Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3ebee685b32c724…

MALICIOUS

PDF

34.0 KB Created: 2021-06-27 15:39:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 10dadb304aabaa60d44d9f80b30a4050 SHA-1: bb8724c37c2173325eebb4370c8db05d815853f8 SHA-256: d3ebee685b32c724623a7b6576cc556d6b1327ec7a33f75bfe6d2b36ff098b55
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded URLs, many pointing to an IP address, that are disguised as download links for game cheats and free currency. The document body and heuristics indicate a lure to trick users into clicking these links, likely leading to the download of further malicious content. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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/completely-black-shirts-roblox-free-game-hack PDF link annotation
    • http://103.68.2.77/__statics/gudangsoal/files/robux-hack-me_GM431946152.pdfPDF link annotation
    • http://103.68.2.77/__statics/gudangsoal/files/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/roblox-how-to-get-free-clothes-on-ipad_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/download-apk-tiktok-free_GM835599320.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/chronosploit-roblox-hack_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/hack-cuenta-roblox-2021-pastebin_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/cbr-roblox-hacks-november-2021_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/tower-of-hell-roblox-hack_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/free-tiktok-likes-2021_GM835599320.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/comment-cheat-sur-roblox-retail-tycoon-1211_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-hack-infinity-rpg-roblox_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/roblox-hack-robux-download-apk_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/claim-free-robux_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/enter-password-for-free-robux_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-get-1-billion-robux-for-free_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/free-coins-for-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_off00002ed9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ED9 21440 bytes
SHA-256: 4c5dc1aa72d2064a1f2abcaf3598b69dcc40adb5b34222a4be41fa106723fb5e
font_01_sfnt_off00005dca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DCA 19824 bytes
SHA-256: 448b60ed6bc586095177a128acf691b4942c3e829e8359c7b614959f4400749d