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 0.9992
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://leonvi.ru/strik?utm_term=actividades+de+lectura+para+primero+de+primaria PDF link annotation
- https://cdn-cms.f-static.net/uploads/4427528/normal_606def883f638.pdfIn PDF document text
- https://xibareze.weebly.com/uploads/1/3/4/0/134040347/xojewagiliven.pdfIn PDF document text
- https://lobavasato.weebly.com/uploads/1/3/1/4/131483685/e517d139e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4505326/normal_6028a8a1ad178.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4383797/normal_5ffeb61d3a6a7.pdfIn PDF document text
- https://saxipapes.weebly.com/uploads/1/3/0/7/130738636/4335255.pdfIn PDF document text
- https://metonokosaza.weebly.com/uploads/1/3/2/6/132681587/19f00.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4407562/normal_5fe3b351eb203.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4422392/normal_6046640317069.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4404124/normal_5fc76fe493121.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386593/normal_605d590e1947e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4389793/normal_5ff289225ab60.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4471273/normal_601d9cf275e81.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379048/normal_603860c6473da.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378641/normal_602e29e9d7ff5.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4453537/normal_60036743d90fc.pdfIn PDF document text
- https://faxarumi.weebly.com/uploads/1/3/1/6/131606834/getunudoge-mevokefawobawe-dinovuxijekod-xogekilasuk.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/tumasun/lubumejufodome.pdfIn PDF document text
- https://s3.amazonaws.com/jevelel/44087596258.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7c2947b3-3de9-4322-bdeb-f73de65b9204/xbox_one_controller_wireless_vs_wired.pdfIn PDF document text
- https://s3.amazonaws.com/besafefaf/why_did_the_renaissance_began_in_italy_3_reasons.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f0908a4e-3731-4e8d-b353-96bd1c028da7/41261157723.pdfIn PDF document text
- https://s3.amazonaws.com/gaxuremewuger/78126635805.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_off0000ef2a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF2A | 5268 bytes |
SHA-256: 3f1d855310ba2a5d7bedd787140a47dadf58f43414e271cb9bc8bd97dd8e6e16 |
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font_01_sfnt_off00010100.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10100 | 11820 bytes |
SHA-256: 2a6a55f120f8b4b14c7d28f2e6a463a0b792a58b17004177ed6b25fbf028f9ed |
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