MALICIOUS
246
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 brand-impersonation credential phishing. 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 0.9998
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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Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISHDocument impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://tizevilujiv.weebly.com/uploads/1/3/1/4/131406709/rebedava.pdf.
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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://leonvi.ru/123?utm_term=what+are+the+curriculum+evaluation+models PDF link annotation
- https://tizevilujiv.weebly.com/uploads/1/3/1/4/131406709/rebedava.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4506170/normal_5fd7a38fb1efa.pdfIn PDF document text
- https://towowiwegopute.weebly.com/uploads/1/3/4/0/134019464/retofofipofida_vuliwigatux_kopemimeje.pdfIn PDF document text
- http://www-sfr-fr-monespace.com/kiwilafigifitudiginotib9rn3l.pdfIn PDF document text
- https://wavenugila.weebly.com/uploads/1/3/4/8/134852162/zuxozudumo_vipefejivis_vovevegolabi.pdfIn PDF document text
- https://tegidaweriwasul.weebly.com/uploads/1/3/1/4/131483440/nuvuwuforiposijatu.pdfIn PDF document text
- https://sizizobit.weebly.com/uploads/1/3/5/3/135389707/sivututegukad_zarerijigupaka_bunemufuj_riteko.pdfIn PDF document text
- https://boxatikavizag.weebly.com/uploads/1/3/4/6/134680825/fowepilan.pdfIn PDF document text
- https://dawawasokiju.weebly.com/uploads/1/3/1/4/131408838/zoropapejiluviretaj.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485322/normal_5fd9b8e0d393e.pdfIn PDF document text
- http://kompledom.com/81680092154tnkmq.pdfIn PDF document text
- https://xapenivivafozeb.weebly.com/uploads/1/3/1/3/131379266/839841.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369316/normal_6013f34d5bece.pdfIn PDF document text
- https://jobadenel.weebly.com/uploads/1/3/1/1/131164033/fepuzupibaja.pdfIn PDF document text
- http://salebox.shop/towaduxojuvapogefulebogvglt0.pdfIn PDF document text
- http://lakshmi-store.ru/chauvin_arnoux_6250_manualxbmzi.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4446512/normal_60117c8fa4a2d.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/lupebesu/bike_racer_game_free_for_mobile.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_off00015727.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15727 | 5252 bytes |
SHA-256: ef5f32dcebfcfdfb8db32b306d49fb6b88112be14ca4ea01c95dbd0da0fdb102 |
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font_01_sfnt_off000168e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x168E4 | 12056 bytes |
SHA-256: 0c5ca8eae82589277dc5f9c390032836617038b5a34b291c84d17c15351a95aa |
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