MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is identified as malicious by ClamAV and an ML classifier, and it contains a significant number of external links, many pointing to disposable hosting. One of the primary URLs, 'https://baarspo.ru/strik?utm_term=thank+you+ma%2527am+pdf+langston+hughes', is likely part of a phishing or malware distribution scheme. The PDF structure and link farm behavior suggest it's designed to lure users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://baarspo.ru/strik?utm_term=thank+you+ma%2527am+pdf+langston+hughes PDF link annotation
- https://cdn.sqhk.co/sifolilo/egjOyih/retro_mini_arcade_machine_orb_gaming.pdfIn PDF document text
- https://cdn.sqhk.co/fupipevu/Qjja1gg/airport_near_atlantic_city_nj.pdfIn PDF document text
- http://apparently-home.com/lugovefiwadugofabojudajylit9.pdfIn PDF document text
- http://vanlit.ru/76640423394cv7jm.pdfIn PDF document text
- https://cdn.sqhk.co/vizejagojib/1jfie5i/69872128915.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4451930/normal_5fcabb57e0c12.pdfIn PDF document text
- http://espaceclient-cmb.com/kugamoferuvixovuligunobotym.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374002/normal_600e140d17bde.pdfIn PDF document text
- http://vinnipoh.space/baltimore_catechism_no_4iqqwb.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://d4f4546a-a836-4b3d-8651-c56b89608eca.filesusr.com/ugd/3e9e83_97d03e43821f4b589cfd66d68e95c853.pdf?index=trueIn PDF document text
- https://528f6e5c-6927-42ef-b7a5-a8f9c349750c.filesusr.com/ugd/07b979_703281acc3a447d3b97073c1bbbe3479.pdf?index=trueIn PDF document text
- https://2df275fc-a8dd-466e-be95-33fe0afe7bed.filesusr.com/ugd/9b6d1e_dbbd22e6dba64fc794698e2438c09f8a.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/0edb8702-721a-4754-9074-4dd6875de27d/japji_sahib_in_english.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6c8d7ec6-daa2-4884-92f8-50b69f151088/international_young_lawyers_association.pdfIn PDF document text
- https://05790d5e-93e9-4545-bcc4-99c37f081c18.filesusr.com/ugd/bff4d5_1de13fbc78c6408d95a3a93672775ac8.pdf?index=trueIn PDF document text
- https://c827806f-f9bf-4fd3-a4ce-e487c020fa79.filesusr.com/ugd/6fd45c_70ff62d3ee5641dd9d179d3bf70aa8f9.pdf?index=trueIn PDF document text
- https://fdb0147f-387d-4908-9c93-1ccdb5bf775f.filesusr.com/ugd/aea2e0_9fa0a40eef954d598580d2fedf0fc172.pdf?index=trueIn PDF document text
- https://e714dd98-3e42-4604-aba1-6d4b2506b1a8.filesusr.com/ugd/742965_cd71cc4d602c43c08214e4887955deef.pdf?index=trueIn PDF document text
- https://300a1258-3b13-45f7-80b9-bd8966f45320.filesusr.com/ugd/81888a_53e24fd9850f4f75a04481484ee271a3.pdf?index=trueIn PDF document text
- https://5b5cf7c4-d983-4e27-bd54-44d52fc9074e.filesusr.com/ugd/2f9450_8d6a0f27d616488380c2b8dd646cf327.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_off0000e1f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1F4 | 5508 bytes |
SHA-256: b2fd23471401124f08d455f7d87c29818e63da5d4bb2773b9e079c804234a467 |
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font_01_sfnt_off0000f4a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4A9 | 10500 bytes |
SHA-256: 64f4e1c902718ea6faaf689271fc48ad9f5d4a6f973157cf26cb6c11b3d1ddf5 |
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