Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8a8c5e9d4e85e90…

MALICIOUS

PDF

38.6 KB Authoring application: Scribus First seen: 2020-09-24
MD5: 60e8374035a7b0aeda7093fa3b3ae96a SHA-1: 4dcdda209935ed0e62d4613348486e72554a9227 SHA-256: a8a8c5e9d4e85e9098b13291f34837d621104b780bda3e97515d68df5c6786bb
152 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file was identified as malicious by ClamAV with the signature Pdf.Phishing.TtraffRobotInstall-7605656-0. Static analysis revealed a large number of embedded external links, forming a link farm. These links predominantly point to other PDF files hosted on various domains, suggesting a phishing or SEO manipulation campaign. 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://ourbaptistheritage.org/uploads/1/3/0/5/130546574/9200360.pdf In PDF document text
    • http://leannephilip.com/uploads/1/3/0/3/130323930/zikobazani.pdfIn PDF document text
    • http://believethepromise.com/uploads/1/3/0/5/130550712/0783a9cb5fad35d.pdfIn PDF document text
    • http://sefopudur.ecpn.su/uploads/2020/01/28/zezosipenubi.pdfIn PDF document text
    • http://mylifebooks985.weebly.com/uploads/1/3/0/6/130621487/togukonika-tabapezefob-gumejipew.pdfIn PDF document text
    • http://kakek.vipiski-besplatno29.icu/uploads/2020/01/28/2e041f6.pdfIn PDF document text
    • http://zarerupusu.astys.ru/uploads/2020/01/28/neludewufokipixet.pdfIn PDF document text
    • http://naruebordin.com/uploads/1/3/0/4/130489072/dasudajuriziw-rikepoxazinezi-gibusigita.pdfIn PDF document text
    • http://christianawt.com/uploads/1/3/0/4/130488096/130488096.html#o+capital+2+boitempo+pdfIn PDF document text

Related samples 1

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_off00001274.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1274 9376 bytes
SHA-256: fa5d8e613025758b3bf1aaab1acb2560ff5a6016c02cccb954209ac62a165c35

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