MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ClamAV and an ML classifier, with heuristics indicating an embedded external URI. The document body, though heavily obfuscated, contains text that appears to be a book title, suggesting a social engineering lure. The primary IOC is the external URI which likely leads to a phishing page or malware download.
Machine Learning
- Nyx PDF Classifier malicious score 0.9396
Heuristics 4
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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External URI info PDF_URIPDF contains an external URL action
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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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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://nipisod.ru/wb?keyword=pillars%20of%20the%20earth%20trilogy%20book%203
- https://cdn-cms.f-static.net/uploads/4425917/normal_6033d73f1ea4c.pdf
- https://cdn-cms.f-static.net/uploads/4452392/normal_5fd3aa1150c77.pdf
- https://static.s123-cdn-static-d.com/uploads/4428045/normal_60b10a022ff87.pdf
- https://static.s123-cdn-static.com/uploads/4410206/normal_5fcbfa1888d21.pdf
- https://cdn-cms.f-static.net/uploads/4460263/normal_60262302b840e.pdf
- https://cdn-cms.f-static.net/uploads/4496378/normal_6012ea29c255d.pdf
- https://cdn-cms.f-static.net/uploads/4472773/normal_600f4a31ac01d.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://uploads.strikinglycdn.com/files/1d4597b3-3be0-43b9-9760-48a57ed8449d/12265424789.pdf
- https://uploads.strikinglycdn.com/files/a7e2063b-1998-4f59-9838-cad271362608/14557221035.pdf
- https://uploads.strikinglycdn.com/files/a32f3580-a32c-4013-b20a-ee35f50759eb/behind_closed_doors_book_movie.pdf
- https://uploads.strikinglycdn.com/files/b244168c-8e98-4318-8d23-e37784aee9ef/nurozisasaluv.pdf
- https://uploads.strikinglycdn.com/files/ffddf91c-1cb9-4d52-816a-c66ed4eade3a/do_roku_tvs_have_bluetooth.pdf
- https://uploads.strikinglycdn.com/files/d29aba3b-4cbb-4a9a-99a0-3d8e0329f3ad/derechos_fundamentales_en_estados_unidos.pdf
- https://uploads.strikinglycdn.com/files/b85a2f68-5909-4d4e-853b-0b5ad9ae15ca/how_to_rig_for_redfish_in_the_surf.pdf
- https://uploads.strikinglycdn.com/files/c05e0a5a-e265-4a59-9c58-240479809331/65724684561.pdf
- https://uploads.strikinglycdn.com/files/681601db-02b5-4a01-bbb9-b489cfa9d91a/9821188198.pdf
- https://uploads.strikinglycdn.com/files/2f9d0532-38b3-4160-9968-61ca76c0127a/ravujugifenubawakil.pdf
- https://uploads.strikinglycdn.com/files/8ecb40af-d1b1-4710-8e18-8de2964022dd/19488488776.pdf
- https://uploads.strikinglycdn.com/files/d1c3e670-6063-4af9-bfc7-718c63d883e4/how_to_fix_white_knight_tumble_dryer_door_catch.pdf
- https://uploads.strikinglycdn.com/files/9096d665-6e9b-4390-af57-41deadc08886/negasux.pdf
- https://uploads.strikinglycdn.com/files/9bad660e-d9d5-45e1-ab04-6a5217aacf58/44335776003.pdf
- http://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d787.bin989373d11a865a4dfd51ebaf73f757d87895fdf923b130ab0411f5f05ad5f87f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD787 | 5184 bytes |
font_01_sfnt_off0000e941.bin6d1e086df5c5cd008ce4bd8e419e08e5a7b914d1f69e37247f2ddbd143a000c1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE941 | 10392 bytes |
font_02_sfnt_off00010cbc.bin0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CBC | 4324 bytes |
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