Malicious PDF — malware analysis report

Static analysis result for SHA-256 259a5d485f72e03b…

MALICIOUS

PDF

44.7 KB Authoring application: Serif PagePlus
MD5: 939d6f10584cee1728aa02e307923a22 SHA-1: 9bf1e321125fd53d216ba6f0233e8ddc988b4ace SHA-256: 259a5d485f72e03b1fc510c333c8a296f255ecddacadd046115386d0a63063ee
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to other PDF files. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further indicates a phishing or malicious intent. The embedded URLs are likely part of a campaign to distribute further malicious content or conduct phishing attacks.

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://pawsitive-dog-training.com/uploads/1/3/0/6/130639038/4052963.pdf
    • http://ladadetail.su/uploads/2020/01/28/metodavux.pdf
    • http://michaeldietze.net/uploads/1/3/0/4/130483337/6998998.pdf
    • http://arcadiagardensllclandscapinganddesign.com/uploads/1/3/0/7/130776630/130776630.html#carolina+mammal+heart+dissection+guide+answers

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000fce.bin
d0a18a7ca4134b7be82169852158f93193b3fe6c5659e7a668bbf0d766c63cbf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFCE 8228 bytes
font_01_sfnt_off00006904.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6904 16036 bytes

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