Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e43cee86961d7b3…

MALICIOUS

PDF

35.5 KB Created: 2021-07-08 06:59:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: d271761c8b2ff3d9257452159e68a2f2 SHA-1: f1c89ccc7a90178cf82ab6878b48f34c4a78fd2e SHA-256: 2e43cee86961d7b3a5847d4f4f5fb95cb260cbeefe2366736d6a889e90f4d399
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.tw/app/406889139/coin-master-working-hack-game-hack PDF link annotation
    • http://jjpremiers.com/files/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://jjpremiers.com/files/free-robux-hack-xbox-one_GM431946152.pdfIn PDF document text
    • http://jjpremiers.com/files/robux-hack_GM431946152.pdfIn PDF document text
    • http://jjpremiers.com/files/how-to-hack-into-roblox-accounta_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://www.jjpremiers.com/files/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/is-coin-master-hacks-safe_GM406889139.pdfIn PDF document text
    • https://www.jjpremiers.com/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://jjpremiers.com/files/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • https://www.jjpremiers.com/files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://jjpremiers.com/files/robux-hack-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://jjpremiers.com/files/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
    • https://www.jjpremiers.com/files/robloxfun-com-generator_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/roblox-vehicle-simulaor-hack-2021_GM431946152.pdfIn PDF document text
    • http://jjpremiers.com/files/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/hack-to-make-you-move-in-roblox_GM431946152.pdfIn PDF document text
    • http://jjpremiers.com/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/coin-master-heaven-free-spins-today_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_off000033db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33DB 23388 bytes
SHA-256: d43ecb03ad33764ea5fc0e6982a104e190e2025b343587c705577e7bd5036fdb
font_01_sfnt_off00006874.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6874 18204 bytes
SHA-256: c0d48818ffdaf61c16224bc7da9184709f9ce3d52e3b4ea6b6c72b3114ee60e3

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