Malicious PDF — malware analysis report

Static analysis result for SHA-256 92f290ec5d53d394…

MALICIOUS

PDF

47.4 KB Authoring application: pstoedit First seen: 2020-09-24
MD5: b54ac6127fb638c0f12155f0433f05d7 SHA-1: dd63fe181f29d7dcf36ad7293edf5b590d5b66eb SHA-256: 92f290ec5d53d3945c5a4ceb534c7919888559d614c1aadddc8e5b40ac37dcf0
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. This suggests the document's primary purpose is to drive traffic to these external URLs, which are themselves PDF files. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution through these linked PDFs. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://cnchomecrafts.net/uploads/1/3/0/6/130639178/korusulatef.pdf In PDF document text
    • http://www.fabulashbyher.com/uploads/1/3/0/6/130621264/pelidepawafipur_galajezujugazek.pdfIn PDF document text
    • http://thehecht.net/uploads/1/3/0/2/130271113/3169457.pdfIn PDF document text
    • http://www.njmlightingsolutions.co.uk/uploads/1/3/0/7/130739723/3399323.pdfIn PDF document text
    • http://financialcleansing.com/uploads/1/3/0/6/130620985/8892956.pdfIn PDF document text
    • http://bghsboosters.org/uploads/1/3/0/6/130604185/wivorutisu.pdfIn PDF document text
    • http://weather.asterholma.ax/uploads/1/3/0/6/130639082/zavukodel-vujuletag-vaxipedifapobo.pdfIn PDF document text
    • http://www.massagebyjennyb.com/uploads/1/3/0/5/130588588/9591544.pdfIn PDF document text
    • http://alisoncarrie.com/uploads/1/3/0/7/130775023/d730cf.pdfIn PDF document text
    • http://merrymanchiropractic.com/uploads/1/3/0/5/130545333/1316063.pdfIn PDF document text
    • http://thethairapycenter.com/uploads/1/3/0/3/130323491/1445048.pdfIn PDF document text
    • http://kharmarecords.com/uploads/1/3/0/6/130604226/guxal.pdfIn PDF document text
    • http://www.online2hero.com/uploads/1/3/0/8/130874180/6183503.pdfIn PDF document text
    • http://www.chelseacarrickcontent.com/uploads/1/3/0/5/130540209/8187878.pdfIn PDF document text
    • http://escape-the-friend-zone.com/uploads/1/3/0/7/130775563/merixelujuza.pdfIn PDF document text
    • http://tumblintimber.com/uploads/1/3/0/5/130543052/4269275.pdfIn PDF document text
    • http://bethlehemhouse.org/uploads/1/3/0/4/130435941/61e756df30f.pdfIn PDF document text
    • http://thebesticecreamandcoffeesolvang.com/uploads/1/3/0/6/130604742/2601635.pdfIn PDF document text
    • http://www.itreallyshouldntcostsomuch.com/uploads/1/3/0/6/130604425/4384043.pdfIn PDF document text
    • http://centerforculturalfitness.org/uploads/1/3/0/4/130483260/wulogujuw-lemenubeso.pdfIn PDF document text
    • http://pabstoberfest.com/uploads/1/3/0/3/130313249/4777686.pdfIn PDF document text
    • http://jbabyy.com/uploads/1/3/0/6/130640101/norumaperigitobub.pdfIn PDF document text
    • http://www.gsl.net.au/uploads/1/3/0/5/130588567/wuselotizo.pdfIn PDF document text
    • http://sundancecafenederland.com/uploads/1/3/0/5/130546497/roxuzelizapok-gefabekasoji-rolozim.pdfIn PDF document text
    • http://guardioesdeluz.com/uploads/1/3/0/6/130603709/4e80df630.pdfIn PDF document text
    • http://jehrv.slpny.com/uploads/1/3/0/5/130590367/130590367.html#autocad+2d+furnitureIn PDF document text
    • http://www.adobe.com/).NotoIn PDF document text
    • http://www.google.com/get/noto/http://www.adobe.com/type/ThisIn PDF document text
    • http://scripts.sil.org/OFLNotoIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003f84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F84 5244 bytes
SHA-256: afd8868629b61d85ec32a8a0de1ca84da82d48156cdd7447d7c4f51403cf5149
font_01_sfnt_off0000532d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x532D 9084 bytes
SHA-256: 1a2f36a0d80541d08029e7145e3997545e4f362396d86e821f96a6f19bd750ab

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