Malicious PDF — malware analysis report

Static analysis result for SHA-256 860cfdf084473584…

MALICIOUS

PDF

47.5 KB Authoring application: Scribus
MD5: 7d0933bff24003fbafb0f7d50cef1c14 SHA-1: ab0c4276ec52c38edb0e911fafce2c964a4f81c7 SHA-256: 860cfdf084473584f6aa265f1a9040478bddfcb72be5e06283cd4dc7bcd7e3f1
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains a large number of external links to other PDF files, a technique commonly used in SEO spam and phishing campaigns to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious traffic redirection intent. The document body, though truncated, mentions 'free PDF to Word converter', indicating a lure to entice users to click on the embedded links.

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://www.blumeinternationalfoods.com/uploads/1/3/0/3/130313422/889023.pdf
    • http://hostmaster.extravertednerd.com/uploads/1/3/0/3/130313132/5950909.pdf
    • http://blackcatsculpture.com/uploads/1/3/0/6/130621290/9543081.pdf
    • http://delmontesupport.com/uploads/1/3/0/6/130639458/04377c91d8b2273.pdf
    • http://powerwashsystems.net/uploads/1/3/0/6/130639629/xovutugukemesibok.pdf
    • http://thaiskypix.com/uploads/1/3/0/8/130813400/biwomolikigofefu.pdf
    • http://server.avmat.com/uploads/1/3/0/7/130775949/598377.pdf
    • http://forgelouisville.net/uploads/1/3/0/6/130639733/459ab7.pdf
    • http://omgradine.com/uploads/1/3/0/6/130620873/notasotew.pdf
    • http://concoursocial.com/uploads/1/3/0/2/130289327/gesusofi_kunotewidob_kedajijoda_nadugu.pdf
    • http://root.hasaicogroup.com/uploads/1/3/0/5/130551599/4482893.pdf
    • http://divorcecoachchicago.com/uploads/1/3/0/5/130538985/546700.pdf
    • http://howtosoul.com/uploads/1/3/0/4/130435945/tutotimarunixi-munetewifixa.pdf
    • http://offishallifestyle.com/uploads/1/3/0/5/130551366/9279902.pdf
    • http://morellicup.com/uploads/1/3/0/3/130323173/sesezel.pdf
    • http://cpanel.storgebhs.com/uploads/1/3/0/5/130543772/130543772.html#logiciel+gratuit+pour+convertir+un+texte+pdf+en+word

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000050f5.bin
83459e82cebe561b9e65dda6a09953c9e35f75e5df0fa62a624e1833cc5b8086		 pdf-font-stream PDF embedded font (sfnt) at offset 0x50F5 1708 bytes
font_01_sfnt_off00005c6b.bin
662e2fc269e11f17cb600ab304538be567bf9eb7c12e949847b1a4fb2b06c121		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C6B 9800 bytes

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