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 0.9994
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://jacksth.ru/strik?utm_term=more+scary+stories+to+tell+in+the+dark+3+pdf PDF link annotation
- https://cdn.sqhk.co/xinulezebi/XFojfTo/cruise_ships_still_at_sea_san_diego.pdfIn PDF document text
- https://cdn.sqhk.co/renapudovi/fWf4bjf/gopujilorajizemaxes.pdfIn PDF document text
- https://cdn.sqhk.co/rogumabutur/ifgfbtG/rocketbook_core_lined.pdfIn PDF document text
- http://gojuvop.iblogger.org/bewiwonamatisubako.pdfIn PDF document text
- https://cdn.sqhk.co/jigidokasaga/gf6icNj/respect_quotes_for_workplace.pdfIn PDF document text
- http://zofazosedam.iblogger.org/acg_guidelines_variceal_bleeding.pdfIn PDF document text
- https://cdn.sqhk.co/lerutefo/H2xhchc/laboratory_information_system_medical_definition.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://de99c131-68bf-4271-bcef-cda292486844.filesusr.com/ugd/f5892c_c8a3f50c3f9b418aa831b546ea76aaa6.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/75216b16-70ce-4e26-8110-2b2851b08990/2007_ford_f250_diesel_maintenance_schedule.pdfIn PDF document text
- https://eadb47d6-6712-4ecd-aa5a-2cdcf2d90b86.filesusr.com/ugd/c844bf_191eb246bdd4485abfec18727aa49f74.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/08c963da-f7dd-4029-afba-b438af6122f4/vuxinasazu.pdfIn PDF document text
- https://f1ddcea9-c323-452c-a4d3-aaefec61e50a.filesusr.com/ugd/defd8a_a43e6fa14ee147a69072ba8a781a444f.pdf?index=trueIn PDF document text
- https://be56f97b-0727-4a8e-a141-4155b83e75ac.filesusr.com/ugd/5034d0_ac14bbaeb889471b83bfe82385c461c9.pdf?index=trueIn PDF document text
- http://deneboj.rf.gd/junowos.pdfIn PDF document text
- https://e62d90d9-845b-491d-b9b1-804d55ccd6e6.filesusr.com/ugd/6af1ed_f7966485dfba46f5a14d7eb5789be4be.pdf?index=trueIn PDF document text
- https://ea64ff4c-51e6-4efc-8cc1-399682447901.filesusr.com/ugd/961f18_a64d312e68864210aaba7239c664f931.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/51ae60d8-91ce-4e3d-9f9a-0a815b7504db/gary_chapman_5_love_languages_dvd.pdfIn PDF document text
- http://daxuwogeme.epizy.com/apache_jena_fuseki.pdfIn PDF document text
- https://4dd4a32c-aced-41d2-87e6-7ff9ca8080d7.filesusr.com/ugd/6d6f33_636b784dc7d9468385a0423f20f02c27.pdf?index=trueIn PDF document text
- https://eb40363d-1d1f-4170-a897-f23f0f433116.filesusr.com/ugd/2a1429_b31987e01d3b43f7bcea057e5ceaa224.pdf?index=trueIn PDF document text
- http://nafufejuk.rf.gd/20396428355.pdfIn PDF document text
- https://acbe2b0b-ee64-4eea-b0ce-372b1aa9cc7a.filesusr.com/ugd/4bcc67_f6c646578ba242ada87b89c4ebe2609d.pdf?index=trueIn PDF document text
- https://6762652a-e869-40f3-960d-1446d4066230.filesusr.com/ugd/55e6b1_fb93d353279f426a8fe8c0c8994f2cbc.pdf?index=trueIn 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_off0000f535.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF535 | 5580 bytes |
SHA-256: dd7995a775741164ec53176280b9f23293a9dd4528d0019e99c5966ee865d759 |
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font_01_sfnt_off0001083f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1083F | 11508 bytes |
SHA-256: bb8f20f6de17d1dab3fa4bf51a789c42fee51077242c7abb84b1b2a5200faa96 |
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