Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e3ba585fc40e325…

MALICIOUS

PDF

41.4 KB Authoring application: LibreOffice First seen: 2020-09-24
MD5: 7d32358b24b9b9b8cdf7e4824bf0fdb9 SHA-1: a3927b78c529769a73c69414d0318fe83d505c5e SHA-256: 9e3ba585fc40e325798c3c235d73cf137532d5dfa6d0246b3a189da3e30a289b
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files hosted on various domains. This technique is commonly used for SEO poisoning or to redirect users to malicious content, as indicated by the 'PDF_SEO_LINK_FARM' heuristic. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://minestarters.net/uploads/1/3/0/2/130287896/3ca31bf7294718c.pdf In PDF document text
    • http://nourishandthriveforlife.com/uploads/1/3/0/4/130488295/tiburelovuzuda_verozof.pdfIn PDF document text
    • http://holygifting.com/uploads/1/3/0/5/130543057/2170765.pdfIn PDF document text
    • http://sellingtob2bcompanies.com/uploads/1/3/0/5/130589048/97a819.pdfIn PDF document text
    • http://www.clovermagazine.com/uploads/1/3/0/5/130588349/tarunuk.pdfIn PDF document text
    • http://nicksportsmassagetherapy.com/uploads/1/3/0/7/130775176/1fa46ec0d.pdfIn PDF document text
    • http://robertelsner.com/uploads/1/3/0/5/130588922/2165996.pdfIn PDF document text
    • http://benyjuana.com/uploads/1/3/0/7/130776409/1951518.pdfIn PDF document text
    • http://ideaball.com/uploads/1/3/0/3/130323518/a9f826743e1.pdfIn PDF document text
    • http://globalgraphicdesigns.com/uploads/1/3/0/4/130489437/b77315734d.pdfIn PDF document text
    • http://newzealandcreativespacesstudioweebley.com/uploads/1/3/0/2/130271179/lotexenidomapotep.pdfIn PDF document text
    • http://mustardgreen.net/uploads/1/3/0/6/130603814/f181fb.pdfIn PDF document text
    • http://farmlawyer.com/uploads/1/3/0/8/130874386/8709508.pdfIn PDF document text
    • http://new-victory.site/uploads/1/3/0/5/130590312/gofuxujadulajefe.pdfIn PDF document text
    • http://mrswaterfiremold.net/uploads/1/3/0/7/130739802/wozap-fogabeledarevek-tanokaregak-jekuzako.pdfIn PDF document text
    • http://bokobowls.com/uploads/1/3/0/4/130483426/zeniwazovaxorat-batof-petime-vubimi.pdfIn PDF document text
    • http://shoppivotalchocolates.com/uploads/1/3/0/7/130775203/9889243.pdfIn PDF document text
    • http://flgit.com/uploads/1/3/0/7/130739853/rakad_jovupalekajel.pdfIn PDF document text
    • http://jaguartracks.com/uploads/1/3/0/5/130589287/8c9dfd9.pdfIn PDF document text
    • http://yinghuangwangshangyule.br3h.com/uploads/1/3/0/9/130969169/130969169.html#short+acting+beta+2+agonist+mechanism+of+actionIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000341a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x341A 2864 bytes
SHA-256: 6dc6e07f93ae70488a19e8a398a1c6cda2f5723fc3d3cbe180c5afbb10c3611e
font_01_sfnt_off000040ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40CE 8784 bytes
SHA-256: b493b608ece1e16ea0e91fb2de7e98df88d758371b740f180d432762df61af37