Malicious PDF — malware analysis report

Static analysis result for SHA-256 23c5e8993dccc9c9…

MALICIOUS

PDF

49.2 KB Authoring application: Soda PDF
MD5: 943a34d641ffcb03d0f74f21a65744fc SHA-1: ab1cdf009d4fda7a09970fefdc979dc1f55301af SHA-256: 23c5e8993dccc9c9346c6652a77186bb9646aec4602e48849930ce6b99b89d10
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 external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to other PDF files hosted on various domains. The ClamAV detection as 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://accidentalmuse.com/uploads/1/3/0/4/130483728/wojod_wanam.pdf
    • http://calhouncountywaspsandflies.org/uploads/1/3/0/5/130540567/mawazovekofan-wanagifi.pdf
    • http://jeffersonhigh.net/uploads/1/3/0/5/130540077/7022727.pdf
    • http://agl-llc.com/uploads/1/3/0/7/130738825/feref-wujepimijuwir-mamipaj.pdf
    • http://noahsteinman.com/uploads/1/3/0/5/130539102/mofoburagizemuba.pdf
    • http://kepler-associates.com/uploads/1/3/0/6/130620961/fomeranufagumaropi.pdf
    • http://generationchurchworship.com/uploads/1/3/0/5/130550914/fuvanusujug_zunedabupipofu_nesazuropoz.pdf
    • http://ot4kidsyangon.com/uploads/1/3/0/3/130323674/3484458.pdf
    • http://hipaawebcasts.com/uploads/1/3/0/2/130272319/73f5f4a3f4e7547.pdf
    • http://trentriverdesigns.com/uploads/1/3/0/4/130490193/130490193.html#blender+2.8+vs+maya+2018

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012c5.bin
19702eff37148b3ace4faf113cfd404093d87e9124b11901e2b35d7d91c251c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12C5 9348 bytes

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