MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of external links, many hosted on disposable domains, indicating a link farm designed to direct users to potentially malicious content. Heuristics and ML classifiers strongly suggest malicious intent, with ClamAV identifying it as a phishing trojan. The embedded URLs are likely used to distribute malware or lead to phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://midufefew.ru/award?keyword=actuarial+science+definition+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4380530/normal_6055f304964d0.pdfIn PDF document text
- https://cdn.sqhk.co/pifajaloro/iaieyig/31655745043.pdfIn PDF document text
- https://cdn.sqhk.co/simirides/hegfjaU/61345709478.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368746/normal_603d7be2c0d53.pdfIn PDF document text
- http://pofuxubilet.sportsontheweb.net/oxford_discover_5_grammar_book.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4376869/normal_601ff2b097c0e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4373502/normal_6002e85c740b5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387233/normal_60314b06ed658.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4461250/normal_5fe7fce8445b7.pdfIn PDF document text
- http://bumululoru.mywebcommunity.org/bagiputanulig.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4412165/normal_5fcb1f9c41df9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4464700/normal_601bb41d47dec.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://rorokepu.atwebpages.com/broncho_vaxom_3_5_bula.pdfIn PDF document text
- https://s3.amazonaws.com/xazarujokemus/kasutidezolanesizurebawi.pdfIn PDF document text
- https://5548a280-a194-4776-8019-0e256783c1fa.filesusr.com/ugd/f2c1dc_a3374acf50c64376ba4428fe322ab484.pdf?index=trueIn PDF document text
- https://3e206333-d6ff-4be5-a246-6289f7259d3b.filesusr.com/ugd/973a7d_02cde4f2fdc24afea33353f996fc294b.pdf?index=trueIn PDF document text
- https://c140f178-ee45-427e-91fe-a3c5f821f67e.filesusr.com/ugd/ebc5f9_62d44aca6e7942639ec48a7722876bfc.pdf?index=trueIn PDF document text
- http://xenezipulugiji.atwebpages.com/jfe_waste_to_energy.pdfIn PDF document text
- https://s3.amazonaws.com/kovezux/tacky_the_penguin.pdfIn PDF document text
- https://s3.amazonaws.com/tomamujuf/69201471432.pdfIn PDF document text
- https://b5b764bc-4fc6-48d7-9a4b-423a4d05f225.filesusr.com/ugd/3f2390_8f4f8188cee049688a726dfea15d10de.pdf?index=trueIn PDF document text
- http://memepev.myartsonline.com/43488360926.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_off0001174d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1174D | 5140 bytes |
SHA-256: ec6120303cf2b26eda258d3bb86010b213cac31722389b7c8e6da3500586ce71 |
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font_01_sfnt_off000128d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128D8 | 10844 bytes |
SHA-256: d8f6565bd9af80797459bc7a5eceb4775083620e91b067007f70235650e6e678 |
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