MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, and contains numerous embedded URLs. Several heuristics indicate it functions as a link farm, with many links pointing to disposable hosting or known redirector infrastructure. One URL, 'https://crophysi.ru/123?utm_term=zoo+tycoon+2+perciformes', is flagged as a known malicious redirector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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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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/123?utm_term=zoo+tycoon+2+perciformes In PDF document text
- https://jerexibim.weebly.com/uploads/1/3/4/6/134654770/bf5a8b4c.pdfIn PDF document text
- https://pituluwo.weebly.com/uploads/1/3/1/4/131437949/7436882.pdfIn PDF document text
- http://zakosemej.mypressonline.com/bagh_bhatt_ayurveda_books_in_english.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4501989/normal_602387f35e4e0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393763/normal_6017822dbfad4.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4414489/normal_5fddc31c4db56.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4376598/normal_603fc85368e24.pdfIn PDF document text
- http://fulokixowo.scienceontheweb.net/definition_of_authoritarian_regime.pdfIn PDF document text
- https://cdn.sqhk.co/mewoveri/hfhghco/ninjas_vs_zombies_typing_game.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4491175/normal_60207ddd1058b.pdfIn PDF document text
- http://kijofizovurisos.medianewsonline.com/21982913141.pdfIn PDF document text
- https://cdn.sqhk.co/pavetikedur/iijjRwQ/free_to_use_indoor_basketball_courts_near_me.pdfIn PDF document text
- https://cdn.sqhk.co/dedogupazib/ihidhfX/highway_rider_extreme_game_download.pdfIn PDF document text
- https://nigomisenavuluw.weebly.com/uploads/1/3/6/0/136095850/85d4ed316483216.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://fa53e508-d88d-41cb-897c-7a5b6f1bfcc3.filesusr.com/ugd/361045_5ccba9026772481eb74e1628abf8b8e2.pdf?index=trueIn PDF document text
- https://a7da3e60-63c8-46c1-a846-eab7df628ed2.filesusr.com/ugd/bba345_7443a79f1af243b5915ddc4397bed2db.pdf?index=trueIn PDF document text
- https://d6b7b3c7-8429-4d82-9d75-5d5d09e763cc.filesusr.com/ugd/a8c229_d73a1b5b44c74923bd76d3b9b956e31d.pdf?index=trueIn PDF document text
- https://3c45aaf8-24f3-4cde-9773-cf44a0a970d3.filesusr.com/ugd/ae7d54_4b415c20ae3b4a3589caf66ad839e9f6.pdf?index=trueIn PDF document text
- http://gavawekib.myartsonline.com/lewetajosekofupoxe.pdfIn PDF document text
- https://0ed7c29b-d5f2-4290-8b47-add6aa38300d.filesusr.com/ugd/32a223_37ddbb5d411942e880e2d5ab6bfc609c.pdf?index=trueIn PDF document text
- https://80b1f93a-fe74-4439-a81d-34814fa7a505.filesusr.com/ugd/e56fe2_8cff013c6ad44301b64c3996a39b863e.pdf?index=trueIn PDF document text
- https://a52dd608-e7dd-4d50-8005-e0fd7a3896b4.filesusr.com/ugd/43d2fc_f15e9e43cec84bfe9bd2b4cf7c412c40.pdf?index=trueIn PDF document text
- https://8ed6bd9f-de2b-4923-b7df-82f95eb18a03.filesusr.com/ugd/7fa32f_4059f35ae585411dbcc6c450635b563d.pdf?index=trueIn PDF document text
- https://a001dc82-f31e-4944-9b76-0a8e602b6855.filesusr.com/ugd/e4ee87_cc6312986cce453fb77a1cd4d2fb15fb.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_off000139f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x139F4 | 5112 bytes |
SHA-256: 662a48a09c50a695d3668e0f114057ff72e9ef6dc11ff7c43ae0b94381b237c2 |
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font_01_sfnt_off00014b5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14B5E | 13440 bytes |
SHA-256: 2f47cce6650536a8a21eb7455bd0fae47ba1702f1a43a9f9fe3d878c621285f0 |
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