MALICIOUS
206
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 7
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PRC/3D content in PDF medium PDF_PRC_3DPDF contains PRC 3D content. PRC/U3D parsers have been a recurring Adobe Reader attack surface; treat as a related parser-exploit indicator rather than a specific CVE match.
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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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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://vilenefex.ru/strik?utm_term=how+many+total+atoms+are+present+in+this+compound+h2o2 PDF link annotation
- https://zutiwemozebej.weebly.com/uploads/1/3/2/7/132712207/0e3c8da76.pdfIn PDF document text
- https://fiwugepupuladav.weebly.com/uploads/1/3/4/7/134740110/614ecae88.pdfIn PDF document text
- http://bluebadgeform.com/26036038547oqmuf.pdfIn PDF document text
- https://tiwibuvemugijaj.weebly.com/uploads/1/3/0/7/130776889/454472.pdfIn PDF document text
- http://smirnoff-optic.com/xujuguvw5cp.pdfIn PDF document text
- http://closemaze.com/all_clad_slow_cooker_settingstdu4u.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/98f45965-cd8d-4762-a1b0-f302ed7a468c/45838346729.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d1c05537-295d-4580-bdb6-811557ccae2f/vemunov.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e8131fa8-df0b-4a0c-91bc-fdcf055ac9eb/what_does_cricut_expression_2_do.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/80edee4f-dd8d-4457-9986-c1d20156dcaa/kenwood_dnx692_wiring_diagram.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/07a75b0f-eab3-40cc-91bb-1cf8dd30f3ec/34024425163.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7f23f970-0157-4ffe-8e78-c78ffd4c1af7/77540627141.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/af1cae51-5b44-4142-a9eb-08a3b450a2e8/to_be_better_than_synonym.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/79bce3dc-ad5b-4035-b046-a9762976a8db/53981077222.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6246968d-256e-4d75-b0ae-1124a36f3a13/origami_heart_box_instructions_easy.pdfIn PDF document text
- https://s3.amazonaws.com/fewunadupop/us_army_football_uniforms_2020.pdfIn PDF document text
- https://s3.amazonaws.com/tajimipojimo/2012_chevy_malibu_led_light_assembly.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b1557086-18c5-4707-9fe6-d80100cf49f3/tree_of_life_irish_symbol.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00016b88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16B88 | 5480 bytes |
SHA-256: f3fd302649361b8c79dd01c4e8db2f4d770c645f939d04910419fb9453ad86b4 |
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font_01_sfnt_off00017e06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17E06 | 11184 bytes |
SHA-256: e33d7bf262bc3c96fb34c4a771bc375b177358ea5e66db2cae2c4a9de736eff8 |
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font_02_sfnt_off0001a41e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A41E | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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