MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by ClamAV as 'Pdf.Phishing.Trojan' and a machine learning classifier indicated a high probability of maliciousness. The document body contains a lure referencing 'Cisco 4742hdc remote code', and numerous external links were found, suggesting a phishing or SEO-based malicious distribution strategy. While no scripts were explicitly extracted, the PDF structure and URL patterns are indicative of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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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://pelibifir.ru/strik?utm_term=cisco+4742hdc+remote+code PDF link annotation
- http://yandex-dostav.ru/joguvaxet6krtd.pdfIn PDF document text
- http://carinsusa.info/spectrum_math_workbook_grade_8_free92cvz.pdfIn PDF document text
- http://tumbochka.space/what_is_latent_heat_of_fusion_definitionjd5eo.pdfIn PDF document text
- http://fruit-italy.space/600888219567aij1.pdfIn PDF document text
- http://sodahq.pro/noxudumugopesck64u.pdfIn PDF document text
- http://jakartapro.xyz/3751031593iy9q6.pdfIn PDF document text
- http://kind-insta.site/maninorurawinivuw2qpkk.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/nuruvapozixix/62904720619.pdfIn PDF document text
- https://cb8582fb-ab29-4f13-bfd4-623ca244ab52.filesusr.com/ugd/d61b30_aebbd1c685d6435faa7e2875f0fb65ba.pdf?index=trueIn PDF document text
- https://22e365c6-0853-42e1-82f8-83473bf9c0bf.filesusr.com/ugd/217d68_6e907d8af2dd4592b2e37ea5277076f7.pdf?index=trueIn PDF document text
- https://2f8a6ab9-e864-4757-b083-6627a13f4c48.filesusr.com/ugd/405339_597510e7e1ad45dea384503ca279cff1.pdf?index=trueIn PDF document text
- https://054d5c26-596f-48a3-87a7-0fc79031e5db.filesusr.com/ugd/599026_a6ca78c36a11418587dc6580c3d0e19d.pdf?index=trueIn PDF document text
- https://551f0ad2-75d1-4009-b90b-2f3e3e20230b.filesusr.com/ugd/c2bf0a_330d4ea7152f4b138fe90529a904b087.pdf?index=trueIn PDF document text
- https://1c684d3d-b1aa-4d58-8f8e-408f9cf37fac.filesusr.com/ugd/64d889_9019d2c6a0844741b522cbbd54b4ac08.pdf?index=trueIn PDF document text
- https://f200304d-316b-45a9-b05c-680123ec6d1a.filesusr.com/ugd/aad1a2_4351778d7a6a4a7e80601d2ae51a6ca7.pdf?index=trueIn PDF document text
- https://a7da3e60-63c8-46c1-a846-eab7df628ed2.filesusr.com/ugd/bba345_f7bc9fac63094b7bbcc116b864ab9dda.pdf?index=trueIn PDF document text
- https://7fd92c66-d3af-485c-b7a9-31529ddfb1b5.filesusr.com/ugd/997d0f_e17cbfdddc8046459ccc9beabec646ad.pdf?index=trueIn PDF document text
- https://85ed388a-52e0-4e79-9737-9d4b769dda71.filesusr.com/ugd/bb10c5_a38124a65376479686553561dad2b6af.pdf?index=trueIn PDF document text
- https://75edee45-cd08-43cb-a752-0c33e5c2343f.filesusr.com/ugd/a7c173_622519cd6c454ba5bf1754cbfa7b9d10.pdf?index=trueIn PDF document text
- https://84d51d8d-5932-465a-b044-5d36dace581c.filesusr.com/ugd/98e2de_50b96a79f2ce4e9d987d2978f0b56b26.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/fenatagazise/46187618208.pdfIn PDF document text
- https://s3.amazonaws.com/lurutopobi/who_are_the_clergy_at_canterbury_cathedral.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/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
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cb47.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB47 | 5144 bytes |
SHA-256: 03eeac4ef3af57aa7b152f8cbb5403f8d5caaf73df3d2122c9eef786a6b7095f |
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font_01_sfnt_off0000dca8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCA8 | 9952 bytes |
SHA-256: 94910a09363e7ae125751a4e482a6fd71805ab83f3c4f389e249f533a0f55481 |
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