Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9dc4b58d279f1db…

MALICIOUS

PDF

30.9 KB Authoring application: OpenOffice Draw
MD5: 72e5bc4bdaf60b5357478e4478f67bc9 SHA-1: d8fa3706ac5941076d454443a5be5d5478e25497 SHA-256: d9dc4b58d279f1db0d28431fd1391b10479e902491b3720180318d488cb53e52
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, which point to other PDF files hosted on various domains. This indicates a phishing or malicious content distribution attempt. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports the malicious nature of the file.

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://binda-narine.com/uploads/1/3/0/5/130590215/pegeropavinusa.pdf
    • http://beckataylor.com/uploads/1/3/0/2/130289793/b0634e8.pdf
    • http://nataliegarces.com/uploads/1/3/0/3/130324005/nobito_rijufezok.pdf
    • http://shoptheclubhouse.com/uploads/1/3/0/4/130475990/nazotiwatufawexar.pdf
    • http://mkwpartners.com/uploads/1/3/0/4/130476294/14c61a81b460aae.pdf
    • http://26thplaceflats.com/uploads/1/3/0/6/130639972/tiwozo.pdf
    • http://ramonmaciamusica.com/uploads/1/3/0/6/130620888/ravajon.pdf
    • http://alabamafestival.com/uploads/1/3/0/6/130604945/130604945.html#bless+the+lord+chords+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000110c.bin
87e14cf416afa4fb88a28f5065e8e6b4e63062c56e8166fa37042450d70356ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x110C 8196 bytes

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