PDF static analysis report

Static analysis result for SHA-256 4dbd15ce671a4240…

SUSPICIOUS

PDF

454.5 KB First seen: 2026-05-08
MD5: 36c6705bc9534f937282725c7f08a21f SHA-1: 2da348bfa7cfb2aa4b954a7153de5212c34f45b9 SHA-256: 4dbd15ce671a4240e84c647da150348743c040f3272d4a9c53fa465210c0d45a
48 Risk Score

🔏 Digital signature Signed

A signature covers the whole signed byte range — PDF JavaScript is never signed on its own — and does not by itself mean the document is safe.

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The embedded script payload suggests it is designed to download and execute a second-stage payload. The presence of XFA forms further supports the use of advanced PDF features for malicious purposes. No specific IOCs were extracted, but the techniques indicate a downloader or dropper.

Machine Learning

  • Nyx PDF Classifier clean score 0.1908

Heuristics 6

  • Embedded script payload in PDF stream medium 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.
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • JavaScript action low 1 related finding PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules. (matched inside decoded stream)
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules. (matched inside decoded stream)
  • 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://forms.stefcameron.com/2006/06/14/acroform-field-name-generator/ Referenced by PDF JavaScript
    • http://www.monotype.comMonotypeIn PDF document text
    • http://ocsp.verisign.com0In PDF document text
    • http://www.adobe.com/go/reader_downloadIn PDF document text
    • http://www.adobe.com/go/acrreaderIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xfa/promoted-desc/In PDF document text
    • http://www.xfa.org/schema/xfa-template/3.0/Referenced by PDF JavaScript
    • http://www.w3.org/1999/xhtmlReferenced by PDF JavaScript
    • http://www.xfa.org/schema/xfa-data/1.0/Referenced by PDF JavaScript
    • http://www.xfa.org/schema/xfa-template/2.8/Referenced by PDF JavaScript
    • http://cgi.adobe.com/special/acrobat/updateReferenced by PDF JavaScript
    • http://www.xfa.org/schema/xci/3.0/In PDF document text
    • http://www.xfa.org/schema/xfa-template/2.8/\In PDF document text
    • http://www.w3.org/1999/xhtml\In PDF document text
    • http://www.xfa.org/schema/xfa-data/1.0/\In PDF document text
    • http://www.xfa.org/schema/xfa-locale-set/2.7/In PDF document text
    • http://www.xfa.org/schema/xfa-connection-set/2.8/In PDF document text
    • http://www.bde.es/InfTrimComYTipIn PDF document text
    • http://ns.adobe.com/data-description/In PDF document text
    • https://www.verisign.com/rpaIn PDF document text
    • http://ocsp.verisign.com/ocsp/status0In PDF document text
    • https://www.verisign.com/rpa0In PDF document text
    • http://crl.microsoft.com/pki/crl/products/CodeSignPCA.crl0In PDF document text
    • http://www.microsoft.com/typographyIn PDF document text
    • http://www.monotype.com/html/mtname/ms_arial.htmlhttp://www.monotype.com/html/mtname/ms_welcome.htmlhttp://www.monotype.com/html/type/license.htmlIn PDF document text
    • http://crl.verisign.com/tss-ca.crl0In PDF document text
    • http://crl.verisign.com/ThawteTimestampingCA.crl0In PDF document text
    • http://logo.verisign.com/vslogo.gif0In PDF document text
    • http://csc3-2010-crl.verisign.com/CSC3-2010.crl0DIn PDF document text
    • http://csc3-2010-aia.verisign.com/CSC3-2010.cer0In PDF document text
    • https://www.verisign.com/cps0*In PDF document text
    • http://logo.verisign.com/vslogo.gif04In PDF document text
    • http://crl.verisign.com/pca3-g5.crl04In PDF document text
    • http://www.adobe.com/typehttp://www.adobe.com/type/legal.htmlIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 10

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_001_off00000123.js decompressed-pdf-stream PDF FlateDecoded stream at offset 0x123 2560 bytes
SHA-256: 6d8fe6a533994ddfe69a896426fe3b7db6a82b0dcd7520289ad970a4d0e1c6d1
stream_002_off00000510.js decompressed-pdf-stream PDF FlateDecoded stream at offset 0x510 738153 bytes
SHA-256: 2586f79179f3a753db520e18d9d25cc56c3a81c9e77a3842ddeeced6813cd62f
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 3 long base64-like blob(s).
stream_003_off00028e90.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x28E90 2893 bytes
SHA-256: 984e33597cee6a139b4eb9668deb8ae3fd023cb2f29b1dac2e77dd6be0d9a93d
stream_005_off00029433.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x29433 354 bytes
SHA-256: 03ce370fa65ba03e4bf47493c3eb2ead0d7f8285d9431a26cbc7ae86788c3050
stream_006_off00029567.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x29567 18822 bytes
SHA-256: c2473d3806710ac08adcc649d598aaf0f968730f21f7bf9d4faa8d1d2b9b1577
stream_008_off0003a255.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3A255 367087 bytes
SHA-256: b8e2518b116c26bab0e9f8c1672daf405dedad561157502b657e9005be2029aa
stream_010_off0006e8f2.js decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6E8F2 1363 bytes
SHA-256: 529357503ec67b623d2a12816cdeea62bd639f2b4ff4e568b01c96cc3f5bfc6f
stream_011_off0006ead0.js decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6EAD0 902 bytes
SHA-256: e985b5df65c8c3cf732a9074b575fbc594c1c7f0bccc0994182ec7e5c0f7308a
objstm_0011_00.bin pdf-objstm-decoded PDF /ObjStm 11 0 obj (inflated) 10185 bytes
SHA-256: 69f2a36bf867397ae2abdbeb2ceeb1876ae40ea6caf76865285fb26782b64c7c
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).
font_00_sfnt_off00029e04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29E04 96552 bytes
SHA-256: bb2941ec4287d456b111082246b159a552fabcbd95c93efecdf11c9146f57370

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