MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure, specifically pointing to 'dafemum.ru'. The embedded URL is designed to lure users by appearing to be a 'complementary colors worksheet'. While no scripts were extracted, the PDF structure and the malicious URL strongly suggest a phishing attempt to redirect users to a compromised site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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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 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://dafemum.ru/wix?keyword=complementary+colors+worksheet In PDF document text
- https://cdn-cms.f-static.net/uploads/4418185/normal_602aadc21ccef.pdfIn PDF document text
- http://haifaiv.ru/bissell_poweredge_pet_vacuum_81l2auuzq1.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4426407/normal_5ff39e00a7897.pdfIn PDF document text
- http://kigurumi.org/descargar_libros_de_fisica_universitaria_gratiskmpd9.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4378834/normal_5fca83b78a114.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4425910/normal_5fd22a16cda28.pdfIn PDF document text
- http://fertpin.online/1528404854po1op.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4387408/normal_5fe06f7a5695b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374983/normal_602b4d70d6755.pdfIn PDF document text
- http://bitcoinlearningcentre.online/wuberuterusewajuxuzaha25s.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/13ccd1e9-0e78-481a-a8a6-a0fd129ae94f/82847178347.pdfIn PDF document text
- https://s3.amazonaws.com/mivokozibu/nemefulazovagilin.pdfIn PDF document text
- https://s3.amazonaws.com/dotivaf/binalewala_music_sheet.pdfIn PDF document text
- https://s3.amazonaws.com/jazamerijekufol/after_effect_template_free_logo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/35280cca-6b8f-4f43-8c82-6c6d7b178d87/what_does_lets_chalk_it_up_mean.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b585a179-d2b9-4121-9ae1-0d9d9459f4a3/herramientas_de_monitoreo_de_red_windows_gratis.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/055d6217-0d44-4c56-b7f4-cef788058951/vizio_code_for_universal_remote_ge.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/79fd7f4a-7585-427b-8112-e4fe9469e515/the_secret_life_of_the_american_teenager_cast_season_3.pdfIn PDF document text
- https://s3.amazonaws.com/makixibawumebol/4416001208.pdfIn PDF document text
- https://s3.amazonaws.com/gawabog/google_sheets_filter_view_range.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_off0000ed43.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED43 | 5196 bytes |
SHA-256: d181ec0a1b9f96ea0de7e1b33612f518821cf1b13ba93e90dfee7602b0e35a8f |
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font_01_sfnt_off0000fed1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFED1 | 10948 bytes |
SHA-256: 22e8231333ceae7ee2bd466e45147df65888416da88c9d502ee939176b9fe5bd |
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font_02_sfnt_off00012481.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12481 | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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