MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by ML classifiers and ClamAV. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm designed to redirect users to potentially harmful content. The primary malicious activity observed is the embedding of numerous external URLs, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://lozipotod.ru/strik?utm_term=twas+the+night+before+christmas+2020+covid+poem PDF link annotation
- http://kopalirigel.mypressonline.com/how_to_address_a_letter_of_recommendation_for_medical_school.pdfIn PDF document text
- https://cdn.sqhk.co/wezupobuwab/ibifiix/91111912013.pdfIn PDF document text
- https://rupogasonewu.weebly.com/uploads/1/3/4/6/134653860/7104b9dc72a4a.pdfIn PDF document text
- http://betijeduw.getenjoyment.net/31471341859.pdfIn PDF document text
- https://weraxugunelega.weebly.com/uploads/1/3/4/7/134719696/7091442.pdfIn PDF document text
- http://vaxiliwu.medianewsonline.com/what_is_another_term_for_informal_language.pdfIn PDF document text
- https://cdn.sqhk.co/wepugozotap/hhfhg2Y/list_of_norse_gods_and_goddesses.pdfIn PDF document text
- https://cdn.sqhk.co/bosejadukifo/sjbdy1b/75058846486.pdfIn PDF document text
- http://xidufefonudug.sportsontheweb.net/why_dogs_hide_their_toys.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://6648aa49-deb3-4d6f-81a8-a63cc7a297fb.filesusr.com/ugd/38eac1_72cddb0c86014eb0a66853ac691c9733.pdf?index=trueIn PDF document text
- https://99442e0c-e188-470f-b1e9-a2082f9e7f28.filesusr.com/ugd/2274a7_5794eb30f3b44eb594345451e66ec128.pdf?index=trueIn PDF document text
- https://f238abdf-92e3-4651-90df-65b6e8a648d9.filesusr.com/ugd/99965f_34e460aff26245efbcf2754d38862817.pdf?index=trueIn PDF document text
- https://4868a29a-6d77-448d-a9c5-bc5c6a1713c3.filesusr.com/ugd/060e50_eec722788ef540ab9b74d334b78e5efc.pdf?index=trueIn PDF document text
- https://9de673a2-3b8e-40eb-bbf5-c0ad8e71a3da.filesusr.com/ugd/bd5c68_e85d93d5c466443386ed53b9783be83b.pdf?index=trueIn PDF document text
- https://856cb5e6-6c81-45ce-9604-b57907a15cd2.filesusr.com/ugd/cc3ca9_d1b4368666de4b19a50709794d68fe36.pdf?index=trueIn PDF document text
- https://fdb0147f-387d-4908-9c93-1ccdb5bf775f.filesusr.com/ugd/aea2e0_063fa64aedf243d5a1b01b7859b67a7e.pdf?index=trueIn PDF document text
- https://0d555108-1732-4721-8d72-76d747b2053a.filesusr.com/ugd/1b0481_7f20cfb9d1664470a16c6b997a3f458e.pdf?index=trueIn PDF document text
- https://7e8267f5-6380-480e-ad72-df526eaefc07.filesusr.com/ugd/cbe325_b630579a8ce24387918c5b2f2134433a.pdf?index=trueIn PDF document text
- https://2d130471-2a64-48ba-87cf-8f1e86c6acad.filesusr.com/ugd/9c43ec_a215d9b1c3fd4a87a58a757a74888ae3.pdf?index=trueIn PDF document text
- https://1a6c606f-1efd-495f-9370-57f425d809fd.filesusr.com/ugd/1be480_75ed05fd9116429b86010a28b77093b9.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_off0000f136.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF136 | 6052 bytes |
SHA-256: e243ae0871f6d4ffd65664206af529872501fe99705a0c4ddfc29c777e1f8f85 |
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font_01_sfnt_off000105ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105BA | 10776 bytes |
SHA-256: f4ab76f1e5ce97960ca62839c108cd172b1c1af2187ca0334accadeea82d7a38 |
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