MALICIOUS
184
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 contains numerous embedded URLs, with at least one pointing to known malicious redirector infrastructure. The document body, though heavily obfuscated, suggests a lure related to university rankings, which is a common tactic for phishing or malware distribution. The presence of multiple links on disposable hosting further supports a malicious purpose.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 5
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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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://yafferge.ru/award?keyword=world+university+ranking+2020+pdf In PDF document text
- http://rabejagoruwobol.66ghz.com/nuovo_cinema_paradiso_sheet_music.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4419642/normal_60017393f287c.pdfIn PDF document text
- http://vukuwupevipe.iblogger.org/12652620054.pdfIn PDF document text
- http://kemavipamu.iblogger.org/42415346481.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4470385/normal_605b0f3579690.pdfIn PDF document text
- http://shtangennstutkupitseychas.xyz/dikemafin2bk7s.pdfIn PDF document text
- http://xazerakovewule.22web.org/vaaste_song_dj_remix.pdfIn PDF document text
- http://badge-verification-center.com/floodplain_management_in_australia_best_practice_guidelinesg995a.pdfIn PDF document text
- http://free-at.pro/5347846377482a6d.pdfIn PDF document text
- http://gododerur.66ghz.com/niwizipidipeju.pdfIn PDF document text
- http://submonster.xyz/dvd_ram_driverf9ozo.pdfIn PDF document text
- http://floradoma.net/don_conrado_sol64jeh.pdfIn PDF document text
- http://sodaapp.club/simplehuman_soap_dispenser_wont_turn_onfgnpr.pdfIn PDF document text
- http://itchia.space/figure_drawing_for_fashion_designs5xq6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413967/normal_60380906b4643.pdfIn PDF document text
- http://finansi-7.online/17376888309ze2cg.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://xifabopopotesa.epizy.com/66963620863.pdfIn PDF document text
- http://vitafunajubala.rf.gd/saucony_everun_guide_10_dames.pdfIn PDF document text
- https://1e8c0764-4a0f-46ab-84a2-5f63a8a44928.filesusr.com/ugd/6a0acf_5a4d31111fc84af9bb74188f7b738760.pdf?index=trueIn PDF document text
- https://bea00909-aa88-4d38-ac88-e56db460b486.filesusr.com/ugd/923104_74dd2a12dd0f48a8bb4262d0ab5844f7.pdf?index=trueIn PDF document text
- https://6dd05bf8-a32e-4ce7-8057-9a1894012cff.filesusr.com/ugd/4ce960_e6074d432a7d4fe686a3c7ad18de444b.pdf?index=trueIn PDF document text
- https://49b7c339-fea6-4bb3-bf7b-ca47af5263df.filesusr.com/ugd/6ca12d_76b10bbc0afc4329bf2e736d6583429b.pdf?index=trueIn PDF document text
- https://63995da9-74be-4895-8497-a4fa53c9845d.filesusr.com/ugd/788c84_9dcf58d1b42541a1a992b83f3c1cc54b.pdf?index=trueIn PDF document text
- http://marivugedada.epizy.com/zilurikuwak.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_off0000ede2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDE2 | 5720 bytes |
SHA-256: 1cd178df7c55dfb56eb9ff263b827003e93288b5871d19446e01c7e5251e3cdc |
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font_01_sfnt_off00010186.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10186 | 10832 bytes |
SHA-256: a6310c334d207169222881d1b6f452a9568af8eeeae664a7982cb98834fe3b1b |
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