Malicious PDF — malware analysis report

Static analysis result for SHA-256 29dbf17f0b711734…

MALICIOUS

PDF

42.8 KB Authoring application: PDFBox
MD5: 01df108d6ab57f6fa63eaf6b51843a6e SHA-1: 3edeaca2ae826c08fcf2541f779964a756588fa3 SHA-256: 29dbf17f0b711734124ee9a9a8a5a6fe5fc2d81d13b304813dac2929dd5dc4db
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. This suggests a phishing or SEO poisoning attack, aiming to redirect users to potentially malicious content. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports the malicious nature of the file. No scripts were extracted from this sample, limiting the analysis of specific behaviors.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://cookingclassatthotupolaresidence.com/uploads/1/3/0/6/130603855/caac375c.pdf
    • http://iwannapc.com/uploads/1/3/0/4/130436040/8056886.pdf
    • http://20never.com/uploads/1/3/0/2/130291585/nedama.pdf
    • http://belljarcafe.com/uploads/1/3/0/5/130588650/5474156.pdf
    • http://moneylifelessions.com/uploads/1/3/0/5/130540592/779625.pdf
    • http://woxalugap.visitbilyarsk.ru/uploads/2020/01/29/e003645.pdf
    • http://yaldocargo.com/uploads/1/3/0/5/130590589/bemez-meropurezubo.pdf
    • http://poolpatioscreenrepairorlando.com/uploads/1/3/0/5/130548108/34ddefb84.pdf
    • http://hospicehangout.com/uploads/1/3/0/6/130604741/newajogudalu.pdf
    • http://rochecenter.org/uploads/1/3/0/7/130775865/130775865.html#grease+pencil+blender+2.8+demo

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001205.bin
0f6eff322c421f8c51c53b7caa41085b493a553ab1fd7370cf61b6303616848b
pdf-font-stream PDF embedded font (sfnt) at offset 0x1205 8136 bytes