SUSPICIOUS
26
Risk Score
Machine Learning
- Nyx PDF Classifier clean score 0.0562
Heuristics 4
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TrueType bitmap font + active content — CVE-2023-26369 related info PDF_CVE_2023_26369_RELATEDPDF 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.
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Suspicious extracted artifact medium EXTRACTED_FILE_STATIC_TRIAGEOne 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.
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External URI info PDF_URIPDF contains an external URL action
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Embedded URL info EMBEDDED_URLOne 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://gosciencegirls.com/ In PDF document text
- https://aenert.com/news-events/industrial-tours/n/15-years-of-the-first-commercial-concentrating-solar-power-plant-ps10/In PDF document text
- https://synhelion.com/In PDF document text
- https://wwww.microsoft.com0In extracted file (stream_041_off0048b779.bin)
- https://github.com/andre-fuchs/kerning-pairs/blob/master/LICENSE.mdIn extracted file (font_00_sfnt_off0048894f.bin)
- http://www.paratype.com/publicIn extracted file (font_05_sfnt_off004be15e.bin)
- http://www.paratype.com/help/designers/http://scripts.sil.org/OFL_webIn extracted file (font_05_sfnt_off004be15e.bin)
- http://ocsp.verisign.com0In extracted file (font_05_sfnt_off004be15e.bin)
- http://ocsp.thawte.com0In extracted file (font_05_sfnt_off004be15e.bin)
- http://www.paratype.comIn extracted file (font_05_sfnt_off004be15e.bin)
- http://www.ascendercorp.com/typedesigners.htmlLicensedIn extracted file (font_11_sfnt_off004e3a40.bin)
- http://ocsp.verisign.com01In extracted file (font_11_sfnt_off004e3a40.bin)
- https://www.linkedin.com/in/gianluca-ambrosetti-706210b4/PDF link annotation
- https://www.linkedin.com/in/philipp-furler-phd-99b81556/In PDF document text
- https://www.linkedin.com/in/hans-hess-a873ba2/In PDF document text
- https://www.linkedin.com/in/thomassyfrig/In PDF document text
- https://www.linkedin.com/in/philipp-good-176b66169/In PDF document text
- https://x.com/RARohdeIn PDF document text
- 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://ns.adobe.com/pdfx/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
- https://docs.microsoft.com/typography/abouthttp://lucasfonts.comMicrosoftIn extracted file (stream_041_off0048b779.bin)
- http://en.wikipedia.org/wiki/MIT_LicenseIn extracted file (stream_041_off0048b779.bin)
- http://crl.microsoft.com/pki/crl/products/MicCodSigPCA_2010-07-06.crl0ZIn extracted file (stream_041_off0048b779.bin)
- http://www.microsoft.com/pki/certs/MicCodSigPCA_2010-07-06.crt0In extracted file (stream_041_off0048b779.bin)
- http://crl.microsoft.com/pki/crl/products/MicRooCerAut_2010-06-23.crl0ZIn extracted file (stream_041_off0048b779.bin)
- http://www.microsoft.com/pki/certs/MicRooCerAut_2010-06-23.crt0��In extracted file (stream_041_off0048b779.bin)
- http://www.microsoft.com/PKI/docs/CPS/default.htm0@In extracted file (stream_041_off0048b779.bin)
- http://www.microsoft.com/pkiops/crl/Microsoft%20Time-Stamp%20PCA%202010(1).crl0lIn extracted file (stream_041_off0048b779.bin)
- http://www.microsoft.com/pkiops/certs/Microsoft%20Time-Stamp%20PCA%202010(1).crt0In extracted file (stream_041_off0048b779.bin)
- http://www.microsoft.com/pkiops/Docs/Repository.htm0In extracted file (stream_041_off0048b779.bin)
- http://www.microsoft.com/pki/certs/MicRooCerAut_2010-06-23.crt0In extracted file (stream_041_off0048b779.bin)
- http://crl.microsoft.com/pki/crl/products/MicTimStaPCA_2010-07-01.crl0ZIn extracted file (stream_042_off0049b509.bin)
- http://www.microsoft.com/pki/certs/MicTimStaPCA_2010-07-01.crt0In extracted file (stream_042_off0049b509.bin)
- https://docs.microsoft.com/typography/aboutWeightWidthOpticalIn extracted file (font_00_sfnt_off0048894f.bin)
- https://www.verisign.com/repository/CPS��In extracted file (font_04_sfnt_off004b9558.bin)
- https://www.verisign.comIn extracted file (font_04_sfnt_off004b9558.bin)
- https://www.verisign.com/repository/verisignlogo.gif0��In extracted file (font_04_sfnt_off004b9558.bin)
- https://www.verisign.com/CPS0bIn extracted file (font_04_sfnt_off004b9558.bin)
- http://www.microsoft.com/truetype/0In extracted file (font_04_sfnt_off004b9558.bin)
- http://scripts.sil.org/OFLIn extracted file (font_05_sfnt_off004be15e.bin)
- http://crl.verisign.com/tss-ca.crl0In extracted file (font_05_sfnt_off004be15e.bin)
- http://crl.verisign.com/ThawteTimestampingCA.crl0In extracted file (font_05_sfnt_off004be15e.bin)
- http://cs-g2-crl.thawte.com/ThawteCSG2.crl0In extracted file (font_05_sfnt_off004be15e.bin)
- http://crl.thawte.com/ThawtePCA.crl0In extracted file (font_05_sfnt_off004be15e.bin)
- http://www.apache.org/licenses/LICENSE-2.0In extracted file (font_11_sfnt_off004e3a40.bin)
