Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b000ce3e59f455d…

MALICIOUS

PDF

34.3 KB Created: 2021-06-25 19:02:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: aeed9d7dcdf7e3b82e219b2e1cc81290 SHA-1: d375158ab5820ff6ae50f9a200ea868637ca88d3 SHA-256: 9b000ce3e59f455dce858421fcdc982a88942969c6534cce87fed13f1a94e0c5
102 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 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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/431946152/2021-how-to-free-admin-commands-to-your-roblox-gane-game-hack PDF link annotation
    • http://103.68.2.77/__statics/gudangsoal/files/free-robux-without-downloading-apps_GM431946152.pdfPDF link annotation
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-get-2021000-robux-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/roblox-code-hack-speed_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/roblox-red-free-pants_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/free-roblox-hair-boy_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/buy-free-robux-roblox_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/cheat-codes-for-free-stuff-roblox_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/roblox-hack-without-verify_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/300-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-get-robux-in-roblox-for-free-on-pc_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/how-do-you-download-roblox-for-free_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_off00002e31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E31 21680 bytes
SHA-256: ec656c69db66eb9c74f31563f0f3d6a4408c8801d2fe373f53e70276eddadd7e
font_01_sfnt_off00005dff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DFF 20072 bytes
SHA-256: 61d0850228183192c9c3e1df6a725a89eb078c4e41cdb7b1c1f67307fcee5fab

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