Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7b8751189b84066…

MALICIOUS

PDF

39.0 KB Authoring application: GIMP
MD5: 1494d263d75df169f09cc5b9869c935b SHA-1: b8396ee1eb94598a9bf86841bdf48f22be57761e SHA-256: c7b8751189b840669b5bba0f4ad0345b2ebc8c7f8039a2d86ad70ac650e79fba
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical PDF_SEO_LINK_FARM rule and ClamAV detection for 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. The file contains a large number of embedded URLs, all pointing to external PDF files, suggesting a link farm designed to distribute malicious content or conduct phishing attacks. No scripts were extracted from this sample.

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.trifoldmaps.com/uploads/1/3/0/6/130639885/31b2eae188c.pdf
    • http://server1.betaalbaarmooier.nl/uploads/1/3/0/6/130605204/bafipexesi.pdf
    • http://www.marionminotti.org/uploads/1/3/0/6/130639887/9320926.pdf
    • http://brothersreview.com/uploads/1/3/0/7/130739449/gitekabokovit-wapawur-pupupimo.pdf
    • http://www.miraalhammadi.com/uploads/1/3/0/3/130313049/5405446.pdf
    • http://impuestosinteligentes.com/uploads/1/3/0/7/130776677/puginajofes.pdf
    • http://mta-sts.mx.springmorefarm.com/uploads/1/3/0/6/130621301/lutekolarixof_dafadefuzixof_nuxiretow_tamojewaful.pdf
    • http://74-123-72-67.mgwnet.com/uploads/1/3/0/5/130588928/18a8d4e860a057.pdf
    • http://www.shoplife2living.com/uploads/1/3/0/6/130639998/d9c01bb13cb29.pdf
    • http://listingsbyrob.com/uploads/1/3/0/4/130478360/zodezenokox.pdf
    • http://www.colorworxllc.com/uploads/1/3/0/6/130640048/9629549.pdf
    • http://jollyollykids.com/uploads/1/3/0/3/130313572/wuxofonejopemil.pdf
    • http://webmail.marketplacemortgage.com/uploads/1/3/0/7/130740164/3506403.pdf
    • http://netanawest.com/uploads/1/3/0/6/130605302/5271643.pdf
    • http://hot100project.com/uploads/1/3/0/3/130313790/kotopoguki.pdf
    • http://lachesnaie72.com/uploads/1/3/0/8/130815115/veponirus_xajevuti.pdf
    • http://jazzminh.com/uploads/1/3/0/2/130270917/guvonalowuwugesigeto.pdf
    • http://ruralfaith.com/uploads/1/3/0/2/130289655/d2f9d899a.pdf
    • http://carnesupremabrangus.com/uploads/1/3/0/8/130813798/rekunizagasiladud.pdf
    • http://autodiscover.trinitysleepyeye.org/uploads/1/3/0/4/130483741/8675050.pdf
    • http://newinvite.com/uploads/1/3/0/5/130543158/c9b039.pdf
    • http://thegreennetwork.net/uploads/1/3/0/2/130272406/kiwutomejonuxorababe.pdf
    • http://www.nmsignaturecleaning.com/uploads/1/3/0/8/130874090/8332403.pdf
    • http://swclink.com/uploads/1/3/0/3/130323146/e6ca8d2aac966cf.pdf
    • http://new.mgh-r.ch/uploads/1/3/0/7/130776580/130776580.html#crochet+hat+pattern+using+super+bulky+yarn
    • http://jollyollykids.com/uploads/1/3/0/3/13

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003231.bin
e345fd015ac71360e742ce3fe67243893b3383ec31488ebc7de1c335e81258b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3231 8788 bytes

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