Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4d89f5339913261…

MALICIOUS

PDF

48.8 KB Authoring application: QPDF
MD5: 96304d26a5739f66f73c7ce2f4d75ff4 SHA-1: 5881e017cd8e43105d3b645d40a86669884b6574 SHA-256: c4d89f5339913261de6dc1092c512cca4dc60d06dcc55c9f39f6f9de903ed697
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links predominantly point to other PDF files hosted on various domains, suggesting a link farm designed to redirect users to malicious content. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or traffic redirection intent. 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://northstargateway.com/uploads/1/3/0/3/130324248/dedadodaxexiv.pdf
    • http://albanovendingmachines.com/uploads/1/3/0/2/130292104/genavifup.pdf
    • http://cuttingedgepoodles.com/uploads/1/3/0/5/130543743/7831829.pdf
    • http://ctruin.com/uploads/1/3/0/5/130539188/876e47c300650b5.pdf
    • http://cassyhemp.com/uploads/1/3/0/5/130588438/vitafegag.pdf
    • http://www.hkrata.org/uploads/1/3/0/8/130874482/nirelurixul-xezazo-pizexit.pdf
    • http://breathingzonetech.org/uploads/1/3/0/6/130622024/kapolaj.pdf
    • http://www.carolina-conjure.com/uploads/1/3/0/3/130323588/4018998.pdf
    • http://glitzandglampamperparties.com/uploads/1/3/0/6/130604871/859eea0a17860.pdf
    • http://hostmaster.8020-itsolutions.com/uploads/1/3/0/6/130603760/kopejajes.pdf
    • http://metalock-international.com/uploads/1/3/0/5/130551287/mekaz.pdf
    • http://mta180.qualitynow.net/uploads/1/3/0/6/130604968/5baef0.pdf
    • http://forgoodorforawesome.com/uploads/1/3/0/8/130814186/3622581.pdf
    • http://mta-sts.fpcmorganton.org/uploads/1/3/0/7/130739344/kivozojugabufo_vofaram.pdf
    • http://www.sensible-childcare.com/uploads/1/3/0/7/130775461/1912059.pdf
    • http://sanblastoursislands.com/uploads/1/3/0/5/130539114/kajusonoxajaxusovu.pdf
    • http://www.flaxrootstattoo.co.nz/uploads/1/3/0/2/130272387/1125419.pdf
    • http://rdt7p9.salon225.com/uploads/1/3/0/7/130774969/130774969.html#rachmaninoff+prelude+in+c+sharp+minor+opus+3+no.+2

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004424.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4424 16036 bytes
font_01_sfnt_off00005c13.bin
d8df96366d4bde0e56563009fe77ae86def8c8ea48fed9a656cca742e2b5fe2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C13 10584 bytes

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