Malicious PDF — malware analysis report

Static analysis result for SHA-256 34829014aacc7404…

MALICIOUS

PDF

34.8 KB Authoring application: Solid Converter PDF
MD5: dc836d9f1f0664f2cfb0aa2e9f8889ce SHA-1: e1effebabe898cb104f221cd2d4434014d104741 SHA-256: 34829014aacc74043d1054693c9f2c150859b14bbeb09558c24c82282d3f452b
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection and ML classifier strongly indicate malicious intent. The embedded URLs likely lead to further malicious content or phishing pages, serving as a lure to download additional payloads or compromise user credentials.

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://lilymere.com.au/uploads/1/3/0/5/130539309/6759659.pdf
    • http://ghstyle.es/uploads/1/3/0/6/130604508/ziwixezodim.pdf
    • http://cetefub.store/uploads/1/3/0/5/130588244/nukebamubifuvuzaf.pdf
    • http://snowdonia-estateforsale.com/uploads/1/3/0/6/130605206/pularanojimozofi.pdf
    • http://gereku.sunparkspb.com/uploads/2020/01/28/lotedodok-vuvatolukobug.pdf
    • http://mhrandlenovels.com/uploads/1/3/0/7/130776779/130776779.html#beginners+guide+to+ableton+live+9+lite

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010a8.bin
258982e36ad3f9c9f267e62d20c09deff9d0290ca80b62f9f4c92e01aae2a126		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A8 8304 bytes

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