Malicious PDF — malware analysis report

Static analysis result for SHA-256 992fbe5b3361851a…

MALICIOUS

PDF

34.2 KB Authoring application: Solid Converter PDF
MD5: 4d64a5fc512b0d164c95239c65a69752 SHA-1: 3c8e587e643c285757117668ccff36584400acd6 SHA-256: 992fbe5b3361851a1a2b072d9237933a2737bef2e713b0efdb73b28d7a7463a0
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF documents, a technique often used for SEO spam or to distribute malware. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent, likely related to phishing or traffic redirection. No scripts were extracted from this sample.

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://mimariposadesigns.com/uploads/1/3/0/6/130603982/59d568ed333d045.pdf
    • http://calluponthename.com/uploads/1/3/0/3/130379696/5dc827b.pdf
    • http://delgiacconeuroarttherapy.com/uploads/1/3/0/5/130551229/tomari.pdf
    • http://donnezonline.com/uploads/1/3/0/6/130639856/5659877.pdf
    • http://zawidezitu.ladies.wine/uploads/2020/01/28/dolotiludutidoguxig.pdf
    • http://mysustainablefashion.com/uploads/1/3/0/7/130739286/98cf715935.pdf
    • http://obgynassociatespc.com/uploads/1/3/0/5/130538866/c4e3d6b509d.pdf
    • http://myhempisbomb.com/uploads/1/3/0/4/130435701/9294f156585.pdf
    • http://baltazarsautos.com/uploads/1/3/0/6/130621698/kolufuw.pdf
    • http://mercertruckaccessories.ca/uploads/1/3/0/5/130546759/e3cd1.pdf
    • http://kylaconner.com/uploads/1/3/0/6/130604247/130604247.html#mastodon+show+yourself+lyrics

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011c7.bin
091604796eb36538172688aaa7632aad7f2137ad8469464f7325a95b5e4ba6c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11C7 6856 bytes
font_01_sfnt_off00003bfd.bin
598b436daaf3d122157f8aae4d95cb5f98998d7541b527c84c982bd0659a624f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3BFD 16888 bytes

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