Malicious PDF — malware analysis report

Static analysis result for SHA-256 671ea6b7ddfe6c47…

MALICIOUS

PDF

99.6 KB
MD5: fd7692ca3c17214cef28630f7a758425 SHA-1: 96c7bb6de2c342a6d147b71236c876032ae352c3 SHA-256: 671ea6b7ddfe6c475b98b55d2c4c56f594f8d19226c5138b9106c2fcd1b77885
116 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious, exploiting CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. This exploit likely allows for the execution of arbitrary code, which is often used to download and run additional malicious payloads. No specific malware family was identified, but the exploit technique is a common method for initial compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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
6fa485436666d49278f02223b3d4c006f3938f1ffdd665b5d8ae2ddece7158ed		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101239 bytes

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