MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of external links to other PDF documents, many hosted on disposable domains, indicating a link farm or SEO manipulation tactic. ClamAV detected this file as Pdf.Phishing.Trojan, and ML classification yielded a high probability of maliciousness. The embedded URLs likely serve as a distribution mechanism for further malicious content or phishing attempts.
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://leonvi.ru/strik?utm_term=how+to+find+the+perimeter+of+a+half+circle+with+radius PDF link annotation
- https://gexemuxu.weebly.com/uploads/1/3/5/3/135394015/2611106.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4462694/normal_5fc8973e5425f.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4387566/normal_5ff551652c01a.pdfIn PDF document text
- https://luvupomadimudux.weebly.com/uploads/1/3/4/3/134350134/a3050490a9a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4404116/normal_6039cdb6079d3.pdfIn PDF document text
- https://vugogirofezufus.weebly.com/uploads/1/3/4/3/134355312/xopevovisu.pdfIn PDF document text
- https://pafediroloz.weebly.com/uploads/1/3/1/3/131379748/vewiw.pdfIn PDF document text
- https://static.s123-cdn-static-d.com/uploads/4476126/normal_60affafaeaef9.pdfIn PDF document text
- https://xolufoxe.weebly.com/uploads/1/3/4/5/134501271/kulosadibafarozeko.pdfIn PDF document text
- https://moleresudiba.weebly.com/uploads/1/3/4/4/134447347/mexazamofos.pdfIn PDF document text
- https://besuxape.weebly.com/uploads/1/3/4/3/134374749/1547364.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377403/normal_606dded6d2120.pdfIn PDF document text
- https://fepexugoroba.weebly.com/uploads/1/3/4/4/134469665/1484e155fe0.pdfIn PDF document text
- https://vomefamatufovo.weebly.com/uploads/1/3/4/3/134378522/8f99dd7ad78b.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/ecfd1022-d801-4f98-b2db-4ccbb47cecc5/jugo_verde_para_bajar_de_peso_en_7_das_ingredientes.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/094bb056-82b4-45cd-a82a-bd15301fcdb8/basetemifatevefib.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d1b657ad-b350-464c-95b7-339c4cf4485d/7103079389.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/489c60ac-33c9-496d-a1e9-af3e54751d0d/47382932569.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6b217812-977b-46b7-abef-2220e140fec4/zijiwexowilatebitanogotod.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e7e93a44-2ab4-4942-8296-25600c0b847e/who_invented_the_internet_uk.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e885609d-2714-4e2c-b204-f4117cc77acc/zurazaviwabore.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/aa6ce27b-2801-4b5f-ac83-24fab887825b/dwarf_fortress_reddit_humans.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_off0000f33b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF33B | 5448 bytes |
SHA-256: 6d1ac8b344b53d04b8b272427f560124eb263cb8421f2e0b6be853bab3d0c989 |
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font_01_sfnt_off000105a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105A9 | 11724 bytes |
SHA-256: 46f1f7144837a3a672aa688f61597f0e9722f6c72ff67feb7fc5717808ab3a63 |
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