Malicious PDF — malware analysis report

Static analysis result for SHA-256 81267b8544fb1b4f…

MALICIOUS

PDF

36.3 KB Authoring application: Scribus First seen: 2020-09-24
MD5: 642ed2f26bf6f205986c66d07fb1416f SHA-1: d76fbc311933b243921e25fa6db8a98eb238bd63 SHA-256: 81267b8544fb1b4fcc29d4e7038b2b1a85207585e68205742ce533a41b3ae486
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many of which point to other PDFs, suggesting a link farm designed to distribute malicious content. The ClamAV detection and ML classifier strongly indicate maliciousness, likely related to phishing or malware distribution. The embedded URLs are the primary indicators of compromise, likely serving as download locations for further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://tenantfocusedinteriors.net/uploads/1/3/0/5/130543539/purimerulopubeso.pdf In PDF document text
    • http://dafa888yulekaihu.f18.ebkf.org/uploads/1/3/0/4/130435581/f58ff.pdfIn PDF document text
    • http://drfilldental.com.au/uploads/1/3/0/7/130740464/81fc1f8.pdfIn PDF document text
    • http://mta-sts.tpexcavate.co.za/uploads/1/3/0/6/130605044/ff2fe072028fc.pdfIn PDF document text
    • http://skunkremovalknoxville.com/uploads/1/3/0/7/130740414/vujemow-vulujavoredeva-sizusome.pdfIn PDF document text
    • http://www.rrchildrenscentre.com.au/uploads/1/3/0/8/130874451/jukomunevuvune.pdfIn PDF document text
    • http://libowangshangyule.f18.ebkf.org/uploads/1/3/0/6/130604198/6796080.pdfIn PDF document text
    • http://kcmwebco.com/uploads/1/3/0/7/130738559/wekufototubufox_zuvumuw_mafotiwujeluli_nuloga.pdfIn PDF document text
    • http://rearwindowphotography.com/uploads/1/3/0/6/130620337/34a19598b97.pdfIn PDF document text
    • http://baldwincapital.com/uploads/1/3/0/8/130813975/taxudarezitijasowiz.pdfIn PDF document text
    • http://www.allthingsroe.com/uploads/1/3/0/4/130477028/fa570f9a.pdfIn PDF document text
    • http://bevingroup.com/uploads/1/3/0/6/130604497/darokeripe_xixaxirakalo_lebagafo.pdfIn PDF document text
    • http://aovave.com/uploads/1/3/0/7/130738911/9e7a2b91532.pdfIn PDF document text
    • http://1stpage.co.nz/uploads/1/3/0/7/130775071/82bc33d5fd1a.pdfIn PDF document text
    • http://gordoncraigcpa.com/uploads/1/3/0/6/130604470/wudomizigetije.pdfIn PDF document text
    • http://christmaswishesbook.com/uploads/1/3/0/6/130604860/xujotajobapogo-kofamoturenelol.pdfIn PDF document text
    • http://hostmaster.aiyso.org.uk/uploads/1/3/0/2/130272281/773bf2.pdfIn PDF document text
    • http://ketopages.com/uploads/1/3/0/7/130739449/voniropu.pdfIn PDF document text
    • http://derekparker.design/uploads/1/3/0/5/130543575/820231.pdfIn PDF document text
    • http://mmshop.club/uploads/1/3/0/2/130288559/7eaece1289278d.pdfIn PDF document text
    • http://sta-66-99-58-192.ladse.org/uploads/1/3/0/9/130969459/130969459.html#ec6009+advanced+computer+architecture+important+questions+pdf%2AIn PDF document text
    • http://www.character.ua.edu/uploads/1/3/0/5/130551125/6446252.pdfIn PDF document text

Related samples 2

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

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002cc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC7 7952 bytes
SHA-256: c02b303d71c653f6059e8ffaec0bbbe53bbf35feea70e55fa43f6f1f001b3599

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