Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f381f679a8fe0e6…

MALICIOUS

PDF

39.9 KB Authoring application: pdf-parser
MD5: edb03969402d616a1de67bd8254a65cf SHA-1: 3f5a7a0d94f7fe1566720aab7a58afb5350e8666 SHA-256: 4f381f679a8fe0e62415f54edb0a2fcbe512a5054e48d3b91c8901d43c7d0c0c
150 Risk Score

Malware Insights

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

The PDF contains a link farm designed to lure users to download other PDF files, as indicated by the 'PDF_SEO_LINK_FARM' heuristic. The document body text mentions 'Element 3d after effects cs6', suggesting a lure to download potentially malicious software. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious download intent.

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://cadencehealth.co.uk/uploads/1/3/0/5/130589128/950406e.pdf
    • http://mrhillchemistry.co.uk/uploads/1/3/0/6/130603715/dulupovuvu-detisilul-wiwuzidodojemiw-jigozo.pdf
    • http://miraclesinmyanmar.org/uploads/1/3/0/2/130271165/visimodibinotov-fajipug-paludanepu.pdf
    • http://pettoy.net/uploads/1/3/0/6/130604213/00af3c29967.pdf
    • http://mentesconscientes.org/uploads/1/3/0/2/130274305/jizidukojop_juvoken_jeguxuxozeka.pdf
    • http://bestcheaptrips.net/uploads/1/3/0/2/130291555/1638005.pdf
    • http://blondiau.org/uploads/1/3/0/5/130589400/kafigavikukokemajok.pdf
    • http://mrsscunningham.com/uploads/1/3/0/6/130603761/c24a897f35e19d.pdf
    • http://foothillsbiblefellowship.com/uploads/1/3/0/6/130605193/130605193.html#element+3d+after+effects+cs6

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000124b.bin
99bd7f83fb9e755207c8a29085b82e4fbb7e9ac4f030b5ea5f640ae9a8f4c07a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x124B 8988 bytes

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