Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4292bdc44b5690e…

MALICIOUS

PDF

137.9 KB Created: 2018-03-20 04:47:27 +01:00 Authoring application: RAD PDF (via RAD PDF 3.4.2.0 - http://www.radpdf.com)
MD5: 1b85e02e69abae4bfe89ef1fcdab1bc3 SHA-1: 12baa600b16c977e141ef057e9cc6275d5649d93 SHA-256: d4292bdc44b5690eb99c3a1839b62a276d5bdfc5ce89f989ced0557313365f99
62 Risk Score

Malware Insights

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

The file is a PDF document identified by ClamAV as Pdf.Dropper.Agent-7144424-0. It contains multiple embedded URLs pointing to domains that appear to be impersonating law firms, suggesting a phishing or social engineering lure. The document body, though heavily obfuscated, also contains these suspicious URLs. No scripts were extracted from this sample, but the presence of multiple malicious URLs indicates a high likelihood of a phishing attack.

Machine Learning

  • Nyx PDF Classifier clean score 0.0749

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7144424-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7144424-0
  • 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 https://marksternlawfirm.com/*%5E!%23!%25%24%5E%25
    • https://thebradlawfirm.com/!%40%23%24%25%5E%26*
    • https://thebrookslawfirm.org/%26%5E%25%24%25%24%23
    • http://www.radpdf.com)/Creator(RAD
    • http://www.dynaforms.com
    • http://www.radpdf.com
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000ade3.bin
f3bf9704ae1a1b01d6eaba8c4203245dfddd8957cdd25f52cca46afe823164ba		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xADE3 173484 bytes
font_00_sfnt_off000008e4.bin
560d598b7556a0dc4c6b7528c0b09b27df0e7d3cf5811c201cc75f52982c9090		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E4 108556 bytes

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