Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea03761004cdf79d…

MALICIOUS

PDF

40.3 KB Authoring application: Inkscape
MD5: f3df0912cec12ba85814134c88e65b4c SHA-1: bd9710c70db086924b56182c8a9f41a1dda338e7 SHA-256: ea03761004cdf79d15fe653597e1ff80ae8972b8a2cc3f1e202db38c6ae951e0
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external websites, a technique commonly used for SEO poisoning and phishing. The ClamAV detection and ML classifier strongly indicate malicious intent. The document body, though partially corrupted, suggests a lure related to photo merging into a PDF, which is likely a pretext to drive users to the malicious link farm.

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://my-riverside-dui-lawyer.com/uploads/1/3/0/5/130551794/325eda19.pdf
    • http://eatlocalexpokc.com/uploads/1/3/0/6/130621511/bijovudej-xajularovoxikiw-kefasawosedeva.pdf
    • http://kahlynnstewart.org/uploads/1/3/0/5/130539128/11bb0077.pdf
    • http://www.arizonahscornholechampionship.com/uploads/1/3/0/6/130639648/dekuvoginus_masal.pdf
    • http://bayareaspark.com/uploads/1/3/0/2/130289424/gidebowudowa.pdf
    • http://www.carla-grace-blog.com/uploads/1/3/0/5/130550949/xarijefamilu.pdf
    • http://shannoncallarman.com/uploads/1/3/0/2/130287942/rexagu.pdf
    • http://poddlepublications.com/uploads/1/3/0/8/130874064/af9245f.pdf
    • http://adestramente.com/uploads/1/3/0/5/130588543/86763.pdf
    • http://amizidesigns.com/uploads/1/3/0/8/130873979/67ba243341462.pdf
    • http://amandamayberry.com/uploads/1/3/0/4/130435581/9877013.pdf
    • http://cocovonbonbon.com/uploads/1/3/0/5/130588199/fobugok.pdf
    • http://mgmalehair.com/uploads/1/3/0/5/130543318/mifamegubujod-buwujurogunubu.pdf
    • http://74-123-78-199.mgwnet.com/uploads/1/3/0/5/130588336/130588336.html#foto%27s+samenvoegen+in+pdf+bestand
    • http://my-riverside-dui-lawyer.com/uploads/1/3/0/5/130551794/32

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004364.bin
ea79bd59292fefd7390df760296ff781cff1dcb724dba5f37e7fd0b3086a5501		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4364 8776 bytes

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