Malicious PDF — malware analysis report

Static analysis result for SHA-256 0832aff009c2fc96…

MALICIOUS

PDF

94.7 KB
MD5: 1521dd9e11135e72d191bc837fd76e70 SHA-1: 274eb3a278fc68952a4d4d773a47a25f95f92e05 SHA-256: 0832aff009c2fc96bc13c7cf895c112028fa7b64c4e041d5c1ab147853f0869a
176 Risk Score

Malware Insights

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

The file is a PDF that triggers the CVE-2010-0188 exploit, targeting Adobe Reader's XFA form processing. This exploit is known to be used for arbitrary code execution, typically to download and run additional malware. The embedded file and ClamAV detection further support 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.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
fbd27bdf4d75567b04952ce436cb7f057aa44d18541141f20ddd270a134d7b97		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 96177 bytes

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