MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL `https://dafemum.ru/strik?utm_term=the+origin+of+species+the+making+of+a+theory+handout+answers` is the primary indicator of malicious intent. While the document body is heavily obfuscated, the presence of this malicious URL strongly suggests a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://dafemum.ru/strik?utm_term=the+origin+of+species+the+making+of+a+theory+handout+answers In PDF document text
- https://nobuzuza.weebly.com/uploads/1/3/4/7/134757083/topowarat.pdfIn PDF document text
- http://rupezodaselo.22web.org/tovosugabenafuzip.pdfIn PDF document text
- https://kusejibetejoxer.weebly.com/uploads/1/3/4/7/134749151/foliweb_dupudo_saxijetubed.pdfIn PDF document text
- https://jijixedo.weebly.com/uploads/1/3/1/3/131398351/xowopo.pdfIn PDF document text
- https://cdn.sqhk.co/voxedijudibo/xqOIxgc/slice_pizza_delivery_near_your_location.pdfIn PDF document text
- https://cdn.sqhk.co/rebiguta/Niahe9e/99945709674.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413850/normal_601457d18ccf4.pdfIn PDF document text
- https://dinadexoliba.weebly.com/uploads/1/3/6/0/136091941/61eeaf5f8a.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4387428/normal_5fe5d749a8bc4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385231/normal_603f44b38f1d6.pdfIn PDF document text
- http://tajezedireg.iblogger.org/kataguwofuxumupazinazaked.pdfIn PDF document text
- https://cdn.sqhk.co/turanexode/dfdxrhe/31350227708.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417530/normal_603d8b86c6c7d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4469103/normal_60121696e981c.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://mikijelirisu.epizy.com/all_in_one_accountancy_class_11_solutions.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b0d06fdb-d20a-46c1-9977-9361986628e9/85575292321.pdfIn PDF document text
- http://jutekezas.rf.gd/natunegokaworuxemefiru.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/034b2ea6-fda0-4f5e-b15b-e56ae81e4951/muscle_building_arm_workouts_without_weights.pdfIn PDF document text
- http://labofowidora.epizy.com/42425815777.pdfIn PDF document text
- http://dovadef.epizy.com/myers_psychology_for_ap_2nd_edition_notes.pdfIn PDF document text
- http://pisobugesonanin.epizy.com/fewararoxevometuti.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/87abf181-506f-4669-b6e4-ca44cee4e93f/joxobobupolizudokimuz.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_off0000ec5f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC5F | 5744 bytes |
SHA-256: 53f5f2376d4876f328449e488ae7c386e91b9cf6037860fea44687bfa2934a69 |
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font_01_sfnt_off0000ffe0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFE0 | 10892 bytes |
SHA-256: e6929c00da6a63ce50b80fe57721f7554aabbb9b1a7c136d12be721e8fcff1e6 |
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