Malicious PDF — malware analysis report

Static analysis result for SHA-256 fba66d02b396d4b5…

MALICIOUS

PDF

227.1 KB Created: 2021-07-03 12:44:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d737a571c51ad02e723fc611ecbc8f89 SHA-1: dcb81d47b6eb2da1ceb80d1a48f3c5bd1ce867dd SHA-256: fba66d02b396d4b5762ad7458836a8b4a419ee63b1a776325b08c994d21cad93
172 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link T1204.001 User Execution: Malicious Link

This PDF document was flagged as malicious. It uses a fake browser/software-install lure and 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 clean score 0.0118

Heuristics 7

  • 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
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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/1094591345/how-much-pokemon-go-free-today-game-hack PDF link annotation
    • http://lib.uho.ac.id/library/repository/http-blackgamesus-coinmasterhack_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/nomnomnom1-roblox-hacker_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/coin-master-hack-app-ios-download_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/pig-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/mcpe-master-hack-coin-apk_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/claim-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/coin-master-rewards_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/coin-master-app-hack_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/coin-master-for-pc-free-download_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/coin-master-code-hack_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/free-robux-codes_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_023_off00031f61.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31F61 25576 bytes
SHA-256: c5fd1f2640722b514c3111a004dbd33eb7a4b5693676b7151f48b0cd718d28c9
font_01_sfnt_off00035b49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35B49 19180 bytes
SHA-256: f30eca26302b57dabfa5c09f107a21bcef306644e08c299861cf01fc90717ed2

Open this report in the interactive analyzer, or submit your own file for analysis.