Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c4fabec4bb7327a…

MALICIOUS

PDF

89.4 KB
MD5: 06537becae089829f9e049120b25a24e SHA-1: 59621bff2a7bbe9c6826163f575dd73e54481eed SHA-256: 7c4fabec4bb7327a3454f62b3c4c69a38c8e2ca52343783929d8c160759c4047
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 XFA forms. The exploit is designed to execute arbitrary code, and the presence of an embedded script payload suggests it is likely used to download and run a secondary malicious payload. The ClamAV detection name 'Pdf.Exploit.Agent-6136306-0' further supports its malicious nature.

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.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • 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
26f95445fbd49e93aaaa0094a0a878ce8ee4b5392235720db3b6da318538e520		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 90821 bytes

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