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 hosted on disposable domains, indicative of a link farm or phishing operation. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a malicious document, likely delivered as a spearphishing attachment, aiming to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://kuzutuzo.ru/strik?utm_term=how+to+use+waveform PDF link annotation
- https://basurujilitafap.weebly.com/uploads/1/3/4/5/134595952/2598752.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4405904/normal_60373eba20a95.pdfIn PDF document text
- http://ourfanz.com/what_is_an_example_of_static_equilibrium_in_everyday_lifer1qtc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384633/normal_5fea2efd48093.pdfIn PDF document text
- http://phtech.site/bapelifukonojinepunaduso6164u.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4447431/normal_60142e2cdec47.pdfIn PDF document text
- http://justamorem.com/zutoveb02zq9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450639/normal_600d96ab7ce4c.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4494139/normal_5fde2d8077711.pdfIn PDF document text
- https://mizugoveram.weebly.com/uploads/1/3/3/9/133986338/linero.pdfIn PDF document text
- https://xakediripikevul.weebly.com/uploads/1/3/4/3/134338645/2144750.pdfIn PDF document text
- http://topfrag.rip/fonekoxaruzasilefajutamsuqh.pdfIn PDF document text
- http://wadupobem.iblogger.org/taxibizexirisusixowij.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- http://fepavipa.epizy.com/reglage_carburateur_scooter_2_temps.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4d963d4c-00b6-4bcd-b8c9-4d670e07a815/how_to_reset_kenmore_dishwasher_model_587.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/63c9d150-6b94-4920-a70e-afd95868caa1/as_a_man_thinketh_so_is_he_nlt.pdfIn PDF document text
- http://xupafokivudaked.rf.gd/bediguxageji.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/44cce7c1-1e7b-4860-add1-e38dfc445ffa/how_to_cure_dogs_mange_at_home.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b625b7f4-09c8-4a73-b48a-1fa397cae304/how_to_get_a_tight_knot_out_of_string.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2cbfcbd5-743b-4174-b059-589c8dc1154f/how_to_the_radius_of_a_circle.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d11f640b-cddc-478f-af29-e0443dce4914/rigafumuramemogujorujeru.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001030e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1030E | 4724 bytes |
SHA-256: 0499c6b0191b66b8526395c2219fe91b4c2282b90105aacf40332f82585bea5b |
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font_01_sfnt_off0001132c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1132C | 10968 bytes |
SHA-256: e3a91d486e99c31d7b08956a9fb5d03bb3a621999aefc3f0c551fd0fe11ab0e0 |
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font_02_sfnt_off00013868.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13868 | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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