MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The presence of numerous external PDF links suggests a link farm or SEO poisoning attempt to obscure the malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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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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://cctraff.ru/123?utm_term=the+reproductive+system+worksheet+answers
- https://cdn-cms.f-static.net/uploads/4383295/normal_5fa9a1f7b5d7e.pdf
- https://sofabavoxikavup.weebly.com/uploads/1/3/4/6/134636307/14b1a692bfc.pdf
- https://cdn-cms.f-static.net/uploads/4365612/normal_5f8730fb1f588.pdf
- https://cdn-cms.f-static.net/uploads/4409610/normal_5fb47008bd4d4.pdf
- https://cdn-cms.f-static.net/uploads/4427498/normal_5f99c994d7b30.pdf
- https://cdn-cms.f-static.net/uploads/4365582/normal_5f86fcdb5387c.pdf
- https://cdn-cms.f-static.net/uploads/4493891/normal_5fb37cb8cb8eb.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/a16107fc-700b-4506-bfa2-e762b46319b3/ipad_mini_model_md531ll_a_generation.pdf
- https://s3.amazonaws.com/tuzamada/free_download_surat_yasin_dan_tahlil.pdf
- https://s3.amazonaws.com/suximawo/map_of_etna_maine.pdf
- https://uploads.strikinglycdn.com/files/917af1b8-faa4-4373-895f-650f09df68a1/austin_isd_blend_login.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b3a1.bind132a16fcc5b9bf07e3e4e4771a0dee9a19dc716c8813be6dfe24a34902b63f4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3A1 | 5548 bytes |
font_01_sfnt_off0000c670.bin2aad02a03f2b986709e4622649b7a10c2c7a1f795a6a9a852440dc3b57d7f8e2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC670 | 10212 bytes |
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