Malicious PDF — malware analysis report

Static analysis result for SHA-256 c492371844ea9752…

MALICIOUS

PDF

33.7 KB Authoring application: Soda PDF
MD5: 7bf24a490112b7723b65e29420188a7f SHA-1: 2ec11180a9db7df5d0064c61b86f768649d8a5bd SHA-256: c492371844ea97523a3cc71b681a249872beded169e9732e7dfdddec30e847c1
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or malicious redirection intent. The document body, though partially obfuscated, contains URLs that are also listed in the extracted URLs, reinforcing the link farm attack pattern.

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://scoutx.us/uploads/1/3/0/5/130588712/gudumaxapukute.pdf
    • https://tekopejav.weebly.com/uploads/1/3/0/4/130483331/1587461.pdf
    • http://mumugepina.saojose.online/uploads/2020/01/28/navasetugedufev-sivat.pdf
    • http://nonreligiousspiritual.com/uploads/1/3/0/5/130590637/82d7b4a.pdf
    • http://nux.angrybirds.tech/uploads/2020/01/28/4697718.pdf
    • http://wesleyhooks.com/uploads/1/3/0/5/130550797/55a8865e4ef.pdf
    • http://northwestpetsupplies.com/uploads/1/3/0/3/130323894/dujirevexew.pdf
    • http://newperspectivemedical.com/uploads/1/3/0/6/130621874/130621874.html#recent+articles+on+animal+cruelty

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000114c.bin
fb19c98c7b165a676943c99c32b49b5c693c137cb76fc23ae831f77c1acebc3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x114C 7628 bytes

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