Malicious PDF — malware analysis report

Static analysis result for SHA-256 b13a49e8112b15a0…

MALICIOUS

PDF

34.7 KB Authoring application: PDFedit
MD5: 1d8c454833efaf6a3a61c4b2bd94f19a SHA-1: 0ce4f78c03b7307381173b62b16b974f60903740 SHA-256: b13a49e8112b15a00f50a70703eb8f33c632e56e8022249e9e8c123d4766dfa5
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. This suggests a phishing or redirection campaign. ClamAV also identified this as Pdf.Phishing.TtraffRobotInstall-7605656-0, further supporting a malicious intent. No scripts were extracted from this sample.

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://www.g5livestockllc.com/uploads/1/3/0/6/130639632/teziliwigikope.pdf
    • http://www.dynamicsleepconnection.com/uploads/1/3/0/8/130873946/856e88a27769b.pdf
    • http://enterteaning.com/uploads/1/3/0/6/130639146/sexof.pdf
    • http://revivabaths.net/uploads/1/3/0/6/130603737/9563802.pdf
    • http://radioroundtube.org/uploads/1/3/0/6/130639581/6eda9ad.pdf
    • http://urbanrips.com/uploads/1/3/0/6/130621457/nokevozowimusuk.pdf
    • http://karraschconsulting.com/uploads/1/3/0/4/130489006/xejizatupane.pdf
    • http://newfilmmakersadventure.com/uploads/1/3/0/4/130483047/673466.pdf
    • http://accessconsciousness7day.com/uploads/1/3/0/7/130738889/dubunugoj.pdf
    • http://trialhunter.com/uploads/1/3/0/3/130323707/xodijemojolobow_nigelesudav_sopeduges_fizomegoxubeb.pdf
    • http://store.themovementdr.net/uploads/1/3/0/4/130483337/9916325.pdf
    • http://www.pureexistencedance.com/uploads/1/3/0/4/130483903/130483903.html#3+x+2+concentric+reducer+dimensions
    • http://trialhun

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003124.bin
d560cdf5108ee73d0d24cc7bd1430aebcbb079f859b60d87cbf9b3fbdddb5002		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3124 7728 bytes

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