PDF static analysis report

Static analysis result for SHA-256 7fbfc42a3bfa1157…

CLEAN

PDF

5.71 MB Authoring application: Nitro Pro 8 First seen: 2020-02-04
MD5: 05823aa2a7d45638a033de2188f81f76 SHA-1: 1220102635da068c6465b35b5e3af81e1a81620e SHA-256: 7fbfc42a3bfa1157e7246b457aa542097f574dd9fab7ea3ac1bfc9fc8523f527
6 Risk Score

Malware Insights

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

The sample is a PDF file exhibiting characteristics related to CVE-2023-26369, which involves the exploitation of TrueType bitmap fonts and active content. This suggests the file is designed to execute code upon opening. The presence of an external URI, http://www.equalityindonesia.com/, indicates a potential download location for a secondary payload. Given these factors, the most likely attack pattern is exploitation of a client vulnerability via a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier clean score 0.0060

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.equalityindonesia.com/ PDF link annotation
    • http://www.equalityindonesia.com/)/TypeIn PDF document text
    • http://ocsp.verisign.com0In 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://crl.microsoft.com/pki/crl/products/MicCodSigPCA_08-31-2010.crl0ZIn PDF document text
    • http://www.microsoft.com/pki/certs/MicCodSigPCA_08-31-2010.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://www.microsoft.com/typography/0In PDF document text
    • https://www.verisign.com/repository/RPA0In PDF document text
    • https://www.verisign.com/repository/CPS��In PDF document text
    • https://www.verisign.comIn PDF document text
    • https://www.verisign.com/repository/verisignlogo.gif0�In PDF document text
    • https://www.verisign.com/CPSIn PDF document text
    • https://www.verisign.com/repository/CPSIn PDF document text
    • http://www.microsoft.com/truetype/0In PDF document text
    • http://www.microsoft.com/typography/ctfontshttp://fontfabrik.comYouIn PDF document text
    • http://www.microsoft.com/typography/fonts/default.aspxIn PDF document text
    • http://www.microsoft.com/typographyIn PDF document text
    • http://www.microsoft.com/truetype/fonts/wingdings/YouIn PDF document text
    • http://crl.verisign.com/ThawteTimestampingCA.crl0In PDF document text
    • http://crl.verisign.com/tss-ca.crl0In PDF document text
    • http://crl.microsoft.com/pki/crl/products/CodeSignPCA2.crl0OIn PDF document text
    • http://www.microsoft.com/pki/certs/CodeSignPCA2.crt0In PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_010_off005850c1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5850C1 244236 bytes
SHA-256: cbdb27d27634f4cf8472449dad54b9621a55a76ed51646831b8a3a382462f9d3
font_00_sfnt_off00001694.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1694 53488 bytes
SHA-256: ac980ae7f8813a9e2edf6ff856f7eeda808fd00673cdfe1fe15c8bc29487f31e
font_01_sfnt_off00571c10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x571C10 173476 bytes
SHA-256: 51c90687bcd2902b578086bafc9cf48c589efcd04007c0d5ed97e8e16cf52c15
font_03_sfnt_off00592062.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x592062 56648 bytes
SHA-256: 70078f2e897f3b9ed5ad897b1b716d7dd582aaf6128b2c30a2081ce44d033690
font_04_sfnt_off00598049.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x598049 28076 bytes
SHA-256: 2bff52f0ee136f42dae64f1287bed0b4858e82c4f089ce000cb0d3a6fb53d440
font_06_sfnt_off005a73f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A73F8 44416 bytes
SHA-256: afbed549ab2efc449039228b0a6cae5d48d628c41b7e380ada81f19370ffed7a

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