Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ede06f768a8ee78…

MALICIOUS

PDF

35.0 KB Authoring application: PDFBox
MD5: 687992d0c9310ac937109a1f626c60bf SHA-1: a9ddd626c810c5a808ffeee2124babf8885ac55f SHA-256: 7ede06f768a8ee78e974435340ab0f8e00c09c28e45df54c8dab2a9afabac7fd
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains a large 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 content distribution network. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://700unionblvd.com/uploads/1/3/0/6/130604615/sexurako.pdf
    • http://moderndayman.org/uploads/1/3/0/3/130323209/voxabeda.pdf
    • http://stejournal.com/uploads/1/3/0/6/130622111/dajanu.pdf
    • http://laganbuildingsolutions.net/uploads/1/3/0/8/130814258/fuzugozel.pdf
    • http://mrsdsmithsthirdgrade.com/uploads/1/3/0/5/130590596/2552261.pdf
    • http://buildclicks.com/uploads/1/3/0/4/130488312/novomufot.pdf
    • http://mpassociatesrealtors.com/uploads/1/3/0/2/130270873/624d40.pdf
    • http://alisonhehir.com/uploads/1/3/0/7/130776073/32cf951.pdf
    • http://inkofficial.com/uploads/1/3/0/4/130483986/2312d1d.pdf
    • http://andersonandhartlaw.com/uploads/1/3/0/7/130776743/sajotasubipo.pdf
    • http://hastemodz.net/uploads/1/3/0/6/130603946/ladozufidep.pdf
    • http://coinsofthetrade.com/uploads/1/3/0/4/130489044/ruwes.pdf
    • http://engineeredbydesign.net/uploads/1/3/0/6/130621542/ad20c6.pdf
    • http://hudongwangluoqipaiyouxi.br3h.com/uploads/1/3/0/3/130379342/130379342.html#agaricus+blazei+powder

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f53.bin
9fcb65310e3f4d077cf487cd6bdb1380aaeefb982c86f0ccfdf33ce0e4ddc63f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F53 8184 bytes

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