Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b11dc0efda6ba98…

MALICIOUS

PDF

33.9 KB Authoring application: Poppler-utils
MD5: 869065af6d93526980e0bffa2a562cf4 SHA-1: 57c97d9ee884b379c068eca36fc789643e3cdd8a SHA-256: 3b11dc0efda6ba980fb2bf84f5a315cda66c6255b35c69bd38d863f9839cd697
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded external links, a technique often used for SEO poisoning or to redirect users to phishing or malware distribution sites. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. No scripts were extracted, limiting the analysis of direct malicious actions.

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://smithsystemsus.weebly.com/uploads/1/3/0/4/130476555/fufivebag-kunofa.pdf
    • http://priorityjump756.weebly.com/uploads/1/3/0/2/130270763/burumomomulabekez.pdf
    • http://boiserealestatejournal.com/uploads/1/3/0/5/130551072/legiwire-saxalurokeg.pdf
    • http://miguelchanonafotografo.com/uploads/1/3/0/2/130289480/42e9b7117f2.pdf
    • http://returningtocompassion.org/uploads/1/3/0/3/130313053/jopufuvopemisofa.pdf
    • http://mind4age.com/uploads/1/3/0/6/130620578/9061cca898.pdf
    • http://easternshorechess.com/uploads/1/3/0/5/130551192/5716a138365b.pdf
    • http://safesense.net/uploads/1/3/0/4/130476102/5710987.pdf
    • http://azseniorresourcesandmore.com/uploads/1/3/0/5/130588679/919f0edc119.pdf
    • http://simplycorkie.com/uploads/1/3/0/3/130313429/9157014.pdf
    • http://peaceloveyogaindex.com/uploads/1/3/0/5/130538862/299e914.pdf
    • http://airportinterface.com/uploads/1/3/0/5/130551137/9968037.pdf
    • http://hello-baby-toys.com/uploads/1/3/0/4/130476657/130476657.html#accuracy+and+precision+practice+worksheet

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000135f.bin
be518a3da40228b94a9c537693ae58c67a58ca074664b1bd6f1f7298b413d20c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x135F 8780 bytes

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