MALICIOUS
252
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, many pointing to disposable hosting and redirectors, indicating a link farm or SEO poisoning campaign. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and the presence of URLs like 'traffking.ru' strongly suggest redirection to malicious content. The ML classifier also flagged this PDF with high confidence, aligning with the ClamAV detection of 'Pdf.Phishing.Trojan'. The document body, though heavily obfuscated, contains text related to 'chemical equations worksheet ks3', likely a lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 7
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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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://traffking.ru/aws?utm_term=chemical+equations+worksheet+ks3 In PDF document text
- https://gejatovuri.weebly.com/uploads/1/3/1/4/131406669/piveso-telurim-sumexapevagek.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371787/normal_5f95e312c3925.pdfIn PDF document text
- https://lekekupoj.weebly.com/uploads/1/3/4/5/134513515/limotivamava.pdfIn PDF document text
- https://rabexowubomisuw.weebly.com/uploads/1/3/1/4/131407155/6730531.pdfIn PDF document text
- https://gokopawe.weebly.com/uploads/1/3/4/4/134493337/b94e1a.pdfIn PDF document text
- https://labisafedowep.weebly.com/uploads/1/3/4/7/134722654/mawog-vofigelidefawi-wimavegim.pdfIn PDF document text
- https://sowameneritela.weebly.com/uploads/1/3/0/7/130775755/vigala_kasixibexeg_nipor.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/4b2130ea-565f-4574-81d7-ccbee79a153d/ramudeneleperizotalobibur.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b1f76ca2-0b06-401f-bab4-2f43fb45a9ca/52036701354.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c908cd3e-fd27-48a3-8adb-57da58d6690c/biology_chapter_12_section_1_assessment_answers.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1735e333-2276-4228-9e64-93999f9ff38e/baxenubalux.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/447b4cfa-3401-47e0-bbf0-1ac761ede871/71464672439.pdfIn PDF document text
- https://s3.amazonaws.com/tosasugokod/ams_2020_meeting.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/20eb308c-eb7e-45fd-a2a1-8e43a0d6da49/judge_judy_download_episode.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_off0000bd2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD2F | 5392 bytes |
SHA-256: ad0318afba051e33808775a4f58eed876dfc971eac893d161c6d085ba3b55c45 |
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font_01_sfnt_off0000cf63.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF63 | 1552 bytes |
SHA-256: 1a7f5f78b70f87c8c445655e3203414d5b72576ee703b7266533f1cd7478b213 |
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font_02_sfnt_off0000d767.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD767 | 11032 bytes |
SHA-256: 54eba8a5f55cb2ef347c219e024dc779b5952a0766ff9d98ccc6631e659ddbf2 |
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