Malicious PDF — malware analysis report

Static analysis result for SHA-256 959d75f41b078a7b…

MALICIOUS

PDF

34.9 KB Authoring application: Serif PagePlus
MD5: c250527eaaecb953328a3b8839248576 SHA-1: dc45020c5248fba11d7cac19239f85b456b9a987 SHA-256: 959d75f41b078a7b8dbdbcfbba8fcfbb1a8c65892c3cddf1ee8f651ec4a05077
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique commonly used for SEO spam or to redirect users to malicious sites. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the critical heuristic 'PDF_SEO_LINK_FARM' strongly indicate this malicious intent. The document body contains fragmented text related to liver function tests, which appears to be a lure to disguise the malicious link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://rustyeyeball.com/uploads/1/3/0/8/130874567/wuvosebirow_soxob.pdf
    • http://hairremovalbicester.co.uk/uploads/1/3/0/3/130379113/wijejadixididef.pdf
    • http://bliro.org/uploads/1/3/0/7/130775380/8090614.pdf
    • http://deinehandwerker.ch/uploads/1/3/0/4/130436204/xevas.pdf
    • http://www.hoodlassdecorators.com/uploads/1/3/0/5/130589286/1719852.pdf
    • http://loveloudesigns.com/uploads/1/3/0/7/130776886/3390132.pdf
    • http://bishophomeservices.com/uploads/1/3/0/7/130776416/julexolari.pdf
    • http://dallasoilnvestment.beexploration.com/uploads/1/3/0/5/130539798/fexigupife_nerizifilora_zaxugana.pdf
    • http://nfondy.net/uploads/1/3/0/7/130775002/bd73853.pdf
    • http://atlanticseasaltcompany.com/uploads/1/3/0/6/130621152/saruvukuket.pdf
    • http://whythedogdied.com/uploads/1/3/0/5/130543188/7385225.pdf
    • http://guildaware.org/uploads/1/3/0/5/130539170/xobif-guwofaxukebi.pdf
    • http://tahomahome.net/uploads/1/3/0/4/130483052/222ce153.pdf
    • http://courtavailability.com/uploads/1/3/0/7/130738531/pevegasimipuvipezo.pdf
    • http://verosoup.com/uploads/1/3/0/8/130813447/kulati.pdf
    • http://74-123-76-102.mgwnet.com/uploads/1/3/0/5/130590153/130590153.html#liver+function+test+results+sgpt+sgot

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fd9.bin
aeb6bc235543483dd92080eda85c4ced2029e0303e354add294454f94801bd2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2FD9 7064 bytes

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