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-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://krisoc.ru/pbw?utm_term=organic+chemistry+as+a+second+language+second+semester+topics+4th+edition+pdf PDF link annotation
- https://static.s123-cdn-static.com/uploads/4419424/normal_5ffdfce187249.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4467003/normal_5feaf34a0a6a1.pdfIn PDF document text
- https://fogodaxo.weebly.com/uploads/1/3/4/6/134606017/wisupesu.pdfIn PDF document text
- https://rujurujubawupof.weebly.com/uploads/1/3/0/9/130969172/wijexupafota_sojixipa_rogimasiwopom_gomagutufoj.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/f91b59d1-312f-482e-a225-00c49b476a64/classical_guitar_finger_exercises.pdfIn PDF document text
- http://gibuwodebu.pbworks.com/w/file/fetch/144527997/25791703492.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8831eb92-8cf5-41b7-ba67-f0cf7d81b121/xenumopofuze.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/23a29378-780d-4d35-90ef-db49811b295f/how_to_become_med_surg_nurse.pdfIn PDF document text
- http://nigezid.pbworks.com/f/what_are_the_7_characteristics_of_non_living_things.pdfIn PDF document text
- http://kiletejude.pbworks.com/w/file/fetch/144607029/35706708066.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8bcd74b7-63cf-400c-bfaf-15afd8e66fb3/how_do_i_change_my_exergen_thermometer_from_celsius_to_fahrenheit.pdfIn PDF document text
- http://funuvutidip.pbworks.com/f/kemone.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dfb27aaa-4102-4b70-a6da-8eb281eb25bc/87567846258.pdfIn PDF document text
- http://molitutolu.pbworks.com/f/how_to_clear_codes_with_innova_3030rs.pdfIn PDF document text
- http://zolunegoli.pbworks.com/w/file/fetch/144560268/raxexor.pdfIn PDF document text
- http://jowenoxo.pbworks.com/f/kingsman_the_secret_service_full_movie_download_in_hindi_480p_khatrimaza.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/08e9598c-91a8-4a7b-9fff-284962389f88/how_to_get_free_gems_in_zombs_royale_2020.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2a6c0331-fc68-4c05-af69-fb428d31de83/ga-ax370-gaming_5_ram_compatibility.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6967de3c-f73f-4f54-ba93-22faf2b4dbd5/plaque_index_scoring_criteria.pdfIn PDF document text
- http://zopujoxobug.pbworks.com/w/file/fetch/144419511/samsung_company_swot_analysis.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5e6e3f71-682f-4804-b57b-5ff14956737a/2021_ford_mustang_mach-e_select_range.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_off0000e953.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE953 | 5784 bytes |
SHA-256: 1f64bc04eecb6cdc297cbe8e352e819c0248611ce7fe7753899bfc3da82951d5 |
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font_01_sfnt_off0000fceb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCEB | 11204 bytes |
SHA-256: f1ce9be10c65504e33eac13f42124a615cc4fa37eabc902f0db9271d6b5022d4 |
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