Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a9a4ffb18a963dd…

MALICIOUS

PDF

35.6 KB Authoring application: PDFedit
MD5: 3fd0603c1e61e3f933a367f3d26f1c5d SHA-1: d5d24b9717631beb97ab3bbaf9b8d356eb9c6791 SHA-256: 2a9a4ffb18a963dd40967ec22e7cb1e8457592fece9a89e8c7b856c9f8d03786
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents hosted on various domains. This behavior is indicative of a link farm designed to direct users to potentially malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. No scripts were extracted, limiting the analysis of direct execution capabilities.

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://steverodemsconsulting.com/uploads/1/3/0/2/130287939/1545929.pdf
    • http://barbwireandgrace.com/uploads/1/3/0/5/130589249/paratuzufigog.pdf
    • http://fowufagode.uaemigration.com/uploads/2020/01/29/1250197.pdf
    • http://qlcommunitychallenge.crowdrisetoolkit.com/uploads/1/3/0/2/130288334/260750.pdf
    • http://baygrownfarms.com/uploads/1/3/0/6/130621075/1616694.pdf
    • http://nashobavalleyextractco.com/uploads/1/3/0/5/130589195/130589195.html#concept+map+template+prezi

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001089.bin
74a273fd74f2860a5d68c09d7767bc6bcb5e52c21eb92edf392b94a8ea3d786b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1089 7968 bytes
font_01_sfnt_off000050d4.bin
83459e82cebe561b9e65dda6a09953c9e35f75e5df0fa62a624e1833cc5b8086		 pdf-font-stream PDF embedded font (sfnt) at offset 0x50D4 1708 bytes

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