Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cb1af933784ce0b…

MALICIOUS

PDF

36.7 KB Authoring application: Adobe PDF Library 9.0
MD5: 3b2e01306e3dcd1b5c080f0a3d498e4b SHA-1: 6f268d40ac6ea53cfae124794ff2f86b352dcb65 SHA-256: 8cb1af933784ce0b295b44dcfdbae0216dac2b448fc6ee9f29f73e8295e40261
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 documents hosted on various domains. This behavior is indicative of a link farm used to distribute malicious content or conduct phishing attacks. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing classification. 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://baakboutique.com/uploads/1/3/0/7/130776476/2fb1d6f03d18.pdf
    • http://theroominrome.com/uploads/1/3/0/6/130621226/6203406.pdf
    • http://metzmtaloysius.com/uploads/1/3/0/4/130488662/9326886.pdf
    • http://mytinyhome.net/uploads/1/3/0/2/130289610/1569941.pdf
    • http://mikebarrineau.com/uploads/1/3/0/5/130539679/gadarugikufo.pdf
    • http://ferniere.thecedars.ca/uploads/1/3/0/7/130775088/3250058.pdf
    • http://necementshippers.com/uploads/1/3/0/6/130604805/8382173.pdf
    • http://carolynrim.com/uploads/1/3/0/6/130604737/43b5a1ab42b791a.pdf
    • http://morganvarn.com/uploads/1/3/0/5/130541285/6327ffa9cf.pdf
    • http://anderson-missions.com/uploads/1/3/0/6/130620202/8935435.pdf
    • http://picklejuiced.com/uploads/1/3/0/2/130288523/2333935.pdf
    • http://spotonactivationaward.com/uploads/1/3/0/6/130620509/xijunogupuporurunit.pdf
    • http://christianmusicandbooks.us/uploads/1/3/0/2/130272384/7864790.pdf
    • http://x0477123xstreamtravel.xsideas.com/uploads/1/3/0/2/130273616/130273616.html#ain%27t+i+a+woman+speech+date

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003653.bin
a96b61631332fa9fed8f653593a3a3388d4425d0030f38593253d1f2a1979ab0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3653 8168 bytes

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