Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd4069f311195af3…

MALICIOUS

PDF

39.6 KB Authoring application: Solid Converter PDF
MD5: 9901e1ab1569606df405455d58c8aebb SHA-1: 4aa5045164b7281845838ea7aaeffdb5b1ba28e2 SHA-256: dd4069f311195af37a9aee38f6359c886663623cc81cc23312c0697455658745
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The embedded URLs and the document body text, which includes a link to 'u-ehs.com', suggest a phishing or malware distribution campaign. The ClamAV detection further supports the malicious nature of the file.

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://u-ehs.com/uploads/1/3/0/6/130620399/movumeluwizufalesale.pdf
    • http://bettysmusic.com/uploads/1/3/0/5/130539202/3209aeaf5605e2.pdf
    • http://voxeluni.indieban.com/uploads/2020/01/28/xanukudokodirov.pdf
    • http://carlyberg.com/uploads/1/3/0/5/130539912/7252321.pdf
    • http://techyplus.net/uploads/1/3/0/7/130739699/seduvatorivarezudi.pdf
    • http://tar.supershopes.icu/uploads/2020/01/29/zusozizulasipilu.pdf
    • http://lonixu.lifecreditus.ru/uploads/2020/01/28/2817049.pdf
    • http://davidmarquesibanez.com/uploads/1/3/0/7/130775209/130775209.html#double+sided+adhesive+sheets+uk

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001173.bin
7f24921846a1c63afca55a54abfb3e84a0a787356fb5b3d2e5a08174ab27734f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1173 9524 bytes
font_01_sfnt_off0000600e.bin
d907c570f1f8f2d62f38d7529dbf77de46ca3a1917ec53aca7a78bae59874b04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x600E 2616 bytes

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