Malicious PDF — malware analysis report

Static analysis result for SHA-256 36b22182be976f1d…

MALICIOUS

PDF

36.4 KB Authoring application: GIMP
MD5: ed338deb44505877a5b1df842fbc42b3 SHA-1: 264ba70c2ac199540905d9101d858119ae05ad0c SHA-256: 36b22182be976f1d1441777578381c58459bc30b3da94392b86f796a4d8ced5b
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to other PDF files hosted on diverse domains. This behavior is characteristic of SEO spam or phishing campaigns designed to drive traffic to malicious content. The ClamAV detection and ML classifier further support its malicious nature, flagging it as Pdf.Phishing.TtraffRobotInstall.

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://mta-sts.mail.poloprague.com/uploads/1/3/0/6/130621376/jitikis.pdf
    • http://stedwardschoolchristmastreefundraiser.com/uploads/1/3/0/3/130323599/tukisubaviladisuba.pdf
    • http://andreamingels.com/uploads/1/3/0/5/130590672/4d076c3197.pdf
    • http://more.relishelgin.ca/uploads/1/3/0/7/130738996/bbaae0f273.pdf
    • http://danicagoward.com/uploads/1/3/0/6/130620607/dujinizofadodaboso.pdf
    • http://mail.the-udder-preschool.co.uk/uploads/1/3/0/8/130814058/3f1640db28b.pdf
    • http://0frenchpolishing.com/uploads/1/3/0/8/130874485/toziwatunuw_jazenox_munevagewukema_bezufol.pdf
    • http://globalcompubot.com/uploads/1/3/0/7/130776249/zejunubalajumonej.pdf
    • http://nomadsigningservices.com/uploads/1/3/0/2/130289345/4442935.pdf
    • http://rubylencicki.com/uploads/1/3/0/3/130313358/53d4b7.pdf
    • http://drinkhereplayhere.com/uploads/1/3/0/4/130488955/kazaposesadi.pdf
    • http://businessloanbrokercoaching.com/uploads/1/3/0/2/130289467/gedusek.pdf
    • http://2handsstudio.net/uploads/1/3/0/3/130323360/tiwunasefiz-rijaguv-dotul.pdf
    • http://methodalliance.org/uploads/1/3/0/7/130739616/1254da.pdf
    • http://mhchefitzportfolio.com/uploads/1/3/0/3/130379457/3442880.pdf
    • http://oneaday.dance/uploads/1/3/0/4/130483373/1d5eff7d.pdf
    • http://neighborhoodcookingacademy.com/uploads/1/3/0/4/130476152/votanabaxakezij.pdf
    • http://mx.ps305.com/uploads/1/3/0/7/130775443/pexizenurotilakubigi.pdf
    • http://solecobbler.com/uploads/1/3/0/4/130476525/172c8a0c69bce9.pdf
    • http://makrworld.com/uploads/1/3/0/5/130588687/878213.pdf
    • http://74-123-72-68.mgwnet.com/uploads/1/3/0/6/130639811/130639811.html#typhoid+vaccine+oral+and+alcohol

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fb5.bin
bb4d85fbd85e6bc038c204d1fdc9ab91b56bd68e7518f8d093c4ee8a9191f498		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2FB5 7432 bytes

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