Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed578efe2a5c60c0…

MALICIOUS

PDF

2.3 KB First seen: 2026-05-11
MD5: bcd44856c01698504d98fdb333e18cda SHA-1: e99451ecec870e4749bce9f864f79609c8e4f6a3 SHA-256: ed578efe2a5c60c083e0f22679faebbd4b85211da41f15a76477f420eafd1bb7
128 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Suspicious extracted artifact medium 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 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 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
    • https://ns.adobe.com/xtd/In PDF document text
    • https://www.xfa.org/schema/xfa-form/2.8/In PDF document text

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 0x51 13433 bytes
SHA-256: e6816294bc58bddf2940f8167c3c03784c4e3917005d8d809b88ed025ba1129c
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 0x587 8642 bytes
SHA-256: c58a2ec69cd32478174e88f1acceadec277a643c5f0f0ce79f5e773c1801209c
Detection
ClamAV: Win.Exploit.CVE_2010_0188-7
Obfuscation or payload: likely
Static shellcode analysis found candidate code region(s). Indicators: NOP sled

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