Malicious PDF — malware analysis report

Static analysis result for SHA-256 e622b09897b8c908…

MALICIOUS

PDF

40.6 KB Authoring application: Pdftk
MD5: 43c5b436b0cba8737944b3dcc055f30f SHA-1: f9a7adb817310f94cc5d888e70eba7f17cfa569a SHA-256: e622b09897b8c9086249bd8d30a023c85fb286976b4e0f8eabbcaa76777d9754
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF files hosted on various domains, indicative of a link farm or redirection scheme. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly suggests a phishing or traffic redirection purpose. The document body, though heavily obfuscated, contains text related to 'vectors and geometry', which may serve as a 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://chickflickguide.com/uploads/1/3/0/5/130541600/watod.pdf
    • http://coplandia.com/uploads/1/3/0/6/130620417/katezufokalokog_joguxeka.pdf
    • http://findthatpartyplanau.net/uploads/1/3/0/6/130620479/zemobovolapo.pdf
    • http://windsorwes.com/uploads/1/3/0/4/130488195/paletaxav.pdf
    • http://rochesterhealthnetwork.org/uploads/1/3/0/3/130379651/gifubomefobiwazemale.pdf
    • http://cpmiddleburg.com/uploads/1/3/0/7/130740012/tuwakaxabu.pdf
    • http://ashtoninsuranceagents.com/uploads/1/3/0/6/130621944/3335664.pdf
    • http://autistech.org/uploads/1/3/0/5/130589108/f71e5.pdf
    • http://designsbydorian.biz/uploads/1/3/0/4/130476511/tagelipopeta.pdf
    • http://sos-1.com/uploads/1/3/0/7/130739983/zujuna-xurasik-dogetev-likolafoxelof.pdf
    • http://balihealingretreat.center/uploads/1/3/0/2/130272937/buros-masibamovef.pdf
    • http://nissanfigaro.net/uploads/1/3/0/6/130639407/bd44ed.pdf
    • http://libdot.org/uploads/1/3/0/6/130620667/b97c5ef79e9177a.pdf
    • http://blacktreelofts.com/uploads/1/3/0/8/130815008/130815008.html#download+vectors+and+geometry+pdf
    • http://ashtoninsuranceagents.com/upload

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003488.bin
d30e175d43c98d38f1156e9a861342bd20f14f68dd68e0f5df76e1f816dbe083		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3488 4132 bytes
font_01_sfnt_off0000450d.bin
adceda2aece8246a1c99010f31d5ae15c1718020dd67212f18079f18829ecbfe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x450D 8240 bytes

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