Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a47ae85b782ad0e…

MALICIOUS

PDF

86.9 KB
MD5: 6c9187f74922786613afdbe2e06272c0 SHA-1: a98494e851d337289acd03ae32e892f2270e568e SHA-256: 7a47ae85b782ad0e9a26bf17220704065a8d7c236b3a7f4185835839e45d9d01
176 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

This PDF file contains an embedded exploit targeting CVE-2010-0188 in Adobe Reader's LibTIFF component. The exploit is designed to execute arbitrary code, which is a common method for delivering secondary payloads. The presence of an embedded file and script payload markers further supports this. While no specific family is identified, the exploit mechanism is clear.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
  • ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • Embedded script payload in PDF stream low PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • 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://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
584ffdf4a8f60a6f91e8c0a050dcbe0538f7b76218c20102ef3f32ef77deb343		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 88185 bytes

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