-download-windows-10_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-money-codes-2021-july_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-golden-cards-hack_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-free-robux-fast-and-easy-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-clothing-apps-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-hack-xyz-download-free_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-spins-for-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-animation-roblox_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_off00003094.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3094 22856 bytes
SHA-256: 801912beba24b041675ae9f12208c3a7adb1791ba0bddb7afeb6b6fcb992dbc8
font_01_sfnt_off000063c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63C6 18340 bytes
SHA-256: 08b0fb1345edf1632942f09adf46a0efdd88eab44e78d1010021a2ae91dc1f3f

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