Malicious PDF — malware analysis report

Static analysis result for SHA-256 19170996088d9a6f…

MALICIOUS

PDF

34.7 KB Authoring application: Scribus
MD5: b6f18c4d2c8847b794f66bfd442dfaf7 SHA-1: 439c5c425d8a996d0c00b4783067ffb8ea455d54 SHA-256: 19170996088d9a6fb2b6fa5204de83541b4fe49ebf4f52657125958b045b6cc6
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or redirection tactic. ClamAV also flagged this as Pdf.Phishing.TtraffRobotInstall, indicating a phishing or traffic redirection intent. The document body mentions a resignation letter, likely a lure to encourage interaction with the embedded links.

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 https://xonexipepa.weebly.com/uploads/1/3/0/5/130588668/4129541.pdf
    • http://africanubuntusafaris.com/uploads/1/3/0/4/130436399/vexeg.pdf
    • http://neasoto.com/uploads/1/3/0/5/130551671/dojezeg_guvaxolesan_popobo.pdf
    • https://lawolugenite.weebly.com/uploads/1/3/0/2/130272994/jazufixopajiz-jifopugajo.pdf
    • http://compassion-for-kids.org/uploads/1/3/0/6/130621330/vejugesiva.pdf
    • http://taw.cmcindia.org/uploads/2020/01/28/bukafifilegujijuda.pdf
    • http://branchlutheranschoolshaiti.net/uploads/1/3/0/5/130588640/6545377.pdf
    • http://kevinmenck.com/uploads/1/3/0/5/130588376/9637921.pdf
    • http://misssoutheastpageantry.us/uploads/1/3/0/5/130551607/130551607.html#resignation+letter+unable+to+serve+notice+period

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001205.bin
ec8c1877d2213a0da73225240fc46bbb31813aabba83d9764bc246a70e076203		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1205 8152 bytes

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