Malicious PDF — malware analysis report

Static analysis result for SHA-256 2209493cce7797be…

MALICIOUS

PDF

109.0 KB Authoring application: Poppler-utils
MD5: d95778554a0e96e47b34f560223ef61a SHA-1: ce232830cbb19770beb3bfbda031b42679a87dd8 SHA-256: 2209493cce7797beb5264706061ce998f88adc9731cf018abac3c6696ecc0cd2
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files hosted on various domains, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a link farm or a distribution mechanism for further malicious content. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious intent, likely related to phishing or traffic redirection. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9886

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://cvolierborgerhout.com/uploads/1/3/0/5/130588599/sesewupo.pdf
    • http://artsequences.com/uploads/1/3/0/6/130605280/9f8f8ab65f8c2a.pdf
    • https://vigixaxafozeb.weebly.com/uploads/1/3/0/5/130590661/lojiro.pdf
    • http://sheriffproperties.com/uploads/1/3/0/4/130488169/kiragip.pdf
    • http://rightmovecolorado.com/uploads/1/3/0/4/130435978/wemolebani.pdf
    • http://unspoiledpodcasts.com/uploads/1/3/0/5/130588394/zitinavuk-godigisufi.pdf
    • http://natureguidetrainingbotswana.com/uploads/1/3/0/6/130620769/83f1ad753512.pdf
    • http://amdlifestylemgmt.com/uploads/1/3/0/2/130288720/6ed6a3346a.pdf
    • http://thresholdsorganizingco.com/uploads/1/3/0/6/130621461/130621461.html#a+isabel+por+patrick+fernando

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001456.bin
561b3a9a7f963c57430de69afef50bf9cad7a3ffabf025ca1b270a1e41977140		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1456 13124 bytes
font_01_sfnt_off000047f6.bin
4cfbeb6d982cbfbd610430abf79cd70ccd67c2844a7f688be850b74d2649e9c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47F6 17776 bytes
font_02_sfnt_off000173ee.bin
e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x173EE 2652 bytes

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