Malicious PDF — malware analysis report

Static analysis result for SHA-256 935910f907e1c6af…

MALICIOUS

PDF

35.0 KB Created: 2021-07-04 06:02:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: d809694fd809cb15bbda1a9a1d2a1ccf SHA-1: 8c03a572a85b6da9dfc104684d9d2c7a3c0bef08 SHA-256: 935910f907e1c6afba606d220448d813d45825ad18d6553b24751b7ce94ebe1b
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/coin-master-gameplay-game-hack PDF link annotation
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/tiktok-free-promotion_GM835599320.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/coin-master-hack-2021-apk-download_GM406889139.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/roblox-free-radio_GM431946152.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/dominus-roblox-free_GM431946152.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/buy-tiktok-followers-free_GM835599320.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/free-coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/free-coins-on-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/was-minecraft-ever-free_GM479516143.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/op-rewards-robux_GM431946152.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/open-coin-master_GM406889139.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/is-tiktok-free_GM835599320.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/coin-master-hack-link-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_off00003388.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3388 22420 bytes
SHA-256: 7846020c22c0782eabbecad4207379adf0cd2bf9b0497b2fdd11758568b79e03
font_01_sfnt_off00006587.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6587 18524 bytes
SHA-256: 16b9cb38bcb2a142b34ef46ce62b1942e172e3ddddc78505f18b000df75c2c6a

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