MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://mezovuduw.ru/award?keyword=resuscitation+guidelines+uk+pdf PDF link annotation
- http://gisomog.iblogger.org/how_to_count_points_in_500_rummy.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://add83a7c-0e31-48b3-928b-061d82ba9144.filesusr.com/ugd/205ae4_62b1c26c1e1e44eea9a84158431fa0f4.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/e30a1160-cb85-4a6d-aad4-36d123ddb038/life_without_limits_indonesia.pdfIn PDF document text
- https://b133b025-67d1-4190-9e53-fbb99503dec2.filesusr.com/ugd/caf13f_74496c864e8942809de27cb480540d35.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/7105489e-dd96-4558-8dc6-a3c8aaf67710/who_makes_country_comfort_wood_stoves.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/43194819-2ab5-4b76-92f3-1a2ceba940d1/33835090682.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/60352ded-f613-4e50-9df4-13ab1956f04f/2003_dt466e_valve_adjustment.pdfIn PDF document text
- https://5ce19dfa-329f-495d-88d1-e1e7834d9072.filesusr.com/ugd/d902bb_da5455c373b342f29c0947c4f8decde9.pdf?index=trueIn PDF document text
- https://0dd4521b-3e41-4083-9bcc-807cce03ae78.filesusr.com/ugd/cfe2e9_47375e55b3a94e3ab8981b81b211c2d5.pdf?index=trueIn PDF document text
- https://e028ba52-6c86-493e-86b7-fecf7cd1c3eb.filesusr.com/ugd/bcb9fd_8bc4316e910941a19d5f9a31b32fa5a1.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/06365d4a-6e26-4c2d-88ba-df893cef4c86/wd_my_cloud_support_phone_number_uk.pdfIn PDF document text
- http://befojarariwowab.epizy.com/technical_writing_tips.pdfIn PDF document text
- https://add83a7c-0e31-48b3-928b-061d82ba9144.filesusr.com/ugd/205ae4_fd559810dcb44f9f898d735d4200f4c5.pdf?index=trueIn PDF document text
- https://4ef57e19-9a2e-4e6f-a444-f6b59f982a39.filesusr.com/ugd/4c1554_665cbf2bbf754adea5a9eeb98adb508b.pdf?index=trueIn PDF document text
- http://poxoner.rf.gd/43969320111.pdfIn PDF document text
- http://gexijobuvakoxob.rf.gd/82120083003.pdfIn PDF document text
- https://b3dfd9c9-1030-471f-a26d-814ea73dbccc.filesusr.com/ugd/d97afa_0f72eb95e1b644a89e908f1450b3924f.pdf?index=trueIn PDF document text
- http://sasebuza.epizy.com/how_to_set_up_the_stealth_cam.pdfIn PDF document text
- https://18cb0a1d-3822-48a5-9ca0-56465202bc9b.filesusr.com/ugd/96564c_72f9c026e620485f8b8c580b23c86e9e.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_off0000f6e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6E7 | 5296 bytes |
SHA-256: cbf08f07a6fb9e6087370a2d50234a59c5c78e205d746b93aebdd2f5b7ace3de |
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font_01_sfnt_off0001090d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1090D | 12204 bytes |
SHA-256: 66bbcafa67ba4c93a3431936b15d8689d1ea7a51608c814306e76019b26c0d34 |
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