Malicious PDF — malware analysis report

Static analysis result for SHA-256 169ac994773079ca…

MALICIOUS

PDF

38.1 KB Created: 2021-05-21 23:41:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 7903459b10576a602c8989c83183b2fe SHA-1: 104eac014700a3daea46ee1b9f961ce4e309f574 SHA-256: 169ac994773079cac1f31b86c568fcd514c7321531a984a2ca005e4d3e02ba77
82 Risk Score

Malware Insights

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

The PDF document contains lures for free TikTok followers and game currency, directing users to click a link to download a browser extension or update. This is a common social engineering tactic to trick users into installing malicious software or revealing credentials. The embedded URL and other linked PDFs suggest a campaign distributing potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7010

Heuristics 4

  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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 https://netcdn.xyz/app/835599320/free-tiktok-followers-no-human-verification-game-hack PDF link annotation
    • http://dopheide.be/images/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://dopheide.be/images/free-promo-codes-roblox_GM431946152.pdfIn PDF document text
    • http://dopheide.be/images/free-spins-and-coins-blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://dopheide.be/images/roblox-free-roblox_GM431946152.pdfIn PDF document text
    • http://dopheide.be/images/roblox-avatar-editor-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000030ea.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30EA 24344 bytes
SHA-256: 544d7c29e8b67396ef3432de5dbc35dfd5f3a3ba26ab75ea75e73a2ffba97704
font_01_sfnt_off000068c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68C7 2896 bytes
SHA-256: c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd
font_02_sfnt_off000072ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72AD 18456 bytes
SHA-256: 6fa1441c1a321216f6114c799401e851ec7285796cff0c56691a74954fdf2722

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