MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic, suggesting it's used to drive traffic to other sites. One of these links, 'https://resalured.ru/strik?utm_term=prefixes+%2526+suffixes+worksheet+-+exercises+answers+pdf', is flagged as an external URI. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 5
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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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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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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://resalured.ru/strik?utm_term=prefixes+%2526+suffixes+worksheet+-+exercises+answers+pdf
- https://cdn-cms.f-static.net/uploads/4420028/normal_602714e988509.pdf
- https://cdn-cms.f-static.net/uploads/4475382/normal_6064647cd0478.pdf
- https://meripowubizaj.weebly.com/uploads/1/3/5/9/135959363/mekuf.pdf
- https://cdn-cms.f-static.net/uploads/4407784/normal_60275d8b8087b.pdf
- https://static.s123-cdn-static.com/uploads/4450732/normal_5fffd2eaf0aa5.pdf
- https://cdn-cms.f-static.net/uploads/4373239/normal_5fdc4b6ccbc17.pdf
- https://cdn-cms.f-static.net/uploads/4464873/normal_602b760b89c17.pdf
- https://cdn-cms.f-static.net/uploads/4465274/normal_603b51f7755dd.pdf
- https://mowasedexalobir.weebly.com/uploads/1/3/4/7/134743102/demajoma.pdf
- https://fisuxujatuma.weebly.com/uploads/1/3/5/3/135345375/2970558.pdf
- https://cdn-cms.f-static.net/uploads/4460983/normal_60673dfc08220.pdf
- https://cdn-cms.f-static.net/uploads/4412902/normal_6056817839b00.pdf
- https://rikidunojig.weebly.com/uploads/1/3/4/4/134488605/dumuzazejobezovogob.pdf
- https://danegatazi.weebly.com/uploads/1/3/0/7/130776269/445eab9a1167d.pdf
- https://cdn-cms.f-static.net/uploads/4375504/normal_6043134dbe947.pdf
- https://cdn-cms.f-static.net/uploads/4365599/normal_605f65b233571.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/b57f9b40-9af7-411a-8fd2-df7bdbd7e1d5/26076544637.pdf
- https://uploads.strikinglycdn.com/files/f6c9bfef-aa47-43c3-9332-4a1e79ded6c1/25264122855.pdf
- https://uploads.strikinglycdn.com/files/5243e4cf-f835-481b-98db-8a065e997990/new_bengali_full_movie_2019_free_download.pdf
- https://uploads.strikinglycdn.com/files/1dc61932-8054-4bf4-86d1-ece4c978c197/8729412475.pdf
- https://uploads.strikinglycdn.com/files/62940654-3a64-4af1-aaa4-25954905f49b/hp_officejet_6700_not_picking_up_paper.pdf
- https://uploads.strikinglycdn.com/files/09b6ebb0-24f7-4c82-83e0-f5f152b38bd7/vowifibopomedowi.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ecb1.binf8acb0497dbec1fd933a159fec1554d5e0124df27bc617d407913888c7dd6889 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECB1 | 4580 bytes |
font_01_sfnt_off0000fc59.bin6d167d4de6cdafbd04bfbe075ff79eddd9df7774e17cc10a5079d36012508378 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC59 | 19828 bytes |
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