MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains numerous embedded links, with a critical heuristic firing for PDF_SEO_LINK_FARM indicating a link farm designed for SEO manipulation. One of these links redirects to a known malicious URL, suggesting the document is part of a phishing or malware distribution campaign. The ML classifier and ClamAV detection further support the malicious nature of the file.
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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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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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://yafferge.ru/award?keyword=caterpillar+3516b+parts+manual+pdf In PDF document text
- https://cdn.sqhk.co/fosulavale/bDXW5ha/36002328149.pdfIn PDF document text
- http://kirudikegopoded.sportsontheweb.net/98109390647.pdfIn PDF document text
- http://fafijitesulexiz.mygamesonline.org/snake_air_force_1_custom_sneaker_shoes.pdfIn PDF document text
- https://cdn.sqhk.co/xotakuzazuf/jgumjhF/smith_s_marketplace_pharmacy_logan_utah.pdfIn PDF document text
- https://cdn.sqhk.co/ranemagesoga/eIzSdGV/torubodopabidiru.pdfIn PDF document text
- https://cdn.sqhk.co/sadetujadufi/Wjet1dS/yamaha_clavinova_clp_645_manual.pdfIn PDF document text
- https://cdn.sqhk.co/wadusazilox/AcYhgA5/battle_brothers_archers_armor.pdfIn PDF document text
- https://cdn.sqhk.co/lofakekaf/gijkuOh/power_music_electric_revival.pdfIn PDF document text
- https://cdn.sqhk.co/dajebala/hbZFlqa/1504066850.pdfIn PDF document text
- https://cdn.sqhk.co/xekawiba/hdR2D6b/60604617780.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://1c514d3f-4aca-4c14-a2cc-94ef866bc6c7.filesusr.com/ugd/860217_4e3567e474854dd398a0424e44e5075e.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/sezewu/49273887015.pdfIn PDF document text
- https://1b6fe947-be7e-4494-9a94-f566f178d3d1.filesusr.com/ugd/89064d_b250eb13e60a42dfa691663388016d96.pdf?index=trueIn PDF document text
- https://11627308-8c8f-4f08-99ed-0ad85160907d.filesusr.com/ugd/682d1c_53b84909e6b1490da3d3d4d645e7f767.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/vukusa/jiwixonelevaxofe.pdfIn PDF document text
- https://d17f4099-ecc1-42b1-9c73-51521793457c.filesusr.com/ugd/4a2613_b0f5447e68b341bd87226305d4b81d59.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/wewuxuviwar/houses_of_parliament_guided_tours_london.pdfIn PDF document text
- https://f421159b-d329-41e8-bc42-072bc93e4c50.filesusr.com/ugd/65d6f7_0654ac30c114489ebfa210a30f4be97c.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_off0001304f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1304F | 5728 bytes |
SHA-256: faa56bd68bc5efc2a4ed154e46b006bb89b402c716b2657b81f8bf3b23ca6a5a |
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font_01_sfnt_off000143ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x143AC | 13448 bytes |
SHA-256: b5d9372c1f91e2d70535f7a910e6269e5fc327ac4a7a4feb8718a6e81779cfcf |
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