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 pointing to disposable domains, indicating a link farm or SEO manipulation tactic. Heuristics like 'PDF_SEO_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly support this. ClamAV and ML classifiers also flagged the file as malicious, suggesting it may be used to distribute further malware or phishing content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://mezovuduw.ru/123?utm_term=academic+reading+passages+with+answers+pdf PDF link annotation
- https://bajiwiga.weebly.com/uploads/1/3/1/3/131379875/771420.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4427781/normal_5fe6550403eef.pdfIn PDF document text
- http://rivezetufizi.iblogger.org/ejemplos_de_monografias_cortas_sobre_el_alcoholismo.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4451025/normal_60541aee22182.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4490754/normal_5fe11ef91893a.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4418558/normal_5fe22ad973af4.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4378845/normal_5fcc1a2378ff8.pdfIn PDF document text
- https://pamukisap.weebly.com/uploads/1/3/4/7/134761215/d39cc85ce318a.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4392862/normal_5ffb9776b5866.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4445864/normal_6030a378d8694.pdfIn PDF document text
- http://lefavapexusa.iblogger.org/nuruvosipikapojuzodewip.pdfIn PDF document text
- https://lisewaduw.weebly.com/uploads/1/3/4/3/134358893/6740434.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4458615/normal_5fe85948d590f.pdfIn PDF document text
- https://rejileju.weebly.com/uploads/1/3/4/3/134335231/kewosozalamiderusixe.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413583/normal_6054603179b31.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4488315/normal_603e5b101b2c3.pdfIn PDF document text
- http://mumidiw.22web.org/dojinotefukeru.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4460461/normal_601aa5c70e5a0.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4484365/normal_5feb62680d310.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4449771/normal_60418be77536c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4404287/normal_5fda33393a063.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://1b6fbac1-9b66-4609-9151-81f5d4c316f7.filesusr.com/ugd/5e81b9_693304d09ad2461ca020c6d5a0eaeb08.pdf?index=trueIn PDF document text
- https://fe426b01-1dd0-498a-b08e-7ec37e320b94.filesusr.com/ugd/6b45f0_9373ea00b4df403fb9fba5fd09f8e0f5.pdf?index=trueIn PDF document text
- https://012a8781-80b6-4d33-8f63-56d56ef93f15.filesusr.com/ugd/6d3794_ed04283cbb1745fcb11222e6f9a31551.pdf?index=trueIn PDF document text
- https://1094d5c0-a920-47c7-a1de-7e2d56a92d84.filesusr.com/ugd/47b1e8_1a5effccdb624c14b4d8b5bc76c397e1.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_off0000f0ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0AB | 5616 bytes |
SHA-256: 2f8ba6ceac7dd2f107c6719a917dce5c20ad0567cdf484b14d9074948d55c566 |
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font_01_sfnt_off000103ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103AE | 11572 bytes |
SHA-256: ebca757e95f8c822f84513d7ea7de369354accfeafe33a7feb8990b3709d8174 |
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