Malicious PDF — malware analysis report

Static analysis result for SHA-256 7645ad1f35597128…

MALICIOUS

PDF

2.9 KB First seen: 2026-05-10
MD5: 0b5daa63f1ccd67740fe1daf8904d922 SHA-1: 56f26509e8e01120c76ed27809d404fd9b526145 SHA-256: 7645ad1f35597128730c5e0a03546c5ffdf6e45817eca07a9ca9e8ddc21287c9
110 Risk Score

Malware Insights

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

The PDF file contains an embedded artifact that was detected by ClamAV as Win.Exploit.CVE_2010_0188-7, indicating exploitation of a known vulnerability. The ML classifier also flagged the PDF as malicious with high confidence. The presence of an embedded file and XFA form suggests the document is designed to trigger an exploit for client execution, likely as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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/ In PDF document text
    • http://www.xfa.org/schema/xci/1.0/In PDF document text
    • http://www.xfa.org/schema/xfa-template/2.4/In PDF document text
    • http://www.xfa.org/schema/xfa-data/1.0/In PDF document text
    • http://ns.adobe.com/xtd/In PDF document text
    • http://www.xfa.org/schema/xfa-form/2.8/In PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0001.bin pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x55 8774 bytes
SHA-256: d760734ea85e5f30986605d87b964b2838a0d3f23c1df044b747416fef21db05
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).
xfa_image_rawvalue_000.tif pdf-xfa-image-tiff XFA image/rawValue TIFF payload near offset 0x5B4 5107 bytes
SHA-256: 509cf7d60c47063675b9c7b65e2855fbefe7f63aabae5bcc9672ca493c10ae01
Detection
ClamAV: Win.Exploit.CVE_2010_0188-7
Obfuscation or payload: unlikely

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