Malicious PDF — malware analysis report

Static analysis result for SHA-256 972b9f2417fff9f1…

MALICIOUS

PDF

34.9 KB Authoring application: Serif PagePlus
MD5: ec417ae13f27f6bc930f00d56d49882c SHA-1: 5c496c88bb3b6d5171404179eca580dd626b0392 SHA-256: 972b9f2417fff9f19cad50a0e97698b12eff1ab0ffe8a67360bad5ca551a466c
152 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ClamAV and a machine learning classifier, indicating malicious intent. The PDF contains a large number of embedded URLs, suggesting a link farm or redirection mechanism designed to lead users to malicious content. The primary heuristic 'PDF_SEO_LINK_FARM' explicitly details the presence of numerous external PDF links, with the first URL being http://kathleensilks.com/uploads/1/3/0/3/130313123/a496430f9503ec.pdf.

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://kathleensilks.com/uploads/1/3/0/3/130313123/a496430f9503ec.pdf
    • http://joinloveandresistance.com/uploads/1/3/0/5/130551441/sivaxeneniboruwebit.pdf
    • http://uwlutherans.org/uploads/1/3/0/2/130289332/39d625c5d44a5d.pdf
    • http://edmbeautybar.com/uploads/1/3/0/3/130379285/sagatoweloxajerol.pdf
    • http://affordablevisualconcepts.com/uploads/1/3/0/2/130288502/6340400.pdf
    • http://www.funeralprogramcreationsllc.com/uploads/1/3/0/2/130272364/5a876d6a59.pdf
    • http://webdisk.clearskycoaching.co.uk/uploads/1/3/0/6/130621856/8483441.pdf
    • http://bhseducationfoundation.com/uploads/1/3/0/4/130483318/volisogef.pdf
    • http://huntertimko.com/uploads/1/3/0/9/130969418/jawoko.pdf
    • http://www.nessasgoodiesshop.com/uploads/1/3/0/5/130550986/xinazex.pdf
    • http://nationalpoolinspection.com/uploads/1/3/0/2/130288567/4156797.pdf
    • http://ouachitariverchallenge.com/uploads/1/3/0/7/130775888/wuzajanixipagel.pdf
    • http://integratedwoundhealing.net/uploads/1/3/0/7/130775928/4639579.pdf
    • http://www.giseledamour.com/uploads/1/3/0/8/130874241/6650155.pdf
    • http://mspoolebiology.com/uploads/1/3/0/7/130739835/5043410.pdf
    • http://www.southerngatemusicfestival.com/uploads/1/3/0/4/130489275/kodevugi.pdf
    • http://www.aledobands.com/uploads/1/3/0/6/130604417/106709.pdf
    • http://www.galeriazia.net/uploads/1/3/0/7/130776114/bumorul_walame.pdf
    • http://theknitting.blog/uploads/1/3/0/2/130289430/xiwumufetitoko.pdf
    • http://djsacademy.com/uploads/1/3/0/6/130604694/130604694.html#m+chat+rf+espa%C3%B1ol

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002b51.bin
63137ad2d04f00dc8aecb34eb05763fd0c2ce784e1f6d989e3f394a48a2e70c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B51 7280 bytes

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