MALICIOUS
194
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. It uses an invoice-themed lure. 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 0.9995
Heuristics 7
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://bologen.ru/award?keyword=english+synonyms+their+meanings+and+usage+pdf PDF link annotation
- https://milonotupilo.weebly.com/uploads/1/3/5/3/135347339/lukebox_bebunel_lafomovesa_weruzipa.pdfIn PDF document text
- http://tebaxedo.22web.org/16839796923.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4451954/normal_5ffa1460ea08e.pdfIn PDF document text
- https://dopuxaponaxu.weebly.com/uploads/1/3/2/6/132695391/2904473.pdfIn PDF document text
- https://vezinamitin.weebly.com/uploads/1/3/5/9/135984824/sodapiselu-fewopideleg-zavelupaxek.pdfIn PDF document text
- http://jebuzakawug.iblogger.org/punctuation_worksheet_grade_5.pdfIn PDF document text
- http://bokazisenu.22web.org/online_xml_formatter_checker.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4425501/normal_600cff8cd433c.pdfIn PDF document text
- https://jokisutenewaj.weebly.com/uploads/1/3/1/4/131483229/xekeridopuduju-dabekelutuzij-xalul.pdfIn PDF document text
- https://jeximikukadolo.weebly.com/uploads/1/3/1/6/131636734/7dd9643e7c458a6.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4411917/normal_5fcc0d5e7706f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4488133/normal_603be42ccdc59.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://ca108e69-7b6b-43f0-8f16-d96ebeb8a33d.filesusr.com/ugd/79e0dc_f5fd724481744166849f1eb4f212f37d.pdf?index=trueIn PDF document text
- http://jejafajiw.rf.gd/nautical_baby_shower_invitation_template.pdfIn PDF document text
- http://tazefuwavubu.rf.gd/gndu_date_sheet_ba_3_sem.pdfIn PDF document text
- https://9eb5ee95-128e-4115-bcd6-d8db8525ce49.filesusr.com/ugd/9904c2_5c70d5864a3545e79e29123a3db6a581.pdf?index=trueIn PDF document text
- http://wajogiteseg.epizy.com/how_much_does_financial_peace_university_cost.pdfIn PDF document text
- https://d89d6b52-6e76-4e18-bccb-bd7428cfddad.filesusr.com/ugd/02beb7_df5df30c8c7d4ef5b05b50c255294a0b.pdf?index=trueIn PDF document text
- http://xipijokezi.rf.gd/adblock_blocker_for_chrome_pc_free.pdfIn PDF document text
- https://8d94caac-80d5-4f6d-a73a-04ed47837dc1.filesusr.com/ugd/585b1d_7701576d703f4cab925451d04284b798.pdf?index=trueIn PDF document text
- https://4bf641bf-117a-4913-931f-55e49063997f.filesusr.com/ugd/5befcb_c9bf8d7bfac24976b8fcdfca575c5964.pdf?index=trueIn PDF document text
- http://xumupeg.rf.gd/nebusulosulibifed.pdfIn PDF document text
- http://xofemamerisip.epizy.com/lactancia_materna_y_posiciones_recomendadas_para_amamantar_al_nio.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_off00015956.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15956 | 5512 bytes |
SHA-256: a05bb99a482af53126a24c3a961da0eb80e550bae19a1a6bf76c66d8c2db5215 |
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font_01_sfnt_off00016bf7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16BF7 | 11008 bytes |
SHA-256: 49ca13c538fdb8dea5d787ca65b8b685019e8d6436ab173b72b68194f03565f5 |
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