MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple embedded URLs, with a primary focus on 'https://seumenha.ru/strik?utm_term=covid+19+risk+assessment+for+pubs'. Heuristics indicate this is a link farm on disposable hosting and a callback phishing lure, suggesting a malicious intent to direct users to potentially harmful content. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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 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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://seumenha.ru/strik?utm_term=covid+19+risk+assessment+for+pubs PDF link annotation
- http://rezisekuvaz.mypressonline.com/fowigiju.pdfIn PDF document text
- http://zonokiwuwagupu.getenjoyment.net/albuquerque_street_map.pdfIn PDF document text
- https://cdn.sqhk.co/pategazikiw/ighfpA2/tiny_bubbles_singer_crossword_wsj.pdfIn PDF document text
- https://cdn.sqhk.co/lipetebo/2Umiayp/68950445928.pdfIn PDF document text
- http://vivekawiga.sportsontheweb.net/85654067565.pdfIn PDF document text
- https://cdn.sqhk.co/safimowexaw/YKNidic/iron_items_gst_rate.pdfIn PDF document text
- http://somixewavado.sportsontheweb.net/70123269481.pdfIn PDF document text
- http://zomolejefej.mywebcommunity.org/42561336821.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/66f715fe-4461-4b6e-a125-5d24932b316f/nupezizok.pdfIn PDF document text
- http://revodez.myartsonline.com/buhner_healing_lyme.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f92c0350-4636-447a-9c9b-d57c4356293e/the_lottery_discussion_questions_and_answers.pdfIn PDF document text
- https://7fad2989-91b8-457c-89bc-9a0e7aeef19f.filesusr.com/ugd/b03ff3_7b63feba9b8147cb9514867778df3243.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/wexukufedepim/povexapuk.pdfIn PDF document text
- http://sasukagisodubex.onlinewebshop.net/dezovolajabaxowuzig.pdfIn PDF document text
- https://bb491b24-4c81-4ccc-8daa-bf1baeb171c2.filesusr.com/ugd/93c935_593c630b260e4731a7117addc93378ff.pdf?index=trueIn PDF document text
- https://40785fcd-1e5e-4316-9306-5db1d5795eae.filesusr.com/ugd/2f07a1_c006f6f7d4e24556890ffe599d2e2b22.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/e25b225e-b960-4941-a8eb-1b38419d728d/69765134678.pdfIn PDF document text
- http://tefetuzuzip.myartsonline.com/jisowurusunarokodogo.pdfIn PDF document text
- http://mifojizu.myartsonline.com/8836745031.pdfIn PDF document text
- https://s3.amazonaws.com/fajixe/biblia_de_estudio_apologetica_descargar.pdfIn PDF document text
- https://s3.amazonaws.com/zabejuvijolu/butazuxo.pdfIn PDF document text
- https://s3.amazonaws.com/bivanud/vasari_lives_of_the_artists.pdfIn PDF document text
- https://s3.amazonaws.com/gelawiweza/cm_12._1_for_yureka.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_off000104c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104C7 | 5532 bytes |
SHA-256: a16614e79d908b48a1b160aa207fc49444f4f69e84a0ed1b59d17cbeb76ae15e |
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font_01_sfnt_off00011788.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11788 | 10660 bytes |
SHA-256: 87b61ae1233da1c7434abc3d4b1229df8f3d0b7254c60fd111521b748ad0958c |
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font_02_sfnt_off00013bed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13BED | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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