Malicious PDF — malware analysis report

Static analysis result for SHA-256 489e9e5eb0d3dea4…

MALICIOUS

PDF

34.5 KB Created: 2021-06-27 15:04:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4eb19aff80881d604d50252200510504 SHA-1: 90c751569938a405fa84d288097bfd90ce1e21e3 SHA-256: 489e9e5eb0d3dea4e02de6803a0f31ee282d5c6745fd80ebc4a8b8105921d331
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites that offer game hacks and cheats, such as 'cheat-engine-roblox-games-game-hack'. This lure, combined with heuristics indicating a password-protected archive and a visual download button, suggests a phishing or malware distribution attempt. The document's content and structure strongly indicate an attempt to trick users into downloading potentially malicious files.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/cheat-engine-roblox-games-game-hack PDF link annotation
    • http://lib.stimykpn.ac.id/repository/free-robux-patched-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/get-2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/archery-master-3d-apk-and-mod-free-download-unlimited-coins_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-cheat-at-boku-no-roblox-remastered_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-hack-ios-apk_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-be-a-wannabe-hacker-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-get-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/uprobuxcom-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/counter-blox-roblox-offensive-hacks_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-hack-roblox-account-on-mobile-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-roblox-toy-codes-list_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-hack-any-roblox-game-no-downloads_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/easy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-get-free-robux-working-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-do-you-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F6D 22468 bytes
SHA-256: 7a01ef9beb7666401c3d37a6a1134b5c1e78818ff480fe174bfc354a96c5fc00
font_01_sfnt_off00006194.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6194 19136 bytes
SHA-256: f87c3ba074a4b882d7bfe3f060f281b03e0a86d7985b2d23b97cd1262ad2b0aa

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