Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba23ee9ee1b80d1d…

MALICIOUS

PDF

39.4 KB Authoring application: GIMP
MD5: 56b7e8513c3e4967b9ae814f32d4a1b0 SHA-1: ee2b7321a5a00d28715995c929b0170abb8c3f1b SHA-256: ba23ee9ee1b80d1d207986d60e47baa7745b243177427ea151101d22bdd94cce
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF files hosted on various domains, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection of Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious intent, likely related to phishing or traffic redirection. The document body contains text related to 'design thinking templates' which serves as a lure, and also includes many of the extracted URLs.

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://southwesterntennisservices.com/uploads/1/3/0/6/130620687/xepal.pdf
    • http://msandtherapist.com/uploads/1/3/0/4/130483773/8a20d4.pdf
    • http://newburyparkacupuncture.com/uploads/1/3/0/5/130540197/3687764.pdf
    • https://lizekogos.weebly.com/uploads/1/3/0/5/130547150/sagimiwetuvono.pdf
    • http://goxatuj.chinaonlinebusiness.xyz/uploads/2020/01/28/3270eaa1ff84.pdf
    • http://cafeheine.weebly.com/uploads/1/3/0/6/130621209/6346446.pdf
    • http://camryncs.com/uploads/1/3/0/2/130270845/8279593.pdf
    • http://seattleyouthbasketballfoundation.com/uploads/1/3/0/4/130476272/kakisekoku.pdf
    • http://algaebookandpaper.com/uploads/1/3/0/6/130640174/sikibakidemupab-buzoseminex-baranu-jifowo.pdf
    • http://tschiffely-trail.eu/uploads/1/3/0/5/130589160/130589160.html#design+thinking+templates+teaching+exercises

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000125d.bin
baf56a005984856d288690df52d9b4ad6d95ca2f728451294f5843771c3b6bf9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x125D 8448 bytes

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