Malicious PDF — malware analysis report

Static analysis result for SHA-256 d13cb224aa2f1b6d…

MALICIOUS

PDF

41.7 KB Authoring application: Serif PagePlus
MD5: b2492a9652cd238c8af1c6f136b4396d SHA-1: fe448c21368ddc822118a21f238da7d2753da85e SHA-256: d13cb224aa2f1b6da510c3daef4215d9cb69732352f6a2ced7a56925b53c3b3c
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to redirect users to malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly indicate malicious intent. The embedded URLs are the primary IOCs, suggesting a phishing or redirection campaign.

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://thel14.com/uploads/1/3/0/7/130739159/zukigarokag.pdf
    • http://oslorelocationservices.com/uploads/1/3/0/3/130313426/2159401.pdf
    • http://ctmpropertymanagementsc.com/uploads/1/3/0/3/130323465/e6d56e651114ab.pdf
    • http://muscatmassage-service.com/uploads/1/3/0/4/130483193/migalakaleto.pdf
    • http://001radio.com/uploads/1/3/0/5/130588551/9028501.pdf
    • http://sonoratradingpost.net/uploads/1/3/0/2/130272442/573ca2e79489.pdf
    • http://tiffinindia.ca/uploads/1/3/0/5/130589295/36915e17cf.pdf
    • http://bhmiii.com/uploads/1/3/0/5/130590589/xakuvebu.pdf
    • http://myfineswine.com/uploads/1/3/0/3/130313005/b22df6737b3.pdf
    • http://krystalsforthespirit.com/uploads/1/3/0/6/130621801/najonubupo.pdf
    • http://nationalfootballcheerleadersalumni.org/uploads/1/3/0/5/130545666/130545666.html#barfu%C3%9F+am+klavier+annenmaykantereit

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000133a.bin
6cafded8ada83e1bf00772d9e8224d5b7d14c9eb10ddd242d58a5dfb02d8f25f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x133A 13376 bytes

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