Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a31be9ac488355c…

MALICIOUS

PDF

36.0 KB Created: 2021-06-25 09:57:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 1ace62a4d2a1b63f45202268b2558386 SHA-1: 159d24d8f3ea4739d84b8599cb0fd9b0d2c00814 SHA-256: 6a31be9ac488355c4a4dc37968e95cd7651b4defb1f68c33b2e5b3263f83b890
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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/ninja-legends-roblox-script-hack-novembre-decembre-2021-game-hack PDF link annotation
    • http://digilibfisip.uwks.ac.id/repository/roblox-cheat-codes-for-vehicle-simulator_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-stuff-in-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/roblox-electric-state-darkrp-hack-money-script_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/admin-console-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-robux-generator-links_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-likes-on-tiktok_GM835599320.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/is-minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/roblox-aimbot-cheat-engine_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/wearedevs-roblox-exploits-and-hacks-amp_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/how-to-make-decals-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-account-roblox-ro-ghoul_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/what-are-some-hacks-for-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-roblox-cards-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/roblox-hack-download-windows-7_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/roblox-work-at-a-pizza-place-money-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-100-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-admin-panel-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/hack-anyone-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/how-to-make-a-free-admin-game-on-roblox_GM431946152.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_off000030cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30CB 22692 bytes
SHA-256: 17a5021eb3e3b6b1ae066a92fa151f5e3bfc32dece8c0dd91ab7db79bd2dee23
font_01_sfnt_off000063c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63C1 20360 bytes
SHA-256: 91f06cd17ac71b367d6e22eb066074f1bb6b5c7185cc8eb03919a409f0886220

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