MALICIOUS
254
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains numerous external links, many hosted on disposable domains, forming a link farm. Heuristics indicate a brand impersonation for credential phishing, specifically targeting American Express, and a lure for fake invoices or payments. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to exploit vulnerabilities or redirect users to phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 8
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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://kewemadagu.weebly.com/uploads/1/3/4/3/134351879/motizudofopeposuf.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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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://traffnew.ru/123?utm_term=d%2526d+critical+success+chart PDF link annotation
- https://kewemadagu.weebly.com/uploads/1/3/4/3/134351879/motizudofopeposuf.pdfIn PDF document text
- https://xilorufanil.weebly.com/uploads/1/3/0/7/130739938/59d813b81b.pdfIn PDF document text
- https://dusuwepi.weebly.com/uploads/1/3/4/5/134589125/wibuman.pdfIn PDF document text
- https://nazaxefuv.weebly.com/uploads/1/3/4/5/134589683/c0f01326d20cf2.pdfIn PDF document text
- https://sepafolelobonel.weebly.com/uploads/1/3/4/6/134614676/megawefan_xorudarufibe_nesuzifugulebit_nugidasud.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4469827/normal_5fb5a36bc26d8.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://uploads.strikinglycdn.com/files/c68f8f4d-6edc-48b8-8bb4-171961210556/4785713154.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fcd567c8-3412-4315-86a9-99153f5d442a/42834682181.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/74e80409-725f-41c7-be46-f2920449a7d5/davazigutawalunovugom.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6672e5fc-072d-43b0-93ff-1d5d17b914f1/online_car_repair_manuals_free_download.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5ae4eb30-13c8-4fdd-b2e3-ac24ab7f862f/bogib.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a0759042-479f-4e9a-be0a-22d17a057def/86320250853.pdfIn PDF document text
- https://s3.amazonaws.com/sigobija/36524811554.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc549005687f52b6b9e2140/t/5fc979ba80956a0b84bbf361/1607039426082/29482367733.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_off0000ca4f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA4F | 3484 bytes |
SHA-256: 33019dbc7dce146be9396d22118e5eda0a3a9187904cdfdddb9ce8b8b2194f61 |
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font_01_sfnt_off0000d5bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5BB | 10384 bytes |
SHA-256: c7b937fb5f5935deabeab0e158d4e60a9289802a85107485ed92307943ee099e |
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font_02_sfnt_off0000f949.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF949 | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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