PDF static analysis report

Static analysis result for SHA-256 69881dc9ddce30aa…

CLEAN

PDF

1.08 MB Authoring application: Nitro Pro 8 First seen: 2017-03-23
MD5: 05e6636acebbe48f9b0f70ca804f482d SHA-1: 2704a07a94415c73bc7589e81632a20b3ec130c9 SHA-256: 69881dc9ddce30aae12d41f50c020b061cdbb3ebf029a909545ae05b8b77f1f5
6 Risk Score

Malware Insights

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

The sample is a PDF file that triggered a heuristic indicating it is related to CVE-2023-26369, a known vulnerability for client execution. The presence of external URIs, specifically http://www.equalityindonesia.com/, suggests a potential download location for a secondary payload. The document body is heavily obfuscated and does not provide clear textual clues, but the exploit and external URL are strong indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.0002

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.comPDF link annotation
    • http://ocsp.verisign.com0In 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://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/MicrosoftTimeStampPCA.crl0XIn PDF document text
    • http://www.microsoft.com/pki/certs/MicrosoftTimeStampPCA.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/typographyIn 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/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
font_00_sfnt_off00001e5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E5D 54220 bytes
SHA-256: 3916b9d0c1603c8a1a3117b4ddd7db2914a4180a63f1bf886c30ffb11e988d00
font_01_sfnt_off000d322d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD322D 94564 bytes
SHA-256: 130927a1497f5e5817f2c32d4d3598a4807a6d62dd5d7bf79e36b6b4debf8dbe
font_02_sfnt_off000dce29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCE29 172904 bytes
SHA-256: 45fac8cc0e36187eb32efa0095e771ae1263a4d6cf6e3f1055b674b2c875d701
font_03_sfnt_off000f03d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF03D6 56284 bytes
SHA-256: 195901d5db366b4d94f31c2c49776a88417aa2d0d17a73a242fcd4249c686875
font_04_sfnt_off000fb9f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB9F6 44192 bytes
SHA-256: 45bd0b54f24cd954f1b8f041819cadcf04dc022ee340bdcd3f5856003e885eb3
font_05_sfnt_off00102780.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102780 28076 bytes
SHA-256: 2bff52f0ee136f42dae64f1287bed0b4858e82c4f089ce000cb0d3a6fb53d440

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