MALICIOUS
186
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. 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 0.9997
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://midufefew.ru/123?utm_term=mass+moment+of+inertia+pdf+nptel PDF link annotation
- https://cdn.sqhk.co/xutazazo/jgJqge3/randal_s_monday_mod_apk.pdfIn PDF document text
- https://cdn.sqhk.co/fukafodifi/ehgjdge/noziwafugugiponatixow.pdfIn PDF document text
- http://jenuxijaf.mygamesonline.org/74038465627.pdfIn PDF document text
- https://cdn.sqhk.co/guzamuvi/0RhPhdE/bukawirarakepubew.pdfIn PDF document text
- https://cdn.sqhk.co/kixarozikej/gchepNP/81307532825.pdfIn PDF document text
- https://cdn.sqhk.co/kaxonavi/Qehhuih/gezakufow.pdfIn PDF document text
- http://gosunenibunale.getenjoyment.net/reliability_theory.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://790985df-dfec-4a08-b509-00f37668cf87.filesusr.com/ugd/a421e3_fbe87713cc6041558ff14c1d85ac88dd.pdf?index=trueIn PDF document text
- https://bdc3fad0-85dd-4e34-85f7-620d54d4ff6f.filesusr.com/ugd/10cedf_a1b81b04defc428aae4fe87fd2449385.pdf?index=trueIn PDF document text
- http://merovuditipin.onlinewebshop.net/abhorsen_garth_nix.pdfIn PDF document text
- https://24218389-b518-4ca3-8548-65eaf758daa4.filesusr.com/ugd/c836c3_4196178afadc4929800f8bcb7282c493.pdf?index=trueIn PDF document text
- https://e26dc784-fa46-4601-9f6d-57686faaf216.filesusr.com/ugd/c66525_45a06b82e8e04b10ba570e8f70a205fc.pdf?index=trueIn PDF document text
- https://2e03c77f-99cc-4591-9807-54d8d49c9ce6.filesusr.com/ugd/759733_46879c7a03a24caea7678eff91dfd198.pdf?index=trueIn PDF document text
- https://73c25812-7308-4b32-b985-10e2a25710ca.filesusr.com/ugd/5b604d_4c99218e1ad54cb3a02182c551387deb.pdf?index=trueIn PDF document text
- https://f579be4a-c2ec-451d-94ee-532237c06880.filesusr.com/ugd/9f6a24_837503436c8342feb3bb8e326389c973.pdf?index=trueIn PDF document text
- https://2987c0f4-171e-4473-b3f1-a5468658115b.filesusr.com/ugd/75ff8a_a55fdd3fad0f451f8581358da7b12bbf.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/8d719e70-07ca-49e2-9b70-6747abc33434/learn_autocad_online_youtube.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c46e3e66-d47c-4b80-aed1-5d268c677659/vogoribawareda.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/35f963dc-a717-454f-bd95-77b3f8901add/17693761333.pdfIn PDF document text
- https://84d655c4-d84a-4a0c-9c32-0387925bd622.filesusr.com/ugd/6233da_cd2d7144e4814301ab433e1f52ece0ae.pdf?index=trueIn PDF document text
- https://2b81f3f0-3f46-42ff-87a7-5865dd96cd3c.filesusr.com/ugd/fb41f9_b3222d78e6834c28a2ee38efd213d86f.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/70a49a18-13c2-4e4a-8a9d-8f59a9d0495a/tabikowanibijanolo.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_off0000fa79.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA79 | 5192 bytes |
SHA-256: b3b61aa2844fe48179d5f7a875c1d6d897cbe14fe9437f980b9ac06329047aac |
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font_01_sfnt_off00010c17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C17 | 11008 bytes |
SHA-256: baf58f109a9f03ffdc0f2d65200000ca7b95c87f6d87edb1289b37b96218ef64 |
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