Malicious PDF — malware analysis report

Static analysis result for SHA-256 94349220e50a5e4c…

MALICIOUS

PDF

32.9 KB Authoring application: Karbon
MD5: f70cc760c1730dc00b98cf884f123665 SHA-1: b2108423d08cd04a5d00083cf0c1fedc6f78eced SHA-256: 94349220e50a5e4caab955a38dabff97758b9bd784a7e45e6040c31487cca654
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or phishing. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly indicate malicious intent. The document body contains references to 'Lysol disinfectant spray msds sheets' and lists multiple URLs, suggesting a lure to potentially malicious content.

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://darrenschmidtcomposer.weebly.com/uploads/1/3/0/6/130605387/2363576.pdf
    • http://theabdy.com/uploads/1/3/0/2/130291696/a90e42ea6.pdf
    • http://northbaygarageservice.com/uploads/1/3/0/6/130620451/8213338.pdf
    • http://reveil-corporel.com/uploads/1/3/0/4/130435990/a276a9.pdf
    • http://mrgilladvice.com/uploads/1/3/0/6/130620614/fevavurerola.pdf
    • https://muxaferal.weebly.com/uploads/1/3/0/2/130272955/3de5c9c3.pdf
    • http://beesea.com/uploads/1/3/0/2/130271116/rapurari-vaxaxepa.pdf
    • http://scubatribemaldives.com/uploads/1/3/0/6/130621367/130621367.html#lysol+disinfectant+spray+msds+sheets

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001103.bin
0668afb8f4aad0ab468124f5e5220336e930a39d17171666d4a507665adce631		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1103 8336 bytes

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