Malicious PDF — malware analysis report

Static analysis result for SHA-256 cad000b4f171fb0a…

MALICIOUS

PDF

56.0 KB Authoring application: LibreOffice
MD5: 5acb8d8c094934e619937335993b22c9 SHA-1: 3ee07ba9f478b0192480922ceaccea67777adfbb SHA-256: cad000b4f171fb0a1513ee83e7857b1900b81bbf965eddb77d00a4c1235f3e9e
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, which is indicative of a link farm or phishing lure. The ClamAV detection further confirms its malicious nature. The document body, though partially corrupted, suggests a theme related to hotel reservations, likely a pretext to disguise the malicious links.

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://connorgosell.com/uploads/1/3/0/5/130539935/tulukiwadeludivilovo.pdf
    • http://adentamexico.com/uploads/1/3/0/6/130604207/096202509.pdf
    • http://soundoftheshoals.com/uploads/1/3/0/2/130274304/tiget_lelini_xitexume_fawudumegenupo.pdf
    • http://bodyworkbybarb.com/uploads/1/3/0/5/130588405/130588405.html#terminologia+de+reservaciones+hoteleras

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001130.bin
56e34d0c0c7dbb0604361fd67523ab36b7e647eecab986d19e91d4ed2217a00c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1130 10116 bytes

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