Malicious PDF — malware analysis report

Static analysis result for SHA-256 59ff4654409026e8…

MALICIOUS

PDF

42.2 KB Authoring application: OpenOffice.org
MD5: 47e0c5bda6e585d1646db078056f6d38 SHA-1: fcf137110daee8fab993337462018c91f83d2dbf SHA-256: 59ff4654409026e86f9e3a6b6238fff01eb26dcb110f45e13d1875f18c5f5f55
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, pointing to various domains. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further indicates a phishing or malicious intent. The document body, though heavily corrupted, contains phrases like 'Ebook pdf download' which, combined with the numerous external links, suggests a lure to external malicious websites for phishing or malware delivery.

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://bimoxexa.trinityemprestimos.com/uploads/2020/01/28/bifaru-votinamamebepas.pdf
    • http://lapapud.coffeeinsachet.com/uploads/2020/01/28/givifanawil.pdf
    • http://singaporenewexecutivecondo.com/uploads/1/3/0/5/130540077/jipalakisiladib-bibizanajix-gofofaxexavag.pdf
    • http://nicolitulk.com.au/uploads/1/3/0/3/130313553/130313553.html#ebook+pdf+download

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001037.bin
e56aec504abf69c0222477925449a6c58f5ea2f80f9e93806050f8a08c6b4650		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1037 8736 bytes

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