MALICIOUS
186
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. 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 0.9996
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://baarspo.ru/strik?utm_term=reasons+why+the+sun+is+a+unique+star PDF link annotation
- https://cdn.sqhk.co/kuwusemob/Cnjdbf2/international_marketing_notes.pdfIn PDF document text
- http://fuvidevifa.scienceontheweb.net/handbook_of_operational_amplifier_applications.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369901/normal_5fdaabe14eafe.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4408483/normal_5fd8fbba4018a.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4393348/normal_5feff63377639.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365553/normal_600ce7d7db54a.pdfIn PDF document text
- http://lagejarejitog.mypressonline.com/american_english_file_starter_teacher_s_book.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4445343/normal_606025abcd6e1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420924/normal_5fe6ffd72e51b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421208/normal_603ac95dba5c4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384150/normal_601f291d8d18c.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4379049/normal_5fc7680a2b5c4.pdfIn PDF document text
- https://cdn.sqhk.co/nuzitomizaj/jghd3gd/76333862492.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4402261/normal_6025efb2981f3.pdfIn PDF document text
- http://laludinemolat.sportsontheweb.net/lord_of_the_flies_chapter_7_quiz.pdfIn PDF document text
- http://nakekizedexu.getenjoyment.net/a_la_recherche_du_temps_perdu_proust_commentaire.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://d4e73f68-9870-4c81-be0c-0a6dd7607cd2.filesusr.com/ugd/6f53d7_abef0315825e493c95870b7be8756c64.pdf?index=trueIn PDF document text
- http://kuxoxokazutuv.myartsonline.com/reaccion_antigeno_anticuerpo.pdfIn PDF document text
- https://12c21f6a-324e-488c-af83-7e1076049286.filesusr.com/ugd/e84f25_b30ded321cca4afd8014057bafe1f36e.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/wixamupelinere/etude_house_ceramide_sheet_mask.pdfIn PDF document text
- https://s3.amazonaws.com/pukaridimupo/520_lexile_to_guided_reading_level.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_off00010d5a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D5A | 4952 bytes |
SHA-256: 7b837053e1d88c04c677fc575c199b210c0e285a4ab091decd0fa6ede6f019d8 |
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font_01_sfnt_off00011e3c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E3C | 10784 bytes |
SHA-256: 7b0dff9d6c78dda3863a52ab42b2c8bedef1edf29ce069c0a52c274132e09863 |
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font_02_sfnt_off00014315.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14315 | 4324 bytes |
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71 |
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