Malicious PDF — malware analysis report

Static analysis result for SHA-256 014d8cf7b9e13316…

MALICIOUS

PDF

127.5 KB Created: 2017-06-22 21:28:31 UTC Authoring application: RAD PDF (via RAD PDF 2.36.7.1 - http://www.radpdf.com)
MD5: 151022f9703f40c22e2ca34b3fe7c2d2 SHA-1: 4e617c47214caeb443703f6b166a2356042106b9 SHA-256: 014d8cf7b9e13316f04a450ad33013487f19d0d337397a06992f68295cb66bae
150 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious Link

The PDF document is designed as a phishing lure, presenting a screenshot to trick the user into clicking on invisible links. These links, specifically identified as delivering a payload, point to an executable file named 'Rfq_07-05-2017_Advice_urgent.exe' hosted on 'globalaccesspipeline.org'. ClamAV also detected this file as 'Pdf.Dropper.Agent-7222066-0', confirming its malicious nature as a dropper.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2691

Heuristics 5

  • Invisible/repeated PDF links deliver payload file critical PDF_REPEATED_PAYLOAD_LINK_LURE
    PDF uses invisible link annotations and points to a direct payload download. Repeated invisible links or lure-like payload names such as document/unlock/verify archives match malware-delivery PDF carriers where the page is only a prompt and the real payload is fetched from the linked URL.
  • ClamAV: Pdf.Dropper.Agent-7222066-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7222066-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 2 image(s), only 0 text block(s), carries a click-outward action, and is only 127 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://globalaccesspipeline.org//dev/wp-includes/js/Rfq_07-05-2017_Advice_urgent.exe
    • http://www.radpdf.com
    • http://www.radpdf.com)/Author(
    • http://www.dynaforms.com
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/pdf/1.3/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_001_off00003696.bin
3fec3783f09830385097e9a46e663f9dc7930d7f5807bf8f9d1e927c9bce42a1		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3696 154336 bytes
stream_002_off0000ef2b.bin
e03ba6ce95bd36a01958392bbe565020680cca637d09d9f1da7e60b4291a394b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xEF2B 458045 bytes
font_00_cff_off0000090b.bin
d0074aa4578de6dbf2c5c3b7711a978f69152a2f95f6bfb2b0c7ae8668400935		 pdf-font-stream PDF embedded font (cff) at offset 0x90B 3494 bytes

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