PDF static analysis report

Static analysis result for SHA-256 5ae1fc8bc05dd1ba…

CLEAN

PDF

994.0 KB Created: 2020-04-27 13:24:31 +02:00 Authoring application: Microsoft® Word 2013 First seen: 2020-09-15
MD5: c695e357524c5f375141571d260ada67 SHA-1: 4652f04e3ed79e4dfeea8cbc3f74ff256854aff5 SHA-256: 5ae1fc8bc05dd1ba01c242874265e25afd0147f3e720a8d7a3bb5849dc2bba73
6 Risk Score

Malware Insights

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

The sample is a PDF document that contains active content and a TrueType font, which is related to CVE-2023-26369. This indicates the file is likely attempting to exploit this vulnerability to achieve code execution. The presence of numerous URLs, some of which are unknown or potentially malicious, suggests a download or redirection mechanism for a secondary payload. No scripts were extracted, but the exploit itself is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.0001

Heuristics 3

  • TrueType bitmap font + active content — CVE-2023-26369 related info CVE related PDF_CVE_2023_26369_RELATED
    PDF embeds a TrueType font with bitmap tables (EBDT/sbix/CBDT) alongside exploit delivery indicators — CVE-2023-26369 exploits the sfac_GetSbitBitmap function in Adobe's libCoolType for arbitrary code execution. This CVE was actively exploited in the wild, but this rule does not validate the malformed EBLC/EBDT primitive.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://www.predskolaci.cz/ In PDF document text
    • http://www.yutube.com/In PDF document text
    • http://www.tvo��ivepracky.cz/In PDF document text
    • http://www.youtube.com/PDF link annotation
    • http://www.pinterest.com/In PDF document text
    • https://docs.microsoft.com/typography/abouthttp://lucasfonts.comMicrosoftIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text
    • http://crl.microsoft.com/pki/crl/products/MicrosoftTimeStampPCA.crl0XIn PDF document text
    • http://www.microsoft.com/pki/certs/MicrosoftTimeStampPCA.crt0In PDF document text
    • http://www.microsoft.com/pkiops/crl/MicCodSigPCA2011_2011-07-08.crl0aIn PDF document text
    • http://www.microsoft.com/pkiops/certs/MicCodSigPCA2011_2011-07-08.crt0In PDF document text
    • http://crl.microsoft.com/pki/crl/products/microsoftrootcert.crl0TIn PDF document text
    • http://www.microsoft.com/pki/certs/MicrosoftRootCert.crt0In PDF document text
    • http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl0^In PDF document text
    • http://www.microsoft.com/pki/certs/MicRooCerAut2011_2011_03_22.crt0��In PDF document text
    • http://www.microsoft.com/pkiops/docs/primarycps.htm0@In PDF document text
    • http://www.microsoft.com/TypographyIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_017_off000839e6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x839E6 597580 bytes
SHA-256: ef0e0b67baba22bfb5768521f9a285514824cf356ecdbff3cb2b89513bd0617e

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