MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to potentially malicious or phishing sites. The presence of embedded URLs and the overall structure point towards a phishing or content-luring attack pattern.
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://zajinet.ru/123?utm_term=beat+maker+go+mod PDF link annotation
- https://cdn-cms.f-static.net/uploads/4402953/normal_5fdb2304225dd.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4388612/normal_602af3a037017.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4414679/normal_5fe360bf1b53c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485156/normal_6036c87d8d133.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4373782/normal_60098cafb4abc.pdfIn PDF document text
- https://s3.amazonaws.com/bejenosugede/free_invitation_templates_thanksgiving.pdfIn PDF document text
- https://s3.amazonaws.com/gomaxod/full_marks_guide_class_8_science_online.pdfIn PDF document text
- https://s3.amazonaws.com/bifadiwuwileji/zepufexufijemit.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4451744/normal_5fdfa58309108.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387938/normal_601ee252c99c0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4415951/normal_602f516a8a996.pdfIn PDF document text
- https://s3.amazonaws.com/sezewu/arroba_definicion_informatica.pdfIn PDF document text
- https://s3.amazonaws.com/matogapibelifiv/31916885548.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://5e54824a-8208-41b0-8aeb-7c017e8cfb46.filesusr.com/ugd/f64db8_6896e2015408412b8f4eccb9c76a0206.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/13d4ba2b-7b70-4ee6-afc9-7243cb18df8b/rimitokijelemafatedal.pdfIn PDF document text
- https://e22e8d81-f41f-4d51-abb1-39b19d2d32bb.filesusr.com/ugd/96bf9d_2260ec7e096545f18e1727339f72f638.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/1fe5a89b-92f3-4035-bfa1-d34a4f3d212c/3_digit_subtraction_with_borrowing_worksheets_2nd_grade.pdfIn PDF document text
- https://a3c35cc3-4a3f-4d41-ab51-8b3e4b114d30.filesusr.com/ugd/2b25b5_af30141cbc07459186b6c44f0ee3b6ea.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/ab71a09d-7c87-4dba-8fbb-be8e5341bf5e/what_does_an_operations_manager_do_in_a_business.pdfIn PDF document text
- https://98748e4b-3258-471a-903e-8ea98415cca0.filesusr.com/ugd/fd7405_14315b5e1b444ff8b4771fbc98aff380.pdf?index=trueIn PDF document text
- https://850a36a1-966c-46c3-86ed-e15bcb5778a7.filesusr.com/ugd/ede58b_ffe186f2719f41b8abb951a7fc599fa1.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_off0000f18f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF18F | 5048 bytes |
SHA-256: ceb68bca07feb29f8cb20a44dac33431c32eb7e69353fe9eb404a620914a0dbc |
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font_01_sfnt_off000102aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102AA | 11160 bytes |
SHA-256: ebcdeb31e831d9f5fc2350c5785fbd344ad7eb88aab48041e40ec3123135f75c |
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