Malicious PDF — malware analysis report

Static analysis result for SHA-256 d390671c3000b235…

MALICIOUS

PDF

36.0 KB Created: 2021-06-28 17:53:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: b8fcc7a4698dda68df9c556615f0de35 SHA-1: 3d874e25eeb1c5303ef66473bd9dfe17ee0e39af SHA-256: d390671c3000b23576b58f1ad2a28c1588169e5dad1966be116a24a6be32c101
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.co/app/431946152/free-roblox-gift-card-codes-2021-game-hack PDF link annotation
    • http://artistaone.co/userfiles/files/is-kinetic-code-going-to-be-free-roblox_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/free-robux-without-verify_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/game-toolbox_GM479516143.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/how-do-you-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/free-robux-2021-pastebin_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/rbxdemon_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/download-cerberus-roblox-hack_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/how-to-change-your-name-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/coin-master-heaven-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/www-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/minecraft-clipart-free_GM479516143.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/roblox-free-online-game_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/free-minecraft-codes_GM479516143.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/free-robux-that-actually-works-2021_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_off0000346f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x346F 22576 bytes
SHA-256: 4470f0d603e067f1616315c801a44be789b1647eda239ace605d7ad84012f9ab
font_01_sfnt_off0000665f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x665F 19452 bytes
SHA-256: 8115ccb621edd4612311f62a2018219b20574293e23f0c1b138e5e1805582403

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