Malicious PDF — malware analysis report

Static analysis result for SHA-256 c83c3ef980b9d9e7…

MALICIOUS

PDF

34.7 KB Authoring application: LibreOffice
MD5: 590b151d4b77a664b6c89be85d33fbe2 SHA-1: e000c2d739d377c78fe64650cc53d2ed03fe0921 SHA-256: c83c3ef980b9d9e72b4cc8ec55fe85b9f4f5631635b23a05601e9a5d6194dabc
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body, though partially corrupted, mentions 'Beige colour formal shoes' and includes URLs that appear to be part of a link farm. This suggests a phishing or scam attempt where the user is lured to malicious sites under the guise of product information. The ClamAV detection further supports its malicious nature.

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://tuv.kuhnimsc02.icu/uploads/2020/01/28/vagojita.pdf
    • http://jeremyhammer.com/uploads/1/3/0/2/130272440/8642565.pdf
    • http://mochisprite.com/uploads/1/3/0/3/130379590/d26ae6703.pdf
    • http://emilyschider.com/uploads/1/3/0/2/130270837/8b9738b8858e4f.pdf
    • http://mymindfulconnections.com/uploads/1/3/0/5/130589122/130589122.html#beige+colour+formal+shoes

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000fe1.bin
5434ccd8fb405a1ee1c3ae064409e6937b97ed6a34b7d3bba11f108257a69f57		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFE1 8572 bytes

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