MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, many pointing to disposable hosting and employing UTM parameters, indicative of a link farm or SEO manipulation tactic. ClamAV and ML classifiers flagged this PDF as malicious, specifically as a phishing trojan. The presence of embedded URLs and the overall structure strongly suggest an attempt to redirect users to malicious content or phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://archism.ru/pbw?utm_term=ejercicios+resueltos+de+circuitos+rc+rl+y+rlc+pdf PDF link annotation
- https://gazukevofuw.weebly.com/uploads/1/3/4/5/134597640/9f94e373436f.pdfIn PDF document text
- https://posokovezase.weebly.com/uploads/1/3/4/5/134530230/mujofob-fonijad.pdfIn PDF document text
- https://jenititufevi.weebly.com/uploads/1/3/4/5/134595561/2244309.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
- https://uploads.strikinglycdn.com/files/973a1e11-2fd0-4437-8b26-0462bd2ae4f1/a_long_obedience_in_the_same_direction_quote.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7ba61f5f-9043-4c28-ac39-7cd49d88e3c7/33557852852.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/882c0163-bc18-4886-b221-0b5381c9d97f/kezafogirivexokurugan.pdfIn PDF document text
- http://beratirupo.pbworks.com/f/71510967123.pdfIn PDF document text
- http://lopofemusun.pbworks.com/f/41963381683.pdfIn PDF document text
- http://kafunujazuwo.pbworks.com/f/nowek.pdfIn PDF document text
- http://tusawijer.pbworks.com/w/file/fetch/144453810/comer_rezar_amar_frases_equilibrio.pdfIn PDF document text
- http://vimadutukad.pbworks.com/f/58773608981.pdfIn PDF document text
- http://gijorugisaw.pbworks.com/w/file/fetch/144572886/mipimuwuzepaluxove.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/08e39b57-e1a4-4cda-b537-711c5013c692/honeywell_thermostat_th5110d1022_reset.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fae04a2d-911d-4a8a-a4ff-95823d0530d3/mcmurry_qumica_orgnica_9_edicin_espaol.pdfIn PDF document text
- http://rimogeto.pbworks.com/w/file/fetch/144580089/exercicis_complements_verbals_online.pdfIn PDF document text
- http://xojifot.pbworks.com/f/kadasexugaban.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/42194676-a8f9-4f21-bf9f-42f71c326c7f/how_to_invest_in_stock_market_philippines_2020_beginners.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/16bf7554-839c-4b9d-a8d1-f07dbbcdbc2d/que_son_los_quistes_de_blastocystis_hominis_en_nios.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cdad9da9-a4da-41c6-8106-2ed967af4c1e/how_to_get_work_as_a_freelance_editor.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bd5fad25-3e4b-43bd-adf9-545eebcd6329/44467220036.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_off0000efc3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFC3 | 4848 bytes |
SHA-256: 8db62880d9617d6137af831318c46508362f64adcd150073ac66108cc689f7d1 |
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font_01_sfnt_off00010068.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10068 | 12656 bytes |
SHA-256: d9e391a0e08fee6f2cb73d86003fc61c6f0c0e070762efd75e13c0646aff535f |
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font_02_sfnt_off00012999.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12999 | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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