Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fe06b658596b02f…

MALICIOUS

PDF

42.4 KB Authoring application: Poppler-utils
MD5: 2f9c718e1f5937e6a32df53192883c76 SHA-1: 8ecbbb0a3f59430574c03241f43521e0e236d6f1 SHA-256: 6fe06b658596b02f08a4d50e7c22656dfd265fe2f6d03694cb4a8c34e7bef2b5
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded external links, identified as a PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting an attempt to manipulate search engine results or distribute additional malicious content. The ClamAV detection and ML classifier further support the malicious nature of this file. No scripts were extracted, but the embedded URLs are the primary indicators of malicious activity.

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://meraglimholdings.com/uploads/1/3/0/3/130379681/zivafarunub-wamatas-pumajoze-katodevawufomax.pdf
    • http://0to100.ca/uploads/1/3/0/6/130604874/vebazobefiwefeso.pdf
    • http://carterskennel.com/uploads/1/3/0/6/130603776/gewepezu-gixij-wofalanomas.pdf
    • http://minutodecoracao.com/uploads/1/3/0/6/130639027/4562939.pdf
    • http://numinersfootball.com/uploads/1/3/0/6/130604429/9702ac36f.pdf
    • http://jvwritingv2.club/uploads/1/3/0/6/130639110/4305027.pdf
    • http://newtampatraillife.com/uploads/1/3/0/6/130620399/531456.pdf
    • http://laceramica.studio/uploads/1/3/0/4/130483187/bec018812c3458.pdf
    • http://podollangpis.devsite-1.com/uploads/1/3/0/5/130541351/130541351.html#fifa+world+cup+2018+group+e+standings

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012c7.bin
def44dd67cedb4462d0684368a2a3bbc487efe5fcc577b16f041c53a24e3c953		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12C7 11160 bytes

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