Malicious PDF — malware analysis report

Static analysis result for SHA-256 6205161b119ae089…

MALICIOUS

PDF

29.7 KB Authoring application: Soda PDF
MD5: 502534420b2f28455410934b5f25ec2c SHA-1: 8f2952f02aa110a7821c4b4a1f2adff36649433a SHA-256: 6205161b119ae089ccebe98fa7b3a3050b8adcea9521d3e89ede86d6a364c958
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links to other PDF files hosted on unrelated domains, indicative of a link farm or SEO abuse. ClamAV identified the file as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', and an ML classifier also flagged it as malicious. The embedded URLs are the primary IOCs, suggesting a phishing or malicious redirection campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://carlsbadcleaningservices.com/uploads/1/3/0/4/130489386/ca8993bf2b75f.pdf
    • http://compoundskin.com/uploads/1/3/0/5/130543320/943e6fae0d55.pdf
    • http://45northfarm.com/uploads/1/3/0/6/130639578/33053d28124.pdf
    • http://bodyworkbybarb.com/uploads/1/3/0/3/130323268/130323268.html#auma+valve+actuators

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000f56.bin
89db35b3e0d0c819c8ad9b10987ae7a6ac0259f4207fc6adecd9296b6a6b3592		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF56 8432 bytes

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