Malicious PDF — malware analysis report

Static analysis result for SHA-256 947f199a981099e3…

MALICIOUS

PDF

36.4 KB Authoring application: LibreOffice Draw
MD5: 4082ca9962d1dd1299528be1da47d316 SHA-1: ea753dd2ba10faa3c14611c8b404a84a1b51915b SHA-256: 947f199a981099e304c50695e459b3aade79fa9c4c2038e2c76e604b5fad78f9
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF and HTML files hosted on different domains. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or malicious redirection intent. The document body is heavily obfuscated and does not provide direct clues, but the link farm structure strongly suggests a malicious redirection or phishing campaign.

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://riversplusguiding.com/uploads/1/3/0/2/130272083/nilivagelo.pdf
    • http://meridiapoint.com/uploads/1/3/0/3/130313358/4489a.pdf
    • http://devcaribe.com/uploads/1/3/0/6/130621525/sotifenajixuf.pdf
    • http://africanretreats.com/uploads/1/3/0/6/130639963/2011484.pdf
    • http://bernardobellostudio.com/uploads/1/3/0/5/130543025/130543025.html#pelco+sarix+ixs0dn

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001170.bin
05b9e8ffd2b082e4406c8bfad3a41e8188f09d9684483b0160fd16c3093b4eef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1170 8352 bytes

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