Malicious PDF — malware analysis report

Static analysis result for SHA-256 271856e66174bbe3…

MALICIOUS

PDF

48.7 KB Authoring application: Adobe PDF Library 9.0
MD5: eb7f014e46f3924e865b246797cf6efd SHA-1: 9f4dff042cedc4c84265c9368bf73e22c3f5d176 SHA-256: 271856e66174bbe3137f8efaa9b380ac17145464c932c38909a041496b0cd110
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm designed to distribute malicious content. ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or redirection-based attack. The ML classifier also strongly indicated maliciousness. The primary attack pattern involves redirecting users through these numerous links to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://defense-elec-corp.com/uploads/1/3/0/7/130776645/1180446.pdf
    • http://musclesandmimosas.us/uploads/1/3/0/6/130620393/wiwokododabuz_ruzunukaba.pdf
    • http://abcdts.store/uploads/1/3/0/8/130813362/ruromesebotazaxev.pdf
    • http://stakemycoins.com/uploads/1/3/0/2/130272513/vibipit_jukebanajagobu_sixosik.pdf
    • http://katietackesphotography.com/uploads/1/3/0/4/130492689/jutupavovukome-vabolo-rewudeforalak-fisoxipozarapu.pdf
    • http://staceyshairandbeauty.com/uploads/1/3/0/7/130775542/lijuxavutuzer.pdf
    • http://lttaxcollector.com/uploads/1/3/0/2/130271048/mugero-wefiwabotona-kolora.pdf
    • http://infamouscreative.com/uploads/1/3/0/7/130738779/d7d9a0.pdf
    • http://brandgrenade.com/uploads/1/3/0/8/130813755/xanatel.pdf
    • http://www.americorealestates.com/uploads/1/3/0/7/130738876/9061327.pdf
    • http://netspeedsolutions.com/uploads/1/3/0/7/130739275/nabezorewusivovado.pdf
    • http://mta-sts.mail.smokymtnquilters.com/uploads/1/3/0/6/130621938/dasumenitarilavib.pdf
    • http://adjuvotechnology.com/uploads/1/3/0/5/130551090/pufavogodul.pdf
    • http://hudsonparkproducts.com/uploads/1/3/0/6/130621597/83afca.pdf
    • http://www.dev.thecedars.ca/uploads/1/3/0/2/130287965/36436178fa.pdf
    • http://3e3.co.uk/uploads/1/3/0/2/130272585/detegodalozen.pdf
    • http://labiaplastycosmeticsurgery.com/uploads/1/3/0/4/130476346/4177816.pdf
    • http://pumpkinqueenofthesanjoaquin.com/uploads/1/3/0/7/130776349/2c48f5e4d.pdf
    • http://tiddlywikitips.com/uploads/1/3/0/5/130539992/kopagufogelof-morufoki.pdf
    • http://thetribe.club/uploads/1/3/0/7/130740391/tonanarodovozorine.pdf
    • http://wag-works.com/uploads/1/3/0/6/130605071/6756832.pdf
    • http://soundanddoctrine.com/uploads/1/3/0/6/130621873/3af3e418446b3b.pdf
    • http://djlbd.com/uploads/1/3/0/4/130488294/1405777.pdf
    • http://artisanesmeralda-spanish.devsite-1.com/uploads/1/3/0/5/130551366/130551366.html#foods+with+low+glycemic+index+for+diabetics+in+india

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c20.bin
c10c5cefead15bc90367e48089021c3937c6ae7aa0d2ce942f55cda9de871198		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C20 8024 bytes

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