MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected 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 used for distributing malicious content or phishing. The document body, though heavily obfuscated, appears to be a lure related to Kindle Paperwhite settings, directing users to external URLs like https://smidgel.ru/pbw. No scripts were extracted, but the overall structure and heuristic firings point to a phishing or malware distribution campaign.
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://smidgel.ru/pbw?utm_term=how+to+access+settings+on+kindle+paperwhite PDF link annotation
- https://wegoboxup.weebly.com/uploads/1/3/4/7/134772399/bitasuze_kakedozasikex_texurem.pdfIn PDF document text
- https://dezekebewefe.weebly.com/uploads/1/3/4/7/134731304/kuwonuxok_texisodema_vejemas_kegonaluzez.pdfIn PDF document text
- https://nipibodofabujid.weebly.com/uploads/1/3/4/2/134265940/12a0c.pdfIn PDF document text
- https://wejigawavopon.weebly.com/uploads/1/3/4/3/134305277/6922414.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465255/normal_606e2555bd501.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383806/normal_6032a0149a7e4.pdfIn PDF document text
- https://jazuwexakabe.weebly.com/uploads/1/3/2/3/132302764/bobipamut-gotiresokufuk.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4497109/normal_602bf84cb3f7a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4473410/normal_601aaa4b5c908.pdfIn PDF document text
- https://fuzaterolipi.weebly.com/uploads/1/3/1/4/131438829/352059.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4419225/normal_605a66c11fd7a.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4373008/normal_5fc860eace322.pdfIn PDF document text
- https://xuduburuk.weebly.com/uploads/1/3/4/3/134323667/4405344.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417119/normal_60549dfab7149.pdfIn PDF document text
- https://xuzekivaf.weebly.com/uploads/1/3/1/4/131453918/kunewavoxo_juritaxugot_juluv_wafaganatododiw.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/4c98c85e-92f0-4ee7-a376-409bb65f4f4a/kuponazi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1d609393-671d-4c67-818a-577ee784d149/3681209739.pdfIn PDF document text
- http://xelivolofuso.pbworks.com/w/file/fetch/144791916/armoured_cable_gland_size_chart.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d6e8679f-fade-4707-9c25-ecd46f61a164/51468746412.pdfIn PDF document text
- http://dukujaxosap.pbworks.com/w/file/fetch/144827091/45377040890.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8676024c-3ab5-41a3-9cbc-551296324d56/what_order_to_read_warhammer_40k.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e370.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE370 | 5452 bytes |
SHA-256: f1b1254cad6639b3af59313d7a1323d335c3e1f456311d86fb1a4103fdb9f24c |
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font_01_sfnt_off0000f608.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF608 | 10128 bytes |
SHA-256: d144ef85896f7b9bf6fa894d6b9e91b520af2c039f1384fb42c0f2c381a58a5d |
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