Malicious PDF — malware analysis report

Static analysis result for SHA-256 4395ce23726c00cd…

MALICIOUS

PDF

30.7 KB Authoring application: Serif PagePlus
MD5: d49d3a695a349f88ae4d92163c3d2818 SHA-1: 867a6700c97b699fbd34a1ca0b4296764e07d7f8 SHA-256: 4395ce23726c00cd00780d1fb9bc3c2a3c3a2d5ea264cada2a5a0f0c64ab2c5d
150 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to other PDF files hosted on various domains, suggesting a link farm or redirection mechanism. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious classification. The document body contains irrelevant text mixed with URLs, indicating a potential lure or obfuscation technique.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://nashmir.net/uploads/1/3/0/6/130639580/pirominodal_fapirenoluped_rodad_pekakipomatapof.pdf
    • http://pogegraphicdesign.com/uploads/1/3/0/6/130639333/54d03e.pdf
    • http://trickortri.com/uploads/1/3/0/4/130489926/292ceb5ecbd7926.pdf
    • http://mgetsinslp.com/uploads/1/3/0/4/130488891/ruvosazaxezewataxo.pdf
    • http://dancinggoatsanctuary.com/uploads/1/3/0/5/130543878/130543878.html#acer+aspire+one+zg8+spare+parts

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001044.bin
8744a5d72ad8a68611c977081485976f7253d360a139ebd2f2ab2f1626ba663d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1044 8640 bytes

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