Malicious PDF — malware analysis report

Static analysis result for SHA-256 9676accaa5f5dd8b…

MALICIOUS

PDF

44.3 KB Authoring application: PDF Studio
MD5: 75d658a8fb1206ef495b3e2336142718 SHA-1: 5e8836cbc165333f54edd3b87af37135c84757aa SHA-256: 9676accaa5f5dd8bb57565b5d0f88922ad7e65641a2bbe8b42bcd11e9868a28a
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links to external PDF files hosted on various domains. This behavior is indicative of 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.

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://abreanutrition.com/uploads/1/3/0/2/130289421/nimados.pdf
    • http://stlshrinerslimbreconstruction.com/uploads/1/3/0/6/130604303/9921392.pdf
    • http://lavenderhatbox.com/uploads/1/3/0/6/130603673/tarubakopikudi.pdf
    • http://georgiacrook.co.uk/uploads/1/3/0/6/130604806/a50a3671.pdf
    • http://myempoweringyouth.com/uploads/1/3/0/6/130621303/palubinaz.pdf
    • http://wisconsinlimousin.org/uploads/1/3/0/5/130589010/gipaxumowesawawi.pdf
    • http://noticiasinternacionales.net/uploads/1/3/0/2/130289669/gixenuxamomigofupuzo.pdf
    • http://vanvolleyleague.ca/uploads/1/3/0/7/130739070/2459557.pdf
    • http://www.jwalpinesports.com/uploads/1/3/0/6/130620490/808379.pdf
    • http://pocketbricks.com/uploads/1/3/0/5/130539002/wosodar.pdf
    • http://portraits.meliraphoto.com/uploads/1/3/0/7/130775879/zuvaliruvopipato.pdf
    • http://kavid.ca/uploads/1/3/0/7/130740073/tomuzijegiserex.pdf
    • http://glolures.com/uploads/1/3/0/6/130620576/kabagimuvexeb.pdf
    • http://calgarypopupweddings.com/uploads/1/3/0/5/130550679/b981b01a328554d.pdf
    • http://thereluctanttransformationalist.com/uploads/1/3/0/7/130776027/7488730.pdf
    • http://caresdl.com/uploads/1/3/0/6/130620568/8585ed47f9d.pdf
    • http://mountephraimtaxpayersfirst.com/uploads/1/3/0/7/130775135/webigubakozexiwit.pdf
    • http://acutabove.us/uploads/1/3/0/3/130379462/2b07a68.pdf
    • http://silentxc.com/uploads/1/3/0/2/130270873/numinivepirumupemo.pdf
    • http://adsl-63-204-18-1.benefitplans.org/uploads/1/3/0/5/130588735/130588735.html#role+of+small+scale+industries+in+the+development+of+indian+economy
    • http://www.jwalpinesports.com/uploads/1/3/0/6/13062

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f81.bin
56732f0cea517feea973ac59d27910181b5f874a1d9e4b7d624da61cafac3ed6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F81 7836 bytes

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