MALICIOUS
226
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, presenting numerous external links, many of which point to disposable hosting or domains associated with phishing. The presence of a 'password-protected archive handoff' heuristic suggests a common tactic to bypass gateway scanning by encrypting a payload, which is then intended to be decrypted by the user. No scripts were extracted, but the overall structure and URL distribution strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://mezovuduw.ru/award?keyword=baixar+livro+temperamentos+transformados+pdf PDF link annotation
- https://cdn.sqhk.co/puzadowoke/jbiQphj/gukipojosizikusole.pdfIn PDF document text
- https://cdn.sqhk.co/kosifodalab/ghdsmLY/electric_heater_energy_cost_calculator.pdfIn PDF document text
- https://lapidarofo.weebly.com/uploads/1/3/0/8/130874394/ladepesugaw.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4369794/normal_6001487f1fd4c.pdfIn PDF document text
- http://zonokiwuwagupu.getenjoyment.net/acer_aspire_e5-571g_battery.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380213/normal_6015eafda2578.pdfIn PDF document text
- https://cdn.sqhk.co/kukabelek/hahjehg/download_warlings_armageddon_mod_apk_android_1.pdfIn PDF document text
- https://cdn.sqhk.co/sevigexew/gd1jceI/83051231513.pdfIn PDF document text
- https://cdn.sqhk.co/reparepoki/3hnOgjf/marketing_jobs_near_me_full_time.pdfIn PDF document text
- https://zogewuvenofo.weebly.com/uploads/1/3/2/6/132683334/towubatapa.pdfIn PDF document text
- https://gidorimafemona.weebly.com/uploads/1/3/4/8/134867851/gasixu.pdfIn PDF document text
- https://cdn.sqhk.co/tujuvemevo/xhhjehe/48423036590.pdfIn PDF document text
- https://cdn.sqhk.co/pazaxefuma/f94YDjh/leregevinaded.pdfIn PDF document text
- https://cdn.sqhk.co/gunumiku/Uc45jbP/volafewufifejumokekuraj.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://73e8eba8-f08a-4c12-987a-519a82e171c2.filesusr.com/ugd/19159f_7f4c50d98f2847189f33e28157895a07.pdf?index=trueIn PDF document text
- https://502e425a-54a0-4661-a3e6-c6e116bdb13d.filesusr.com/ugd/10da26_8daef71125354c9e94371e071513c156.pdf?index=trueIn PDF document text
- http://sanojepenot.onlinewebshop.net/brown_bear_what_do_you_see_book.pdfIn PDF document text
- https://cd9ed9ec-87d1-42be-9198-0b2de6c1db4d.filesusr.com/ugd/158fb9_18cb94822ff84f5a9e4540fff415b245.pdf?index=trueIn PDF document text
- https://ecf8b3bd-8201-449f-a39c-156acd88681e.filesusr.com/ugd/97634b_40971955d0ba4d99ba1cad1cefd218d1.pdf?index=trueIn PDF document text
- https://d926c97b-7f3b-4ec8-a52a-318bcb589338.filesusr.com/ugd/120f26_3417a08f8f584ab887f08c284fed4ba7.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e781.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE781 | 5364 bytes |
SHA-256: 5dfb982921f4c0bf4c6a56f697183576469a449d8553af75db424cd1c95e12d4 |
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font_01_sfnt_off0000f9b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9B5 | 13656 bytes |
SHA-256: 5a2549187c86daa4d044a3fb66ff73ee7907588cb43e20b903c446fee993120d |
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