MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many pointing to disposable hosting, suggesting a link farm designed to manipulate search engine results. The primary URL, 'https://golowaki.ru/strik?utm_term=estill+voice+training+book+pdf', is presented as a search result for a specific book, likely to entice clicks. ClamAV and ML classifiers also flagged this PDF as malicious, indicating a high probability of phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://golowaki.ru/strik?utm_term=estill+voice+training+book+pdf PDF link annotation
- https://static.s123-cdn-static.com/uploads/4470540/normal_600913f8d3dc1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4463005/normal_601129cbbd5b9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4461245/normal_6052a15486fd7.pdfIn PDF document text
- https://voxisazemiruza.weebly.com/uploads/1/3/1/8/131871554/07e36.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4489834/normal_5fe63a2d65486.pdfIn PDF document text
- https://zaxifugerabapaz.weebly.com/uploads/1/3/1/0/131071175/8297986.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4467038/normal_5fc7461b115bc.pdfIn PDF document text
- https://povozunalurowub.weebly.com/uploads/1/3/4/6/134665666/rojibakobi.pdfIn PDF document text
- https://lutitisuputusi.weebly.com/uploads/1/3/1/4/131437948/dinidi-lagiwesedo-xafumusutuwuriv-basub.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4477878/normal_5fced628064fa.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381105/normal_6025f8dc31962.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374978/normal_5fdb156a352bf.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4376606/normal_603ba4e31d163.pdfIn PDF document text
- https://gexumuvebevo.weebly.com/uploads/1/3/4/3/134312536/vizozofabitiwijuj.pdfIn PDF document text
- https://rosokejasos.weebly.com/uploads/1/3/1/8/131871530/gasaxeje_rasavetalabok.pdfIn PDF document text
- https://lutividagij.weebly.com/uploads/1/3/4/8/134896544/3c0a21.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4479214/normal_604d1082b6669.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/d7c305b0-9d1c-4522-84e2-2820d022638e/difference_between_direct_and_indirect_coombs_test_in_pregnancy.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0ac4ebe8-4de4-4147-9e7f-888cc5f54814/29788760471.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ca63bc24-b294-425b-a8e6-9f411dec87be/direpidexolovufapememal.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_off00013034.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13034 | 5544 bytes |
SHA-256: f958dbac7eb51173e7403e25bf2f189c6c65222393459b6807ecd2036aac815d |
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font_01_sfnt_off00014324.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14324 | 10944 bytes |
SHA-256: 83e7a3e167a88f35b07f333434cae7424b1ffdb9276c7a0b81742b63675ee3a9 |
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