Malicious PDF — malware analysis report

Static analysis result for SHA-256 09d88b8f96e25ae2…

MALICIOUS

PDF

39.2 KB Authoring application: OpenOffice.org
MD5: 6ad2acf10dfdeff1666fb67c2570b8e4 SHA-1: 87bc254456703a5a3617f97fabfa4f17315b0895 SHA-256: 09d88b8f96e25ae273c05f0c4b0edfce30203872ad7166bd79a00e4f52b74f0b
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to other PDF files. This suggests a tactic to distribute malicious content or manipulate search engine results. The ML classifier and ClamAV detection further confirm its malicious nature, with ClamAV identifying it as Pdf.Phishing.TtraffRobotInstall. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

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://www.samanthaabbato.com/uploads/1/3/0/6/130621523/loxuvami.pdf
    • http://betterbodiesgympattaya.com/uploads/1/3/0/5/130550847/39fb8f243c1d59.pdf
    • http://apartmentsbastion.com/uploads/1/3/0/7/130776504/jodetigawanefutasi.pdf
    • http://spacecookies.us/uploads/1/3/0/5/130539072/f89bfb4700be.pdf
    • http://sooperda.com/uploads/1/3/0/4/130476320/wusizibujor.pdf
    • http://mothershands.org/uploads/1/3/0/2/130287246/3179521.pdf
    • http://coinoplaundryparts.com/uploads/1/3/0/7/130776680/767761.pdf
    • http://localmarketingprofits.com/uploads/1/3/0/4/130488270/9e7612f5ca.pdf
    • http://ncespta.com/uploads/1/3/0/6/130605285/aba7d3701d.pdf
    • http://lmbellacosmeticos.com/uploads/1/3/0/7/130775368/18b7ab5ff.pdf
    • http://proseandcommas.org/uploads/1/3/0/5/130550887/39f3d26b455e.pdf
    • http://floattankinfo.com/uploads/1/3/0/4/130476050/8059077.pdf
    • http://www.doubleviewphysio.com.au/uploads/1/3/0/4/130477533/d016c9351a15e.pdf
    • http://redirecttestthingy.com/uploads/1/3/0/2/130287553/c134f154.pdf
    • http://myncpl.com/uploads/1/3/0/7/130739175/zijavukimabipu.pdf
    • http://binarysv.com/uploads/1/3/0/6/130621568/1154413.pdf
    • http://www.sharpthepencilphoto.com/uploads/1/3/0/6/130621642/9671745.pdf
    • http://harmonyofart.com/uploads/1/3/0/2/130287847/jukesebip.pdf
    • http://thairapist.com/uploads/1/3/0/8/130814397/1441704.pdf
    • http://mustardseedmarketinggroup.com/uploads/1/3/0/7/130775049/c787e9.pdf
    • http://barbaraharveylaw.com/uploads/1/3/0/4/130477228/f25203785cdbb.pdf
    • http://thetribe.club/uploads/1/3/0/5/130543575/fapodivi.pdf
    • http://brandgrenade.com/uploads/1/3/0/6/130621205/5724534.pdf
    • http://stayusahotel-wb.devsite-1.com/uploads/1/3/0/5/130588435/130588435.html#adafruit+adxl345+raspberry+pi

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003543.bin
478c6948ce85633cda95e87da22e97536057b9c263da6b5b5dd43ad89f55f6be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3543 8584 bytes

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