Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cb4300d4df633ee…

MALICIOUS

PDF

49.4 KB Authoring application: Inkscape
MD5: 400760ec28cdf33f240c7ddcd223c417 SHA-1: 3bf7690f18a4f82c931fc33e61ad7694fdc75597 SHA-256: 7cb4300d4df633eec2526e723b82fe8a92ec1aa9296a980dbfd9696978ee74b6
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links to other PDF files hosted on various domains. This behavior is indicative of a link farm or a phishing campaign designed to redirect users to malicious content. The ClamAV detection further supports its malicious nature. No scripts were extracted, and the document body was heavily obfuscated and unreadable.

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://rochestersportsfan.com/uploads/1/3/0/5/130589031/d072a8e748d.pdf
    • http://nathanielmuncie.com/uploads/1/3/0/5/130551091/8dab3999dffd8.pdf
    • http://kristibowdenphotography.com/uploads/1/3/0/8/130874010/jenotaripa-tiribifufo-legazowurumu-pekujakikoruk.pdf
    • http://nomadic-chris.com/uploads/1/3/0/6/130620797/sajevajok.pdf
    • http://riverviewcottage.info/uploads/1/3/0/9/130969842/1972687.pdf
    • http://managerasateamnavigator.com/uploads/1/3/0/5/130543976/784580.pdf
    • http://educationalroboticsreview.com/uploads/1/3/0/5/130539446/9623026.pdf
    • http://kellyrobertson.net/uploads/1/3/0/8/130873833/wepuxawu-fozisole-tawuwibenur.pdf
    • http://bodhishiatsu.com/uploads/1/3/0/2/130289166/bejawupeloza.pdf
    • http://laurenkwatson.com/uploads/1/3/0/6/130604013/jimevarexaf-jejixovujazeziw-fanuwok-dejudav.pdf
    • http://themethodmeditation.com/uploads/1/3/0/5/130545884/kivuf_fesevemab_gokuniv_podarededun.pdf
    • http://finstudio.org/uploads/1/3/0/7/130775528/lumidiru.pdf
    • http://client.pricestudios.org/uploads/1/3/0/5/130542922/2670258.pdf
    • http://younggunsfishingteam.com/uploads/1/3/0/6/130639973/7257108.pdf
    • http://huifengguojiyulehuisuo.br3h.com/uploads/1/3/0/5/130588790/130588790.html#adobe+audition+1.5+indir

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005702.bin
d907c570f1f8f2d62f38d7529dbf77de46ca3a1917ec53aca7a78bae59874b04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5702 2616 bytes
font_01_sfnt_off0000637c.bin
26bb77f60be13475620f0539092c469d154e657af83e7731fb1e5f6b1b897747		 pdf-font-stream PDF embedded font (sfnt) at offset 0x637C 10016 bytes

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