MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, containing numerous external URLs, with at least one pointing to a suspicious domain ('resalured.ru'). The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool sometimes used to create malicious PDFs. The primary attack pattern appears to be directing users to potentially harmful external sites, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 6
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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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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://resalured.ru/123?utm_term=borderlands+3+fl4k+solo+guide PDF link annotation
- https://static.s123-cdn-static.com/uploads/4480383/normal_6002f24b8b163.pdfIn PDF document text
- https://fologonalufofu.weebly.com/uploads/1/3/4/6/134694067/gumipelet.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481988/normal_603d07d90daba.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374704/normal_600dece1008be.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4416806/normal_5ff115a9bc460.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485301/normal_6028ff2599a1c.pdfIn PDF document text
- http://zawugudumi.getenjoyment.net/juwuzajuvalunif.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417523/normal_6020cdc58d39d.pdfIn PDF document text
- https://dajidavibaral.weebly.com/uploads/1/3/4/6/134606929/ef5bde3481.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4453103/normal_6026c9807e868.pdfIn PDF document text
- https://mojebope.weebly.com/uploads/1/3/4/6/134609081/b9f84d8036a6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4456686/normal_6029530d04f49.pdfIn PDF document text
- https://xugugizebe.weebly.com/uploads/1/3/1/4/131482894/bac79cbbe.pdfIn PDF document text
- https://ganuzuvotaju.weebly.com/uploads/1/3/5/3/135304652/1853431.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/35e081aa-fdb1-43f8-88c9-c4660e5c335a/nutribullet_rx_repair_parts.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4d3e5cb3-8d8c-4b97-a490-843cbba9c27d/fudebanepobe.pdfIn PDF document text
- http://zatuvejamubolo.atwebpages.com/how_to_read_molecular_structures.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/347ff417-deac-4829-917c-2a72c1d4927e/32873988224.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/37fb451a-67f8-4bb6-92fc-901c714789e5/mopusuxeg.pdfIn PDF document text
- https://ff743420-c5e2-4527-a456-70ddb2a1abd8.filesusr.com/ugd/5178f2_17afcae3fbed4d8eb9a9e28afdbc2e73.pdf?index=trueIn PDF document text
- https://5a11eff3-0c7a-45dd-bb89-060d4d4d2060.filesusr.com/ugd/72216b_b9ac9b387a754dc7b5845ae557dd2a99.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_off0000f9d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9D1 | 5440 bytes |
SHA-256: 0831f3f85238fbdc1ff9049d1fcadb176678811ecf47a2f515e4fcf858042d30 |
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font_01_sfnt_off00010c6f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C6F | 10412 bytes |
SHA-256: 4899a6788550eebcf1a9a998c6d312c9e026c41c554823b47219c222d2ec2b96 |
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