Malicious PDF — malware analysis report

Static analysis result for SHA-256 f968a50d7f77a898…

MALICIOUS

PDF

36.2 KB Authoring application: Soda PDF
MD5: 35b77e3cba3887b63cd7d9bed4b509a4 SHA-1: 053e359eec885293a208c5aee4caf83c31c2401c SHA-256: f968a50d7f77a89885fd18f0952bb46b7b969a4c723c909f19c468c3bc4b90f2
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF files hosted on different domains. This behavior is indicative of SEO poisoning or a phishing campaign designed to drive traffic to malicious or compromised websites. The ClamAV detection of 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://sajodalise.pornoizler.site/uploads/2020/01/28/2281396.pdf
    • http://anthonymassarotto.com/uploads/1/3/0/4/130436451/e585346.pdf
    • https://wijibisikenod.weebly.com/uploads/1/3/0/5/130544968/581fff2d8d5ec.pdf
    • https://nasazutebil.weebly.com/uploads/1/3/0/5/130589312/fiwokozodakejilufuj.pdf
    • http://urbanfreshfarms.biz/uploads/1/3/0/5/130589009/4c5023fa5c.pdf
    • http://rosopifej.kuhnimsc08.icu/uploads/2020/01/28/xukewufikupez.pdf
    • http://stoneandsageapothecary.com/uploads/1/3/0/6/130620781/larozoba.pdf
    • https://sasawibow.weebly.com/uploads/1/3/0/6/130604945/5964455.pdf
    • http://originalmailboxcompany.com/uploads/1/3/0/4/130436521/4028d7c72ef.pdf
    • http://bc-observations.com/uploads/1/3/0/3/130323635/butusitu-nufuzexepowid.pdf
    • http://newbreedbrewchews.com/uploads/1/3/0/2/130291589/130291589.html#dark+imdb+parents+guide

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012e0.bin
d60ef110e02d1ca02a9d10b65e7b9a20492df06bcb56b1b4f2a9d005f4a1d3c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12E0 9156 bytes

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