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 0.9996
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://golowaki.ru/award?keyword=cellular+and+humoral+immunity+pdf PDF link annotation
- https://cdn.sqhk.co/roratumopiv/jjiheFK/wuzulivamabegi.pdfIn PDF document text
- https://cdn.sqhk.co/radojiga/gymG2We/88276974332.pdfIn PDF document text
- http://komaxinatobofe.medianewsonline.com/data_center_manager_jobs_in_canada.pdfIn PDF document text
- http://pobadabodoz.scienceontheweb.net/cellules_eucaryotes_et_procaryotes.pdfIn PDF document text
- http://widonatozeg.mypressonline.com/bagadejobowagelakabuvegar.pdfIn PDF document text
- https://cdn.sqhk.co/zufutetuwume/iaZ4Gib/65258435026.pdfIn PDF document text
- https://cdn.sqhk.co/vagekoxes/S9Uihge/mobile_data_turns_off_by_itself_android.pdfIn PDF document text
- https://mivewuwadomabat.weebly.com/uploads/1/3/1/6/131606259/b84f4dba7998.pdfIn PDF document text
- https://cdn.sqhk.co/wujakegu/ZHigjah/vesolowade.pdfIn PDF document text
- https://cdn.sqhk.co/zimopiroxab/hbWgfhd/avengers_4_endgame_full_movie.pdfIn PDF document text
- https://cdn.sqhk.co/votojuxosaf/jHjchb4/vuladolukiweniloxu.pdfIn PDF document text
- https://cdn.sqhk.co/wimedizi/7xtgeie/crazy_racing_for_mobile_java.pdfIn PDF document text
- https://pufoxedoj.weebly.com/uploads/1/3/4/4/134438994/8547373.pdfIn PDF document text
- http://mukuwasoveta.sportsontheweb.net/maxap.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://najukelosuned.myartsonline.com/99320060271.pdfIn PDF document text
- https://88966db1-4a83-4446-b941-f65022a6235f.filesusr.com/ugd/928e0f_820d66aa80794f8a988bcc5ce00bb197.pdf?index=trueIn PDF document text
- http://juvusowupu.onlinewebshop.net/codeword_barbelon.pdfIn PDF document text
- https://a179b4bb-f9e1-4b0b-8685-f881d2afde68.filesusr.com/ugd/0fdb6d_9352eb58816347bcb72d5b97399d67e9.pdf?index=trueIn PDF document text
- http://tevefetilojas.atwebpages.com/ashish_arora_physics_book.pdfIn PDF document text
- https://e1318bff-d970-45e2-bcea-45481503a18b.filesusr.com/ugd/75a96d_395d22731b7a4dc5a74382279dc6369b.pdf?index=trueIn PDF document text
- http://dopovis.myartsonline.com/antibody_drug_conjugate_adc_clinical_pipeline_a_review.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_off0000ec78.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC78 | 5112 bytes |
SHA-256: 35d9b711684fc61fd0daa93918f3ed3b9b6f4e3249f5d604dad5ca38c74553a9 |
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font_01_sfnt_off0000fdb6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDB6 | 10624 bytes |
SHA-256: c342bd382782d12fac987295a1dc5c20064c46bad4c57d0aeccef84ee8d1536f |
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