Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c952dd2b548d212…

MALICIOUS

PDF

267.4 KB Created: 2017-08-16 13:23:12 +03:00 Authoring application: ebs4l6h (via TCPDF 6.2.13 (http://www.tcpdf.org))
MD5: 3298c78cfde1219b28df4688ba5591a4 SHA-1: f36024c4bad2f7ecce872f35cd97387b5b40d432 SHA-256: 5c952dd2b548d212f2165779c959a997090b8a0c5a83a94f71438528ec8ad9c1
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded URI pointing to 'http://afmoon.com/tds/800u', which is flagged as an external URI. ClamAV detection 'Pdf.Dropper.Agent-7264101-0' further indicates malicious intent. The embedded URL is likely used to download and execute a second-stage payload, characteristic of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier clean score 0.0006

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7264101-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7264101-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://afmoon.com/tds/800u
    • http://www.tcpdf.org
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://www.aiim.org/pdfa/ns/extension/
    • http://www.aiim.org/pdfa/ns/schema#
    • http://www.aiim.org/pdfa/ns/property#
    • http://www.aiim.org/pdfa/ns/id/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00009e69.bin
a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x9E69 120140 bytes

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