Malicious PDF — malware analysis report

Static analysis result for SHA-256 3510d9a313905a46…

MALICIOUS

PDF

43.7 KB Authoring application: ImageMagick
MD5: 5c98a526ef7ec006ce3669dff42f3333 SHA-1: 5c3f45b0fee2efac74990074e2968df4a14efc87 SHA-256: 3510d9a313905a46fc75c70c2b9492465e942341fb1da3b109b0e06c7b1d02c9
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs pointing to other PDF documents hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content, as suggested by the 'PDF_SEO_LINK_FARM' heuristic. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. No scripts were extracted from this sample, limiting the analysis of direct payload execution.

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 https://birumeragam.weebly.com/uploads/1/3/0/5/130588187/2826159.pdf
    • http://easyfootcare.com/uploads/1/3/0/5/130545333/rinuvigunexunige.pdf
    • http://adriantippetts.com/uploads/1/3/0/4/130489001/relazitim.pdf
    • http://porscheaphotography.com/uploads/1/3/0/2/130291939/3196113.pdf
    • https://xodufokuzot.weebly.com/uploads/1/3/0/2/130289480/govolodidebavoxo.pdf
    • http://zuiderhavendijkconcert.com/uploads/1/3/0/2/130270823/lugukolezez.pdf
    • http://gisew.3kopeiki.ru/uploads/2020/01/28/12f7c.pdf
    • http://coloradoartclass.org/uploads/1/3/0/6/130604516/f522b6d84a5b2c.pdf
    • http://themusictheater.com/uploads/1/3/0/2/130287946/6abbced10c.pdf
    • http://themusictheater.com/uploads/1/3/0/5/130539185/puxomegofikelopiweti.pdf
    • http://westcoastpawstransport.com/uploads/1/3/0/5/130589145/rorebuli-pilaxu-binomixomu.pdf
    • http://misbailes.com/uploads/1/3/0/5/130551472/130551472.html#flashing+doorbell+for+hearing+impaired

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000131e.bin
b8318d70ddcfeea24938ac7e1d2a7df971e4d2f557d9d9eb9801ce10f733976d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x131E 8696 bytes

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