MALICIOUS
186
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 0.9996
Heuristics 6
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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://nipisod.ru/123?utm_term=cambridge+collocation+dictionary+free++pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4366011/normal_6012dfd4a03bf.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4481665/normal_5ff395f4e32ee.pdfIn PDF document text
- https://static.s123-cdn-static-d.com/uploads/4366027/normal_60b05b972c29a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454562/normal_6022c43e5f7d8.pdfIn PDF document text
- https://dugilosokufaku.weebly.com/uploads/1/3/4/6/134610324/gulubi_bakezupum_jinurudiwama_sidevufemabidoj.pdfIn PDF document text
- https://timowerudep.weebly.com/uploads/1/3/0/7/130738780/noduxidaji-bopofekuje-disasukefitub.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4410702/normal_60400b03e6fa7.pdfIn PDF document text
- https://gexamefirizawem.weebly.com/uploads/1/3/4/6/134668325/eb2a517a6af667c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454547/normal_60369fb50e544.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365602/normal_601a022cc2539.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485801/normal_60319b1a65259.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4457881/normal_5feb01b0642a1.pdfIn PDF document text
- https://bunavomotuta.weebly.com/uploads/1/3/4/6/134606544/dabatu_xufonigesugojan_zosazuwok.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4376105/normal_6027b28803995.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485826/normal_6047c79a73ab4.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/f5fc684e-0a11-4ab7-8b51-4af7b72360ce/godarupikosiwo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2093b312-a634-4b49-add0-2d5ccd62aabe/tirobekap.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a72b5987-7fdb-4cdc-a25e-beb74a79187c/bijikeket.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e4f476f7-b763-401f-9a1c-8fb16e5e16a3/pentair_triton_ii_commercial_parts.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2415c6d3-080f-465c-a9e7-5644c82cba77/kenmore_300_series_water_softener.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6e5160c9-b2bd-4c60-8b20-a3f0a0eda4cb/memrias_pstumas_de_brs_cubas_download.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_off0000e6ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6BA | 5348 bytes |
SHA-256: fffaa782e19682e203e3c83289e57de13a26318ad594fc1e0299bc582d862fb1 |
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font_01_sfnt_off0000f8dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8DD | 10288 bytes |
SHA-256: 0e4313b062feb01453504ef340332445b6e9ea528ed45b2af2fb70dca9cbb962 |
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font_02_sfnt_off00011c20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C20 | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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