MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple critical heuristics as malicious, including a redirector link and a link farm on disposable hosting. The embedded URLs, such as 'https://crophysi.ru/award?keyword=assessment+evaluation+in+higher+education+pdf', are designed to lure victims to potentially malicious sites. The ML classifier and ClamAV detection further support the malicious classification, indicating a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9967
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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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 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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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://crophysi.ru/award?keyword=assessment+evaluation+in+higher+education+pdf In PDF document text
- http://rogofede.22web.org/majirusowi.pdfIn PDF document text
- http://pepufur.22web.org/imodstyle_remove_scar_guide.pdfIn PDF document text
- http://nepatokada.mypressonline.com/97173215195.pdfIn PDF document text
- http://mivifukatovaga.getenjoyment.net/sea_fishing_rigs_for_boat.pdfIn PDF document text
- http://kizawaro.22web.org/mentalist_season_2_english_subtitles_free.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://gudazakagozugaj.epizy.com/48609774438.pdfIn PDF document text
- http://latowetutut.epizy.com/1_cm_graph_paper_a4.pdfIn PDF document text
- http://lixugojobipiwof.epizy.com/the_powerscore_lsat_logic_games_bible_workbook.pdfIn PDF document text
- http://jumebesatupa.epizy.com/52897513666.pdfIn PDF document text
- https://0306adf0-382e-42f1-903d-71c3961c97f1.filesusr.com/ugd/7ff653_3fcb8fb44db74da996bbc945a3c44c3b.pdf?index=trueIn PDF document text
- http://dobupefibukin.epizy.com/ansi_encoding.pdfIn PDF document text
- https://56a79910-2d97-40e4-a1df-bca3b17021d7.filesusr.com/ugd/2721fc_5150fbf6662f4ac085e142f65af3482a.pdf?index=trueIn PDF document text
- http://dejogamolefip.rf.gd/texas_mechanic_s_lien_affidavit_form.pdfIn PDF document text
- https://c8f6a2ed-bc8a-4fd4-b26a-19707db7c4cd.filesusr.com/ugd/1cc7e8_70359b32b88a4eb0aa9adc8fcc345f42.pdf?index=trueIn PDF document text
- https://12c9c681-cafc-4f88-93da-cb6f471fd49a.filesusr.com/ugd/f09a9d_f0f4e41193ad4ff2b42bb5b1d23f58cf.pdf?index=trueIn PDF document text
- http://fifomivosa.rf.gd/utorrent_pro_apk_app.pdfIn PDF document text
- https://4c5ad993-366d-4b3a-aa99-9b6f56583180.filesusr.com/ugd/01e791_2a04601e8de94120a6db62903fc3c37f.pdf?index=trueIn PDF document text
- http://gevejonitu.onlinewebshop.net/8123567990.pdfIn PDF document text
- http://repogadobuwiri.epizy.com/film_benyamin_sueb_biang_kerok.pdfIn PDF document text
- http://bukuzagalu.rf.gd/57611236956.pdfIn PDF document text
- http://lojuwuwa.rf.gd/plataforma_streaming_da_disney.pdfIn PDF document text
- https://fa886832-b9e3-4ce5-a98c-97da2614721f.filesusr.com/ugd/9f8050_b5d6d2d60c76445d8ffcb57132ff4bad.pdf?index=trueIn PDF document text
- https://ebbb41b5-b8b7-4bfc-9e1b-23e79ad93844.filesusr.com/ugd/5eba67_62d1484e4e8040d3926eb17adea87f81.pdf?index=trueIn PDF document text
- https://944bcc21-9f45-42c2-9889-8cf837fa5d1c.filesusr.com/ugd/50f869_66bb53cbfdec4edcb6c9956a94c1e4df.pdf?index=trueIn PDF document text
- https://02664c88-84e5-42fa-aae3-682d3a0d4328.filesusr.com/ugd/39d081_f53926cf577247c98d55b573fc009a59.pdf?index=trueIn PDF document text
- https://fccd5518-64e1-462d-9dbe-8d8d8a19ca7a.filesusr.com/ugd/eb005d_34ed340dc21e4d15bb5627011cbbf078.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_off0000ff62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF62 | 5620 bytes |
SHA-256: afc32507b3c50cdf31ad663d3727ebe15562ceb6b38824ebdc58254a01a619a3 |
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font_01_sfnt_off00011259.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11259 | 10996 bytes |
SHA-256: 5ad1af285fce975cde1c557f4fe0a95ddc725039ce08f8c54bc7375faf298152 |
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