Malicious PDF — malware analysis report

Static analysis result for SHA-256 76d53573a1d4b574…

MALICIOUS

PDF

36.0 KB Created: 2021-07-06 00:29:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 4df9385f9e94bd69fa479c630f358912 SHA-1: f1ff2dce1dd48c165351e16b916c9270e6790385 SHA-256: 76d53573a1d4b574a112a6271c7947a34cb2df9e4ff81768f4453b99e559328a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting "free generators" and "game hacks" for popular games. The primary lure URL is http://netcdn.tw/app/406889139/coin-master-hack-dot-xyz-game-hack, which is flagged as a malicious redirector. The document's structure and embedded links suggest an attempt to trick users into visiting potentially harmful websites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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-hack-dot-xyz-game-hack In PDF document text
    • http://digilibfisip.unla.ac.id/repository/comment-cheat-sur-mad-city-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/inject-hack-roblox-buides-club_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/hack-coin-master-using-cheat-engine_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-get-free-vip-on-roblox-fashion-famous_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-codes-november-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/robux-fre-video_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/cashrapps-free-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-doge-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-online-hack-2021_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-roblox-exploi_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-tiktok-followers-app_GM835599320.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-hack-roblox-games-no-download_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-minecraft-account-generator_GM479516143.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/wwwfreerobuxgenoratercom_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/hack-boku-no-roblox-remastered-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_off000034b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34B2 23128 bytes
SHA-256: ac617455c11c56fbae3ea3518709f287ad8b9fc367fd0a16a5dd7f28299a0a57
font_01_sfnt_off000068b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68B8 18660 bytes
SHA-256: c26c40ee4891c1d47adb0e8ebae699ddddaaac98e823d7b201e7cc814470c871

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