Malicious PDF — malware analysis report

Static analysis result for SHA-256 70081c502a821211…

MALICIOUS

PDF

34.7 KB Created: 2021-06-28 10:04:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: abb81dbf1d84b78e1d16fb5900c41066 SHA-1: 12e69761b989d721dc262a6933d80ff5a35333f7 SHA-256: 70081c502a82121121845d0cebec1917a8e87225f61e920e52ab99d81f825c34
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

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/treasure-hunt-simulator-roblox-hack-game-hack PDF link annotation
    • http://winnerwater.com.tw/image/data/files/moonactive-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/actual-free-robux_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/300-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/free-spin-coin-master-online_GM406889139.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/feel-free-roblox-library_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/coin-master-daily-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/opmu-roblox-hack-file-2021_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/free-nerd-glasses-roblox_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/wwwhaktutsin-2021-08-coinmasterfreespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/tiktok-freein_GM835599320.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/gift-cards-for-roblox-free_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/getrobux-now_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/free-roblux-for-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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_off00002f65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F65 22568 bytes
SHA-256: 09d55181846c26d4c5a95d886d4f5d0e489d0e5f9c1cb543541fac4d0fb5482c
font_01_sfnt_off000061b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B5 19280 bytes
SHA-256: 5de5b6b4c16bf9cf7e9bae1839436c0b1c4f82a4070da20c0852096ed3237df4

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