Malicious PDF — malware analysis report

Static analysis result for SHA-256 416deaec0498778c…

MALICIOUS

PDF

36.5 KB Authoring application: Inkscape
MD5: 6db0035e25442d9f58734bef7cefdcca SHA-1: d4f491ddab87eeb5b5d1839c72c9456a4426644a SHA-256: 416deaec0498778c5ee022c0782c2dedd0f8c6009ace20ca60c1fd605e036e15
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further indicates a phishing or traffic redirection intent. The document body, though partially corrupted, contains references to IELTS speaking samples and includes many of the same URLs found in the heuristics, suggesting a lure to external content.

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://syracusechildrenschorus.org/uploads/1/3/0/3/130313070/d287ed4c9f91e6f.pdf
    • http://tommycookdrums.com/uploads/1/3/0/2/130289436/7252046.pdf
    • http://epicureanodyssey.net/uploads/1/3/0/5/130543383/fd1360c.pdf
    • http://ciircle.ca/uploads/1/3/0/6/130639539/nekafekirige.pdf
    • http://mfautodetail.com/uploads/1/3/0/4/130483564/notakewigati.pdf
    • http://glencovemobilehomepark.com/uploads/1/3/0/6/130621032/7c46e0ba6f.pdf
    • http://radicallyawakenedmasters.com/uploads/1/3/0/7/130775244/bafafaxabik.pdf
    • http://risingskyweddings.com/uploads/1/3/0/5/130588857/ceec6a10d1db06.pdf
    • http://multistreams.com/uploads/1/3/0/6/130605405/130605405.html#ielts+speaking+sample+questions+and+answers+part+1

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011f7.bin
6992e04328f9cd0a4c1fe615e1d55da82f7c95e17c27134440c74ede0e03de6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11F7 8244 bytes

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