MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file contains a large number of external links, many hosted on disposable domains, as indicated by the PDF_SEO_LINK_FARM and PDF_SEO_DISPOSABLE_LINK_FARM heuristics. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or distributing further malware. The primary purpose appears to be directing users to a network of linked PDFs, potentially for SEO poisoning or to host malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://pelibifir.ru/award?keyword=farmacos+anticolinergicos+pdf PDF link annotation
- http://koxelovanalimu.getenjoyment.net/jexozumadi.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4464722/normal_6046e2212d308.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4382617/normal_600a1881a6170.pdfIn PDF document text
- https://lukobuguw.weebly.com/uploads/1/3/5/3/135396798/lifijofilerufexoxut.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4416514/normal_5ff85ce16c8cd.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4465269/normal_5febdadbc2878.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4471996/normal_602d72ead5dad.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4387826/normal_6005f3a4df868.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481684/normal_6036aa6ad57dc.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4425515/normal_5fe01c548c306.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4408992/normal_5fd31e8b78903.pdfIn PDF document text
- https://nawobelif.weebly.com/uploads/1/3/5/3/135307193/9524844.pdfIn PDF document text
- https://bevarepovorumi.weebly.com/uploads/1/3/2/3/132303359/nabamuvuvafi.pdfIn PDF document text
- https://ralirepiputup.weebly.com/uploads/1/3/4/8/134852471/4724744.pdfIn PDF document text
- https://nasaperexi.weebly.com/uploads/1/3/5/3/135351481/godelopaj.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454042/normal_5fd8e8cabadad.pdfIn PDF document text
- http://ladunosim.sportsontheweb.net/navy_seals_training_base_san_diego.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://59bb578d-b312-442a-858b-1a1a54b18a6c.filesusr.com/ugd/c79b1c_9cb2f0253ef247b9b15d07fba4123dbc.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/kovezodepugov/4307825159.pdfIn PDF document text
- https://0c285d22-23c9-487a-94f9-680958a2250f.filesusr.com/ugd/9c43ec_e4019a8d31484e1ab4f1616236919f7f.pdf?index=trueIn PDF document text
- https://c1f973cf-d719-4acb-8f9e-cd83ae4fb94d.filesusr.com/ugd/057766_24ccd451a7fb4055a989bf89aafa0c98.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/fopalew/pete_s_dragon_full_movie_english.pdfIn PDF document text
- http://sorisavitekinuj.onlinewebshop.net/circuit_of_culture_model.pdfIn PDF document text
- https://f2d828cf-06d9-46ea-85af-d88b0bc20d44.filesusr.com/ugd/501a20_708c06cc0e6c4d2eadcfc6379c8d516d.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_off0000ff79.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF79 | 5432 bytes |
SHA-256: d976bf333c665bc6e431125cb15644a93a184b3a62d67291059f72e50ea6047a |
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font_01_sfnt_off000111de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111DE | 12204 bytes |
SHA-256: 8b1ffd4c8ac6ce83c2ffe84898bb05847551f3d120c5490583efef930f3e49b9 |
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