MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many of which are hosted on disposable domains and appear to be part of a link farm. One prominent URL, 'https://nipisod.ru/strik?utm_term=hp+deskjet+ink+advantage+2545+drivers+download+link', is presented as a download link for printer drivers, likely a lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9988
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://nipisod.ru/strik?utm_term=hp+deskjet+ink+advantage+2545+drivers+download+link PDF link annotation
- https://s3.amazonaws.com/xilasisefi/milan_italy_map.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4478687/normal_604b081c5b5ac.pdfIn PDF document text
- https://s3.amazonaws.com/kesumasaka/evaluation_form_template_for_group_work.pdfIn PDF document text
- https://cdn.sqhk.co/pinofizulag/igdhjjb/sports_trading_card_photoshop_template.pdfIn PDF document text
- https://s3.amazonaws.com/tobovunoberiki/scikit_learn_is_a_machine_learning_python_package._true_false.pdfIn PDF document text
- https://cdn.sqhk.co/suwuwewazaka/diiqhbZ/87769019165.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4447096/normal_5fee1f4795a11.pdfIn PDF document text
- https://s3.amazonaws.com/dobesogum/the_revenant_movie_awards.pdfIn PDF document text
- https://cdn.sqhk.co/sotisajen/cKKjggS/coda_definition_music.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4469351/normal_606e849e600ea.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4458849/normal_5fc7d8ef37e0c.pdfIn PDF document text
- https://cdn.sqhk.co/xenivoronizu/mwhdhi7/mojewegogirojasova.pdfIn PDF document text
- https://cdn.sqhk.co/bozogekeji/r1iczJY/rules_of_survival_apk_data_2020.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4496580/normal_603c19bf1f866.pdfIn PDF document text
- https://cdn.sqhk.co/gogerazina/Fh9Mhez/royal_enfield_himalayan_brochure.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381759/normal_60445d54ebd5e.pdfIn PDF document text
- https://cdn.sqhk.co/ludukuni/Vaahdal/the_best_pick_up_truck_uk.pdfIn PDF document text
- https://cdn.sqhk.co/buganixezu/hdOCchg/english_ttf_fonts_free_for_android.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4486987/normal_602593a323df9.pdfIn PDF document text
- https://s3.amazonaws.com/kagedatabujo/xesaseretuduxagukotem.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://1d942ef5-affb-47d8-8f99-70a3d187b733.filesusr.com/ugd/3283b0_10967fa31a504f2998668d46347371bb.pdf?index=trueIn PDF document text
- https://828c6a01-da61-4814-986a-f72e64f4f334.filesusr.com/ugd/cdfdba_bb749e9860364129a47b1592637608c7.pdf?index=trueIn PDF document text
- https://1eb42bdc-3da6-4b32-b75f-4382f1721f8e.filesusr.com/ugd/35474d_b389101809ee48b1b09930c22d46c65d.pdf?index=trueIn PDF document text
- https://737c154f-ca75-4484-807d-9d5c19d76377.filesusr.com/ugd/7e84b7_6e21a28e05414896b4d68c0754aa97c8.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000102f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102F6 | 1684 bytes |
SHA-256: c47328b99d1a8106722297ddf3976446a0c29354b3be907203f77db8ad888c37 |
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font_01_sfnt_off00010b5b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B5B | 5724 bytes |
SHA-256: f023aac12fc74ba05be4264010bdc36e9288cffd17b28276cb2b0201bfc45c59 |
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font_02_sfnt_off00011f11.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F11 | 11036 bytes |
SHA-256: 43ad2a7d028b988dd0964dc7cc5ddc5e68a1a0da27d2e74eba25306b421fd773 |
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