MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many of which point to a redirector infrastructure. The primary malicious URL identified is https://dafemum.ru/strik?utm_term=metodos+experimentales+para+ingenieros+holman+pdf+descargar, which is flagged as a malicious redirector. This suggests the document is designed to lead users to malicious sites, likely for phishing or to download further malware. No scripts were extracted, but the presence of numerous links and the ML classification strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 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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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://dafemum.ru/strik?utm_term=metodos+experimentales+para+ingenieros+holman+pdf+descargar In PDF document text
- https://cdn-cms.f-static.net/uploads/4446770/normal_60446c5a3e500.pdfIn PDF document text
- https://bopugokux.weebly.com/uploads/1/3/4/9/134901566/nugokozagaxivewo.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4488102/normal_6038df8a686b6.pdfIn PDF document text
- https://leresidatebij.weebly.com/uploads/1/3/0/7/130776374/2598527.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4496580/normal_60167046ae6e6.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4461484/normal_5fc97869a0d40.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4407756/normal_60635f857e302.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4489404/normal_5fe49ddd62552.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/8c5ea5ce-c0fa-47cf-8f79-b8f1e360ee7d/antique_craftsman_drill_press_for_sale.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1fb4ce99-639b-466e-aeea-a3ee72c2e99b/roland_juno_di.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6d1fd031-d454-4909-b52d-072b8126f2f0/are_big_green_egg_worth_it.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/13b5bc5a-2896-455d-8b7f-a8011548b870/subject_verb_agreement_worksheet_3rd_grade.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7d517098-03ae-43d9-bf11-f76885615a26/burger_king_breakfast_menu_low_calorie.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/883dc288-5a07-4a2c-ac8e-79fe9a1d20f3/guvomodegitageluderot.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e25f1f1e-ac59-4f56-a54e-a8535a0b589b/el_mundo_de_sofia_en_espanol.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dea3fe94-7dd3-4cfd-a73d-cd05e7f50728/duvowazuvuledasesobazu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/16d5445e-062e-460e-97ef-52ad0be2d47a/96926736144.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/34c8eaaa-0bd4-4e84-8c71-975810c42453/is_magic_mouse_2_bluetooth.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7aa5e940-c530-40d6-94a4-9edadb77ec0a/retomovafi.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001773c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1773C | 5644 bytes |
SHA-256: d25f21fb3b660c7fd4a9c392d2e0fbe9849678a8cd42fe073f120d103ba0a4dc |
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font_01_sfnt_off00018a55.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18A55 | 13484 bytes |
SHA-256: 5056dc506df05eedea8aa912e4b8d5e33b9059671eb2c04b956f9167285a2bdc |
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font_02_sfnt_off0001b694.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1B694 | 16160 bytes |
SHA-256: 3001e1ba5cd9735427904536e8169fbd06c68075bc6564ba59277239877d2fbe |
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