Malicious PDF — malware analysis report

Static analysis result for SHA-256 411a8a096cb6e2cf…

MALICIOUS

PDF

57.0 KB Authoring application: Adobe PDF Library 9.0
MD5: 8f466b2f377552a8b4cae9d4921e75fa SHA-1: 87f9bc6395f916422583800cb222f856c7500e5b SHA-256: 411a8a096cb6e2cf112ac1ee684ecf6a47b8855ab67426bad408672536c24be5
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to other PDF files hosted on various domains. This behavior is indicative of a link farm used to distribute malicious content or conduct phishing attacks. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection motive. No scripts were extracted, and the document body content is heavily corrupted, making it difficult to ascertain the exact lure.

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://utile-it.com/uploads/1/3/0/2/130291589/zurofowo.pdf
    • http://mkcpac.net/uploads/1/3/0/6/130639160/xekugege.pdf
    • http://jodeedean.com/uploads/1/3/0/6/130639281/da245cbf717133.pdf
    • http://miloandmonroeboutique.com/uploads/1/3/0/4/130483909/5571127.pdf
    • http://www.cfrs.org.uk/uploads/1/3/0/5/130550724/dawupawaz-likuguzinudaxa-vobonagi-sabidorolademag.pdf
    • http://mmalite.com/uploads/1/3/0/3/130323479/90b5ce5a.pdf
    • http://aegisve.com/uploads/1/3/0/6/130603959/zofibarurexati.pdf
    • http://litolympiad.com/uploads/1/3/0/7/130775758/7f85c1f50f.pdf
    • http://westcoastkittens.com/uploads/1/3/0/7/130775615/wubelazija.pdf
    • http://nbscgospelfest.org/uploads/1/3/0/5/130551282/tipijeko.pdf
    • http://qualitycareafh.com/uploads/1/3/0/8/130814232/130814232.html#basketball+world+cup+2018+winner

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012ae.bin
cc420a3e75e2f0e7ed649b5fba68aa5e5fcbde7abe35242b2d44d274df32ca6f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12AE 9392 bytes

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