Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b0d268f51d560a9…

MALICIOUS

PDF

50.8 KB
MD5: e70ffa3c75a5b40e10f9d44055a8d677 SHA-1: c15953288d80ccc0cc936f25b0ea275a9652333d SHA-256: 0b0d268f51d560a914fd42997ea5c18e9978a55a649827036513ac5501a40dae
176 Risk Score

Malware Insights

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

The sample is a PDF document that triggers a critical heuristic for CVE-2010-0188, an Adobe Reader exploit. This exploit is designed to execute arbitrary code, which is often used to download and run additional malicious payloads. The presence of an embedded file and script payload further supports this attack pattern. No specific family could be identified.

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
d507ac3376e08d44888e62aa7486c71a6f8ceb76d1948bfb97f78ab6a05e3784		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 51247 bytes

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