Malicious PDF — malware analysis report

Static analysis result for SHA-256 ceea0edd618ff3c8…

MALICIOUS

PDF

45.0 KB Authoring application: OpenOffice Draw
MD5: 335fd834005477efa6ed606a81cc5c8c SHA-1: a59e9f7119277323e17a8658ae03c06bb6c1f7f9 SHA-256: ceea0edd618ff3c8ba77bfb18f4b3994b32aea2b7e2ba25250e5efa318e60d21
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file was detected as malicious by ClamAV and an ML classifier, and exhibits characteristics of a link farm. The heuristic PDF_SEO_LINK_FARM indicates the presence of numerous external PDF links, with the first observed URL being http://narragansettgunclub.org/uploads/1/3/0/2/130272396/dovotudu.pdf. This suggests the document's primary purpose is to redirect users to potentially harmful content hosted on various domains.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://narragansettgunclub.org/uploads/1/3/0/2/130272396/dovotudu.pdf
    • http://www.betterjourney.net/uploads/1/3/0/4/130435601/pilumorilugabotoki.pdf
    • http://lovenetworking.co.uk/uploads/1/3/0/9/130969362/zozamopive.pdf
    • http://www.runaboutboats.ca/uploads/1/3/0/6/130640033/pepagef-lokuvono.pdf
    • http://csgocave.net/uploads/1/3/0/7/130739369/lusevol-pabuna-kizawufuvumufa-gufaxim.pdf
    • http://stalvanjaarsveld.nl/uploads/1/3/0/5/130588584/3244081.pdf
    • http://eraji.net/uploads/1/3/0/6/130639336/4127790.pdf
    • http://ticepropertymanagement.com/uploads/1/3/0/2/130288600/zurekoxotu.pdf
    • http://myamandarogers.com/uploads/1/3/0/6/130621897/pivuxivake.pdf
    • http://mcclatcheyassociates.com/uploads/1/3/0/5/130539053/65dc1f446e895cf.pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065c2.bin
2fcc7d2b1d9638083662cddce0b6f3dfe2fb710af7ab41d9211eeafdb728d608		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65C2 8176 bytes

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