Malicious PDF — malware analysis report

Static analysis result for SHA-256 fad8c16cc302b8fe…

MALICIOUS

PDF

37.5 KB Authoring application: GIMP
MD5: 6aac37620e189ef4cb1377beda1e471c SHA-1: a030a12c094fb024b50d1807629c636ef610a72e SHA-256: fad8c16cc302b8fe95822e909166106fa14821217650a04cf8d1762eaf392d3d
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious payloads. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. No scripts were extracted from this sample, limiting the ability to determine specific execution chains.

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://createlikegod.com/uploads/1/3/0/6/130604552/gisafejir.pdf
    • http://natecleveland.net/uploads/1/3/0/8/130874670/gujaroxepeganomupawi.pdf
    • http://christianmchoi.com/uploads/1/3/0/2/130287394/fd34a6b.pdf
    • http://54north.info/uploads/1/3/0/3/130379341/vexiwifadosil.pdf
    • http://xtremetruckandtrailerspecialties.com/uploads/1/3/0/3/130379222/dewobawofe_sidosatu.pdf
    • http://bhpaschoolinspain.com/uploads/1/3/0/5/130551219/sekijo-kemovini.pdf
    • http://outpostnews.net/uploads/1/3/0/7/130775352/e01d1.pdf
    • http://hiyeller.com/uploads/1/3/0/7/130739103/8418671.pdf
    • http://hoosiersmallbusiness.com/uploads/1/3/0/6/130639892/297026.pdf
    • http://webdisk.pacificnanotech.co.nz/uploads/1/3/0/5/130588231/6810044.pdf
    • http://www.gzowskicollege.com/uploads/1/3/0/7/130776314/20871be66fc1919.pdf
    • http://phatreviews.com/uploads/1/3/0/8/130873975/komuvimeko-vikilixoda-diwim-gamovaxefigiv.pdf
    • http://www.bipocwhoskate.com/uploads/1/3/0/6/130620902/dobedon_kujubuvu.pdf
    • http://stop-n-smelltheflowers.com/uploads/1/3/0/3/130379173/9e5d7b2.pdf
    • http://straycookie.net/uploads/1/3/0/2/130270958/womofanaxi.pdf
    • http://www.convertedcanines.com/uploads/1/3/0/4/130483153/9028769.pdf
    • http://kandice-baker.pleasingfood.com/uploads/1/3/0/2/130272472/130272472.html#connect+to+remote+jvm+using+visualvm
    • http://phatreviews.com/uploads/1/3/0/8/13087397

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000036c6.bin
72b4e21eaba9eed4c0d0ecd957e52d33f09edd43a3b23b839f36cbc649e7ddf4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x36C6 7904 bytes

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