Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6a3d5ee8adef0e5…

MALICIOUS

PDF

43.0 KB Authoring application: pdf-parser
MD5: 80475525cb617efabb1b70a3200c6799 SHA-1: 86a8e569f94b01be51b55a7e27f6ab62d4d4a38b SHA-256: f6a3d5ee8adef0e559199f3a6bf55cd554b5233d67f7fe4104da9025b513c633
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external PDF files hosted on various domains. This behavior is indicative of a link farm designed to redirect users to potentially malicious content or phishing sites. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing and traffic redirection nature of this 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://americanepilepsyinstitute.com/uploads/1/3/0/6/130620612/cf487.pdf
    • http://elliefernandez.com/uploads/1/3/0/6/130620934/debataz_nufasuba_wivodafowuvumi_sefuwike.pdf
    • http://xoglamaccess.com/uploads/1/3/0/5/130588508/bilijuriza.pdf
    • http://3dactivesports.com/uploads/1/3/0/2/130288329/3281144.pdf
    • http://natgilbert.com/uploads/1/3/0/4/130488993/4424111.pdf
    • http://artekcm.com/uploads/1/3/0/4/130476150/zalekazola.pdf
    • http://mynutritioninnovation.com/uploads/1/3/0/4/130483872/130483872.html#someca+25d+fiche+technique

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001325.bin
85304b3123432ca286e6c29b53eb19926ae9eb1c23fd78b30680e0edeffa61f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1325 11008 bytes

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