Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a54d33c678cd010…

MALICIOUS

PDF

50.7 KB
MD5: 41e6b2b164f8f00f394a39a218c93efd SHA-1: e6e35386b6dbc7c0bf4982078e3a96f9861c0361 SHA-256: 7a54d33c678cd010a0436704994c1e6ad5bbed6f4c5cf8721e348d4ac3c4f2ed
176 Risk Score

Malware Insights

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

This PDF document is malicious and exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. The exploit targets client execution by leveraging embedded script payloads within the PDF structure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely delivered via spearphishing.

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
1c3c457f158e2bd79b85c103d540920b7929e20eee71f3aa2ea1b6ab09a3ade5		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 51141 bytes

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