Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab59f5a8090a8772…

MALICIOUS

PDF

42.0 KB Authoring application: QPDF
MD5: 585fee9e1042134f8ffd6da8f790cc3a SHA-1: da79e41f97322b604100bfb31f1d26fa641aaefe SHA-256: ab59f5a8090a8772215b984d123f346de1438de16ee6310ec8d51aa1d2e4a8f7
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further suggests a phishing or malicious redirection intent. The embedded URLs are likely used to redirect users to malicious content or download further payloads.

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://wubiwajum.sparepartsjumberca.com/uploads/2020/01/29/kerovixurufupoz.pdf
    • http://cluesescaperoom.com/uploads/1/3/0/6/130640107/boxopoxagavavi_zozagu_falukovevopi.pdf
    • https://mikitafosikivu.weebly.com/uploads/1/3/0/5/130552055/4e3de2cb6870ba8.pdf
    • http://marigogam.newneonaslimm.com/uploads/2020/01/29/73ba59f853733b.pdf
    • http://zosek.newtourist.ru/uploads/2020/01/29/salowiv_kinipanasetar.pdf
    • http://rachaellust.com/uploads/1/3/0/5/130542940/5519978.pdf
    • http://2020blue.org/uploads/1/3/0/6/130639770/130639770.html#airforce+y+group+syllabus+download

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012bd.bin
ee5f18cc24b08c57556d4c58fb82456d0fb254fea90f9d684ebc042f19a99381		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12BD 7904 bytes
font_01_sfnt_off0000590a.bin
361da5ae550aa98aeeac4b741a258a0368c7f7449de65fb383bb7b7d2bc279ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x590A 9612 bytes

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