Malicious PDF — malware analysis report

Static analysis result for SHA-256 a638359df129df8b…

MALICIOUS

PDF

32.4 KB Authoring application: OpenOffice Draw
MD5: 65ab27c4fc953fda5495f9ccd8816373 SHA-1: 48cf102dc6d5912bf028d9b74096bd8320020deb SHA-256: a638359df129df8b1f97fee0f66b15781a984ecd836d27d3eb83ae94768cb7f2
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded external links, a technique commonly used for phishing or distributing further malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly suggests a phishing intent. The document body, while containing unrelated text, also lists these external URLs, reinforcing the link farm attack pattern.

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://citywidevalet.com/uploads/1/3/0/4/130475879/xifep.pdf
    • http://coldwatermusicschool.com/uploads/1/3/0/6/130620345/kaposovoji.pdf
    • http://uservite.com/uploads/1/3/0/5/130544584/ecda1092ba23.pdf
    • http://tonypandytaxiservices.com/uploads/1/3/0/6/130605034/loguri_fubofeluzegi.pdf
    • http://positivecp3.net/uploads/1/3/0/3/130312923/843555.pdf
    • http://pixelsxblocks.com/uploads/1/3/0/6/130605519/felud.pdf
    • http://assessmentsystemscorporation.com/uploads/1/3/0/6/130621721/531349.pdf
    • http://edgelandscapeandmaintenance.com/uploads/1/3/0/6/130620587/130620587.html#jesus+name+above+all+names+benny+hinn

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001116.bin
56ca20face19607ad7a24680930639b117bb3a3ab898be501b11547f4713072d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1116 7692 bytes

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