Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f1372d36e215661…

MALICIOUS

PDF

74.2 KB Created: 2017-03-09 00:37:23 UTC Authoring application: RAD PDF (via RAD PDF 2.38.3.1 - http://www.radpdf.com)
MD5: a753551a7812cafd8d082c010232eeeb SHA-1: 4aff12a6b5e9009994817b86fb17a131fbad7725 SHA-256: 9f1372d36e215661074fcc8cb9bc927871c45a2021f89d48520fc6ac3269cccc
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF is identified as an image-only lure, typical for phishing attacks. It contains an embedded URI pointing to 'http://xincubetrade.16mb.com' and another URL 'http://postmasterservices01254786.ml/PDF-DOCUMENTS.html' is present in the document body. ClamAV also detected this file as 'Pdf.Dropper.Agent-7287613-0', indicating its malicious nature as a dropper.

Machine Learning

  • Nyx PDF Classifier clean score 0.2084

Heuristics 4

  • ClamAV: Pdf.Dropper.Agent-7287613-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7287613-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 2 image(s), only 1 text block(s), carries a click-outward action, and is only 74 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://postmasterservices01254786.ml/PDF-DOCUMENTS.html
    • http://www.radpdf.com)/Creator(RAD
    • http://www.dynaforms.com
    • http://www.radpdf.com
    • http://xincubetrade.16mb.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000b04.bin
d43e7b69e1e25fe070d522da94c4396003aae12eb7a75aecb2cc0f5e5feef6a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB04 73728 bytes

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