Malicious PDF — malware analysis report

Static analysis result for SHA-256 813308c46858e52d…

MALICIOUS

PDF

78.8 KB
MD5: 389cbdac8ceead3153d38cd4d9425db0 SHA-1: 050bee5e603a0f016dbe68507db1e39ed1e4f9bd SHA-256: 813308c46858e52de1aba4021c1c9b98734112d798c28a1acaf39a7fc5712d3f
116 Risk Score

Malware Insights

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

This PDF file is identified as malicious due to the critical CVE-2010-0188 heuristic, indicating an exploit targeting Adobe Reader's LibTIFF component. The presence of an XFA form and embedded script payload further supports this finding. The exploit likely facilitates the execution of a secondary payload, although no specific download URLs were extracted.

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
6f897d783b0d9da0d75b940800e44b4b5c8e69022f6e6de30dfa2dc2c2258418
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 79967 bytes