Malicious PDF — malware analysis report

Static analysis result for SHA-256 62eb1eb78f80ad66…

MALICIOUS

PDF

62.6 KB
MD5: 8e1e361a4141f4bd791167b053c787d6 SHA-1: 3809679e1c81d2f62ba2e84fb0302a567ed20c99 SHA-256: 62eb1eb78f80ad665179b1b138112ae63ee498eb8b250b5d8bb824fbdee0c659
156 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by an ML classifier. It contains an XFA form which is known to be exploited by CVE-2010-0188, a vulnerability in Adobe Reader's LibTIFF component. This exploit allows for the execution of arbitrary code, indicating the document is likely a malicious attachment designed to compromise the user's system.

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.
  • XFA form contains risky executable script high CVE related PDF_XFA_SCRIPT
    PDF embeds an XFA form whose script block contains exploit, submission/launch, or shell-execution primitives. Ordinary LiveCycle print/update scripts are left as generic XFA/JS signals unless stronger behavior is present.
  • 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
180f249d2c1b691e3dca00b227c3ab54f7d091dadf01a180b5f58aa43cd969ff		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 63318 bytes

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