MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of external links, many hosted on disposable domains, indicating a link farm or SEO spam operation. The primary URL, 'https://krisoc.ru/pbw?utm_term=how+to+turn+off+airpods+i11', suggests a lure related to AirPods to drive traffic to these sites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://krisoc.ru/pbw?utm_term=how+to+turn+off+airpods+i11 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4368244/normal_5fdc08687044d.pdfIn PDF document text
- https://jateredadiwez.weebly.com/uploads/1/3/1/6/131606262/6681484.pdfIn PDF document text
- https://senakubedezozi.weebly.com/uploads/1/3/1/6/131606366/3072043.pdfIn PDF document text
- https://niladomawinur.weebly.com/uploads/1/3/4/8/134875702/6558435.pdfIn PDF document text
- https://golisarupu.weebly.com/uploads/1/3/5/3/135317681/a7c44699b6dec8a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375515/normal_6052a44110e9b.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4409243/normal_5feeb34a8d834.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4501383/normal_6003aa13eed44.pdfIn PDF document text
- https://subarijarasojud.weebly.com/uploads/1/3/4/3/134332778/lazowuli-kakegewidevor-vomajoreroxu-pogavefagoxe.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4478927/normal_605efff213b96.pdfIn PDF document text
- https://fejenugid.weebly.com/uploads/1/3/4/0/134016750/4297059.pdfIn PDF document text
- https://kadeniki.weebly.com/uploads/1/3/4/0/134097858/melozokasajapejibud.pdfIn PDF document text
- https://static.s123-cdn-static-d.com/uploads/4420025/normal_60b5c9f24dacc.pdfIn PDF document text
- https://bizutimuja.weebly.com/uploads/1/3/3/9/133999747/mimirogodofegegab.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378390/normal_600ea6db9434c.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4371248/normal_5feb9d5dccfff.pdfIn PDF document text
- https://reredutubonuki.weebly.com/uploads/1/3/0/7/130775370/665bbdf.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/ecf34f73-0c15-4404-b41c-969d508b3c85/21529485527.pdfIn PDF document text
- http://detomipipu.pbworks.com/f/proto_germanic_language.pdfIn PDF document text
- http://refarumiba.pbworks.com/w/file/fetch/144600528/98740163984.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0c37288e-f42e-4f63-a4ad-9206a9703f6d/16994719357.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ccda.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCDA | 4872 bytes |
SHA-256: d2b3414f2c8615c3c944b4362ae3c78cae4043ebcf2bd50dcb1db754951fa5ee |
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font_01_sfnt_off0000dd83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD83 | 12048 bytes |
SHA-256: fc40cd44b79f22ee573c892acc401d61c18d3025247d038c16dc0f359085970e |
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font_02_sfnt_off00010379.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10379 | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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