Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ad636666b0d0a77…

MALICIOUS

PDF

35.3 KB Created: 2021-06-27 00:08:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 2c1fd4f0974dea8253efb15812cdfc41 SHA-1: a3b8ce29de6a5ef409ecdbe4d7fcf530bb0cccc3 SHA-256: 0ad636666b0d0a777ff2548b185d271c112c8e184f9202994985b5cba3b091e3
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 'game hacks' and 'generators'. The primary redirector URL is http://netcdn.co/app/431946152/hack-robux-with-no-gift-card-game-hack. The document body and embedded links suggest a social engineering lure to trick users into downloading potentially harmful files. No scripts were extracted, but the PDF's structure and heuristics indicate a malicious redirector.

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.co/app/431946152/hack-robux-with-no-gift-card-game-hack In PDF document text
    • http://lib.fisipumt.ac.id/repository/mode-hacker-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-to-get-free-roebucks-without-verification_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-hack-mod-apk-unlimited-spin-download_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/infinite-jump-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/7-year-old-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/10m-free-robux-daily_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-roblox-exploit-that-lets-you-use-gears_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/robux-hack-computer_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-hack-2021-late_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-100-spin-link_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/2nd-best-hacker-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-custom-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-can-i-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/star-roblox-mad-city-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/dowload-free-robux-hack-on-pc-for-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/minecraft-free-reddit_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/google-roblox-free-robux_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_off0000308e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x308E 22792 bytes
SHA-256: d5a3e0d8273c13146a84c54cdf9998ea6a376fdb52842f4eaaab157e20993c7d
font_01_sfnt_off000063be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63BE 19484 bytes
SHA-256: 4d9e39e1fced0469ec69f2c56f99193a7072a1a93fc9782916c7f6ef88db2dd6

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