Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec07e3d5b1375a89…

MALICIOUS

PDF

33.1 KB Authoring application: PDF Studio
MD5: 38074ed70b3be02bd544c0a1bc79b7f6 SHA-1: d192c3bdcf849db709bb3bbebf0180d60df5bb28 SHA-256: ec07e3d5b1375a8924c55d89df8999dd7129b9e5191df138e1d3fe8e36cb6244
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical finding for a PDF link farm and ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0. The document body contains numerous embedded URLs pointing to other PDF files hosted across various domains. This suggests a phishing or SEO-based distribution campaign, where the primary goal is to redirect users to a network of malicious or deceptive content. No scripts were extracted from this sample.

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://candlesmedia.com/uploads/1/3/0/5/130539840/nasewupif_sexevelavo_pijimofupuvab.pdf
    • http://httpnewsleve.info/uploads/2020/01/27/zipavivov.pdf
    • http://michelewestlaken.com/uploads/1/3/0/6/130604947/wesaxosezuwejiraxoso.pdf
    • http://ribbonbowsandmore.com/uploads/1/3/0/5/130588607/407208.pdf
    • http://rbaltazar.com/uploads/1/3/0/4/130436093/novimofe.pdf
    • http://cartiercouturee.com/uploads/1/3/0/2/130291624/mebotoxiwegijava.pdf
    • http://rav.mansbestfriendmemorial.com/uploads/2020/01/27/1524813.pdf
    • http://keno.komokom.ru/uploads/2020/01/27/56f9b295.pdf
    • http://sauerlandhypotheek.nl/uploads/1/3/0/5/130589198/130589198.html#space+occupying+lesion+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001154.bin
42a7f3cc7a6d78d7457b37ddee2bd9f88169a8bc3525bd1b7839ce1c77749b0d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1154 7648 bytes

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