Malicious PDF — malware analysis report

Static analysis result for SHA-256 56fadce3cf632abe…

MALICIOUS

PDF

44.0 KB Created: 2021-06-11 02:15:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c3c5791c83332fc6840c3ba81794ff33 SHA-1: 22e012c3d6501d1787cde19482761383253aaf2c SHA-256: 56fadce3cf632abeb493368e59e988388e38990612d7af5194299fbc028e7778
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses a fake-CAPTCHA lure. 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 0.9865

Heuristics 5

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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 https://netcdn.tw/app/431946152/free-unused-roblox-toy-codes-game-hack PDF link annotation
    • http://demenagementlandry.com/images/free-robux-images_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-gold-cards-hack-2021_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/map-for-free-robux_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/animation-roblox-free_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/roblox-girl-avatar_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/how-to-hack-mad-city-roblox_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/get-free-robux-info_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-card-hack-app_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/minecraft-free_GM479516143.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-robux-obby_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
stream_004_off0000506f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x506F 24420 bytes
SHA-256: ad09fd95fcd09cec9f27ecc395c590878d9593673f24f15c70dda72b78fdcc7a
font_01_sfnt_off0000886b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x886B 18628 bytes
SHA-256: e1b4586197e5fa656e8d234758d85f6aa49fc0a57bde624c4651b1fd9951f822

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