MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses an invoice-themed lure. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
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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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://pelibifir.ru/strik?utm_term=printable+log+log+graph+paper+pdf PDF link annotation
- http://ruguwafe.scienceontheweb.net/best_speech_on_covid_19.pdfIn PDF document text
- https://cdn.sqhk.co/lisakopew/jbSbjex/splash_lagoon_nearby_hotels.pdfIn PDF document text
- https://cdn.sqhk.co/jeporikate/cC19tgd/games_online_unblocked_66.pdfIn PDF document text
- https://cdn.sqhk.co/dadirowuj/FQQgi43/golf_chipping_hitting_behind_ball.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4368504/normal_5fcc51c4ea1dd.pdfIn PDF document text
- https://cdn.sqhk.co/rolileduvof/8RxghNn/nimoneraxigef.pdfIn PDF document text
- http://nokilibetajew.mywebcommunity.org/ejercicios_aumentativos_y_diminutivos_5_primaria.pdfIn PDF document text
- https://cdn.sqhk.co/nezusoxe/ifrAjii/asanas_de_yoga_definition.pdfIn PDF document text
- https://nusoselif.weebly.com/uploads/1/3/4/4/134470887/domesumodibekuxon.pdfIn PDF document text
- https://cdn.sqhk.co/pigajifaw/mhfgeX0/20193955161.pdfIn PDF document text
- http://boforobevuziko.mywebcommunity.org/antigone_jean_anouilh_deutsch.pdfIn PDF document text
- https://cdn.sqhk.co/kavuweduti/iaoih5Q/2978433547.pdfIn PDF document text
- https://cdn.sqhk.co/kagelemovo/gfjjvic/ordinal_data_level.pdfIn PDF document text
- http://tamogulaganero.scienceontheweb.net/asidosis_metabolik.pdfIn PDF document text
- https://wedufejaf.weebly.com/uploads/1/3/4/0/134018106/bawuvurimuvemolib.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393179/normal_605208c823e11.pdfIn PDF document text
- https://seritixatot.weebly.com/uploads/1/3/1/0/131070849/5412112.pdfIn PDF document text
- https://ligapixoxos.weebly.com/uploads/1/3/4/3/134378271/vofalasonele_daboxasiwu.pdfIn PDF document text
- http://luwogexejel.getenjoyment.net/lutoweb.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://ac402fee-74f4-49a6-b5a4-6a03c6a057de.filesusr.com/ugd/b0cd75_43dcb83424a94b419b26891b2ee7e0a7.pdf?index=trueIn PDF document text
- https://57933e30-1e86-4cbe-ad2b-777cb72f9932.filesusr.com/ugd/235f1a_c7469ec52f7c41129979386666c44843.pdf?index=trueIn PDF document text
- https://b84c3727-5d5a-4c5d-9d5d-21cac87b3a69.filesusr.com/ugd/fdd6c2_b3157b1a0b7d4f2ea1c8b97773f0b74a.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00014668.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14668 | 6156 bytes |
SHA-256: 6f390cc0a9c05c3c7cbdf67276cc8adad9ca276b822d49c6687efdca3734a8e4 |
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font_01_sfnt_off00015b76.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15B76 | 5264 bytes |
SHA-256: ef5b24dff5b6989df1108c365daa7c6cbd3ac866d0841d1c34673d681230a048 |
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font_02_sfnt_off00016d47.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16D47 | 2140 bytes |
SHA-256: a1c68180eae955d710b1f59d89b7b5bb1f22246194deffa7b9c3298859733f9b |
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font_03_sfnt_off0001771f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1771F | 12224 bytes |
SHA-256: 3d55d3a87844fdb68a80db183129bb9b68832ff4313668d5ebfc58fe21e76e0d |
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