- https://www.verisign.com/rpaIn extracted file (font_11_sfnt_off004e3a40.bin)
+8 more URL(s)
Extracted artifacts 20
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_017_off000b483d.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xB483D | 1411256 bytes |
SHA-256: b90a8cc494e7ec587bed465a44c4264f8b14f4540421140406d62452ceb52a9d |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Static shellcode analysis found candidate code region(s). Indicators: heap spray 0x06, NOP sled
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stream_039_off0012de60.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x12DE60 | 2448948 bytes |
SHA-256: ac1d31af744716b02fa198a3bb5c6f4d7b6fc7be47e783d2e3200e686ac1f318 |
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stream_041_off0048b779.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x48B779 | 153512 bytes |
SHA-256: c810b48f618ab875d3143ad099073c4cf227721d4a7dea93fbbd693afad082c5 |
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stream_042_off0049b509.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x49B509 | 169620 bytes |
SHA-256: 846c07a94179ef604c7ad1eacdc704521aeaf0528e9f73fc9cb789ffede9fd46 |
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stream_043_off004aceb4.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x4ACEB4 | 107932 bytes |
SHA-256: 6fc9655ebc50c324355442000fe8919a6ce558d6741ef0441695d82874cbf70d |
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stream_049_off004d8375.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x4D8375 | 81032 bytes |
SHA-256: 29c480c2e2d2155836c3e1ac91404c7d99a2e8ac53108851254f6a47ac7480ac |
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font_00_sfnt_off0048894f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x48894F | 25368 bytes |
SHA-256: 0e61bd9aa2ca1045a74e1dc5f9760324d37b4584eaf6e70a823a52d7132912e6 |
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font_04_sfnt_off004b9558.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4B9558 | 32508 bytes |
SHA-256: 522853a5098b1f5d1b0ee8fd372b0de265391d477af512c3916147ba22479df4 |
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font_05_sfnt_off004be15e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4BE15E | 51088 bytes |
SHA-256: 63bb5461db39416cb34f56b8431ffa08539adad0bae398d182b7aa17c3280e41 |
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font_06_sfnt_off004c4515.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4C4515 | 50812 bytes |
SHA-256: e63899e216e3ae5ca691499cb6f53fb15b907b13750ef7f062459fd4d9daf985 |
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font_07_sfnt_off004ca853.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4CA853 | 124756 bytes |
SHA-256: df285f0bd38fa0080b0fb1d02c55397c1a9f966d5da7ee38168139836430b64b |
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font_08_sfnt_off004d630e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4D630E | 36536 bytes |
SHA-256: 5aabf26486b0101424227ec91e3c95284772067c26264cbd5feacecdf92c0137 |
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font_10_sfnt_off004e0acf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4E0ACF | 23432 bytes |
SHA-256: 913335259b04e32819cb1d2fea300983a73cf0dd9c8692bbae6cd09d60cdeb1f |
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font_11_sfnt_off004e3a40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4E3A40 | 20176 bytes |
SHA-256: 98502bf9ef35ec220cc4e62cb9ff4628b043592858e0d156b8b4686c5042d481 |
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font_12_sfnt_off004e6226.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4E6226 | 15512 bytes |
SHA-256: 63cc3d765e705d0f52f550530af3801731a7ebf5a0a5a2dcf6d8b8a0273692f0 |
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font_13_sfnt_off004e81f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4E81F2 | 75076 bytes |
SHA-256: f1af1f24eabfa27bb18bb275584e7a02b23f808d9217924e0d946e13225dd64e |
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font_14_sfnt_off004ef0d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4EF0D7 | 14460 bytes |
SHA-256: 1f636707f3ccd84a3ea0da715e2a9a2e6aea5bd4e5f6c1c66c2cb07b9a462a17 |
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font_15_sfnt_off004f0de0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4F0DE0 | 70888 bytes |
SHA-256: f031de5ace3f411f252ac45ea1f59f637c3944a0c40f7413ea38ff0b79d93b05 |
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font_16_sfnt_off004f6628.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4F6628 | 69692 bytes |
SHA-256: b2bf67a95db68f966ed017b3cabe26789c6c9b7522ced2c268a4659313b7b2c2 |
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font_17_sfnt_off004fe1c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4FE1C9 | 46552 bytes |
SHA-256: 854a0cd82f209e4d290f660a83998301cf6c7dd6d36f7563c1947c24b62521d5 |
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