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 hosted on disposable domains, suggesting a link farm or phishing operation. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically identified as phishing and potentially a trojan. The embedded URLs are likely used to redirect users to malicious sites for credential harvesting or further malware delivery.
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://pixomot.ru/pbw?utm_term=usmle+first+aid+pdf+2020 PDF link annotation
- https://static.s123-cdn-static.com/uploads/4368266/normal_5fc7650869cf5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403428/normal_6016d7acf23f6.pdfIn PDF document text
- https://zufuvedowenekoz.weebly.com/uploads/1/3/4/8/134861022/waxewaxifuluwokefan.pdfIn PDF document text
- https://musagitunoton.weebly.com/uploads/1/3/4/3/134368320/795ce4ccb82.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368478/normal_604d049222825.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393759/normal_60163a4f8a5db.pdfIn PDF document text
- https://fezuxikazosulav.weebly.com/uploads/1/3/1/3/131398093/sotulijotez.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4368751/normal_5ff935a2e24e8.pdfIn PDF document text
- https://lupadezojoxus.weebly.com/uploads/1/3/4/3/134318565/3885634.pdfIn PDF document text
- https://donikigegetala.weebly.com/uploads/1/3/4/3/134311768/ad1f24ee.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4499351/normal_603a9bc2a4ae2.pdfIn PDF document text
- https://wevoforu.weebly.com/uploads/1/3/4/5/134591306/5868967.pdfIn PDF document text
- https://pokifinib.weebly.com/uploads/1/3/4/0/134017941/larekebazesarinosogu.pdfIn PDF document text
- https://bovejivisesuja.weebly.com/uploads/1/3/1/3/131384116/f42b7c89e43.pdfIn PDF document text
- https://witufulovavivoj.weebly.com/uploads/1/3/4/3/134351467/zavidaxox-namixoduxexira-nebaxovivoxexu-jefave.pdfIn PDF document text
- https://korisupugi.weebly.com/uploads/1/3/5/3/135308649/c5b51e01.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4383806/normal_5ffcfe9344fe1.pdfIn PDF document text
- https://zuvagojajom.weebly.com/uploads/1/3/5/3/135398962/nagenonemevul_tupega.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4375705/normal_5fe372fd939f5.pdfIn PDF document text
- https://befadileniralan.weebly.com/uploads/1/3/6/0/136082268/76f26e02b.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://dajodovilav.pbworks.com/w/file/fetch/144544425/74941167029.pdfIn PDF document text
- http://sorawako.pbworks.com/w/file/fetch/144462114/sims_4_cc_folder_download_2020_maxis_match.pdfIn PDF document text
- http://letonepamusi.pbworks.com/w/file/fetch/144648369/17040219723.pdfIn PDF document text
- http://tereburokofe.pbworks.com/w/file/fetch/144629001/masomotixepajefirorido.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_off0000e695.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE695 | 5452 bytes |
SHA-256: 70c1ca435c1b8c77ede5ad8693abe5a10f20c4898bbe7295eaf0fd72fd05cab8 |
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font_01_sfnt_off0000f907.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF907 | 11172 bytes |
SHA-256: 84797c4f404b4d2abfd84af41abf489d9f1ea73b97c6d60b5ae11b95f82e1b3c |
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