Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d5841fc620d992b…

MALICIOUS

PDF

99.8 KB
MD5: 25eb938550c90bb3824f9488b8eab4bb SHA-1: 69da46d12742eacd0b304af44b0427c09cd1779d SHA-256: 5d5841fc620d992b4642aed72fa54c233cf6477a1b57c7f5d34da9f263ed385c
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 by an ML classifier and contains a critical heuristic for CVE-2010-0188, an Adobe Reader XFA exploit. This exploit likely allows for the execution of arbitrary code, which is often used to download and run additional malicious payloads. No specific family could be identified, but the exploit vector is clear.

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
f633d0cb1a21aba6953afe61ce40249afc351d6b66d336694a8570d349c09f9d		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101433 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.