PDF static analysis report

Static analysis result for SHA-256 a3f9763696f8adc7…

CLEAN

PDF

89.6 KB Created: 2025-02-05 04:57:26 -05:00 Authoring application: Microsoft® Word para Microsoft 365 First seen: 2026-05-13
MD5: b4b204bab7e3e00aef0eb31d8bad4836 SHA-1: 898c3d536e7d0c3ddf3ea6bec1cc2d1c219391e0 SHA-256: a3f9763696f8adc7f2836778c5124d333c53ab793a42bb77fc663166c22a95f9
22 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0001

Heuristics 2

  • 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 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 https://wwww.microsoft.com0 In extracted file (stream_007_off0000e475.bin)
    • https://github.com/andre-fuchs/kerning-pairs/blob/master/LICENSE.mdIn extracted file (font_03_sfnt_off00013008.bin)
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn extracted file (stream_007_off0000e475.bin)
    • http://crl.microsoft.com/pki/crl/products/MicCodSigPCA_2010-07-06.crl0ZIn extracted file (stream_007_off0000e475.bin)
    • http://www.microsoft.com/pki/certs/MicCodSigPCA_2010-07-06.crt0In extracted file (stream_007_off0000e475.bin)
    • http://crl.microsoft.com/pki/crl/products/MicRooCerAut_2010-06-23.crl0ZIn extracted file (stream_007_off0000e475.bin)
    • http://www.microsoft.com/pki/certs/MicRooCerAut_2010-06-23.crt0��In extracted file (stream_007_off0000e475.bin)
    • http://www.microsoft.com/PKI/docs/CPS/default.htm0@In extracted file (stream_007_off0000e475.bin)
    • http://crl.microsoft.com/pki/crl/products/MicTimStaPCA_2010-07-01.crl0ZIn extracted file (stream_007_off0000e475.bin)
    • http://www.microsoft.com/pki/certs/MicTimStaPCA_2010-07-01.crt0In extracted file (stream_007_off0000e475.bin)
    • http://crl.microsoft.com/pki/crl/products/MicrosoftTimeStampPCA.crl0XIn extracted file (font_00_sfnt_off00002559.bin)
    • http://www.microsoft.com/pki/certs/MicrosoftTimeStampPCA.crt0In extracted file (font_00_sfnt_off00002559.bin)
    • http://www.microsoft.com/pkiops/crl/MicCodSigPCA2011_2011-07-08.crl0aIn extracted file (font_00_sfnt_off00002559.bin)
    • http://www.microsoft.com/pkiops/certs/MicCodSigPCA2011_2011-07-08.crt0In extracted file (font_00_sfnt_off00002559.bin)
    • http://crl.microsoft.com/pki/crl/products/microsoftrootcert.crl0TIn extracted file (font_00_sfnt_off00002559.bin)
    • http://www.microsoft.com/pki/certs/MicrosoftRootCert.crt0In extracted file (font_00_sfnt_off00002559.bin)
    • http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl0^In extracted file (font_00_sfnt_off00002559.bin)
    • http://www.microsoft.com/pki/certs/MicRooCerAut2011_2011_03_22.crt0��In extracted file (font_00_sfnt_off00002559.bin)
    • http://www.microsoft.com/pkiops/docs/primarycps.htm0@In extracted file (font_00_sfnt_off00002559.bin)
    • http://www.microsoft.com/TypographyIn extracted file (font_00_sfnt_off00002559.bin)
    • https://docs.microsoft.com/typography/aboutWeightWidthOpticalIn extracted file (font_03_sfnt_off00013008.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off0000e475.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xE475 60912 bytes
SHA-256: e0bcbdb3a92c148f4a5a16df9d47ae6110cb736e661618125802e515ca477608
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Static shellcode analysis found candidate code region(s). Indicators: heap spray 0x06
font_00_sfnt_off00002559.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2559 34016 bytes
SHA-256: 809c4395a6c10cfad303398262c84ba9a2698874c38bedfaf35bf4d9b2106da1
font_01_sfnt_off0000737f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x737F 74988 bytes
SHA-256: ca77e0ab5795d5c2a28b5f3ccde3fd9eb4c80189d2f39b73f9bed33a4496d48f
font_03_sfnt_off00013008.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13008 19840 bytes
SHA-256: 89cb78b72afd79e8f860ff65c02ae7c7636a57ca8ac472a8f1d90be82d6b968a