Malicious PDF — malware analysis report

Static analysis result for SHA-256 656750ceaf7a2d54…

MALICIOUS

PDF

34.9 KB Created: 2021-07-05 20:54:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 283cb95c05ba7b7af72208a693a2de1e SHA-1: 10daaa27df508abae033cd4e159a8cf09be8f788 SHA-256: 656750ceaf7a2d54a5c45756dd879c84afbb4679584d3af35d2abd280a4815f3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free in-game currency to entice users to click on embedded links. The primary link, http://netcdn.tw/app/406889139/coin-master-free-spins-hack-without-human-verification-game-hack, is associated with a high-severity heuristic for game hack redirects. The document's content and numerous linked PDFs suggest a phishing or malware distribution campaign.

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-free-spins-hack-without-human-verification-game-hack PDF link annotation
    • http://nationshield.ae/userfiles/files/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/free-roblox-com_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/how-to-hack-to-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/minecraft-18-9-hacked-client_GM479516143.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/fake-gps-for-pokemon-go-free_GM1094591345.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/coin-master-hack-no-survey_GM406889139.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/minecraft-free-unblocked_GM479516143.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/free-robux-group-payouts_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/update-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/change-roblox-username-free_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/descargar-hack-para-roblox-robux_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/coin-master-free-cards-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_off000030f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30F6 22448 bytes
SHA-256: 2bb8ca9953c384816175d77d853e6a1d64ce99f579a81dcf6ddffe0aa98e1447
font_01_sfnt_off000062ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62EA 19244 bytes
SHA-256: 30c6eda7860abcbe2539b7325d9fcd8b1a95fd07748c36c511e8089874e2a7d7

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