MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of embedded URLs, many of which point to disposable hosting or redirector infrastructure, suggesting a link farm designed to distribute phishing content or malware. The primary malicious URL identified is dafemum.ru, which is flagged as a known malicious redirector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://dafemum.ru/strik?utm_term=graco+sweetpeace+swing+recall In PDF document text
- http://nafaguxidu.iblogger.org/82766813089.pdfIn PDF document text
- https://cdn.sqhk.co/diridenafa/ijgfGjf/33592128856.pdfIn PDF document text
- https://cdn.sqhk.co/jukunobegabe/ciij8ig/4876575584.pdfIn PDF document text
- http://viseburigi.iblogger.org/sifitibemunixujivesek.pdfIn PDF document text
- https://cdn.sqhk.co/libavesonon/hcgjiif/best_hits_of_all_time_youtube.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://044e8d80-c429-4a1f-820d-9b443c65b389.filesusr.com/ugd/53c654_386dafb3e7044c618df7c8c40eb64a95.pdf?index=trueIn PDF document text
- https://d321836a-1bf8-47c4-b4d3-67fe1e7f0250.filesusr.com/ugd/33ab24_58e5eb9de8f14dd4b5a61b4bcd38a1db.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/32c63531-715d-4720-b337-f58259fb44b3/40388478938.pdfIn PDF document text
- https://d90bda3b-35dd-409f-9d4b-b4a00d881a52.filesusr.com/ugd/b88e3d_22631746b428430597d5102a09e5432d.pdf?index=trueIn PDF document text
- http://vibesegajepo.epizy.com/52852094425.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/65883e37-4321-48a4-936c-07c4ec14b738/39755070040.pdfIn PDF document text
- http://kinifojuno.epizy.com/how_to_answer_interview_questions_about_company_culture.pdfIn PDF document text
- https://6e7ef639-f89a-4701-86f9-710a836f1183.filesusr.com/ugd/12745a_a101a58d6e0b4afab97d804bc8fbb3f9.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/8fe5c9b6-bd48-4f4d-a725-dd8708a6b41b/habit_reversal_training_for_vocal_tics.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/87b5d61a-a642-415e-80e5-e900092fff16/formato_de_entrevista_semiestructurada_para_docentes.pdfIn PDF document text
- https://s3.amazonaws.com/wutogugej/62620260002.pdfIn PDF document text
- https://s3.amazonaws.com/topipovikapari/46381980909.pdfIn PDF document text
- https://s3.amazonaws.com/filidabut/what_is_the_purpose_of_text_features_5_points.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_off0000f0bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0BD | 5224 bytes |
SHA-256: f4b66e2c6eb6d51b338a19ce667d116736bc0e1dd840cdd6a74977fcf0dc5170 |
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font_01_sfnt_off000102a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102A9 | 12700 bytes |
SHA-256: d8f14a8be84444733abc2ac13d6505a98b4004917a3589367a16eab085d24168 |
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font_02_sfnt_off00012d8d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D8D | 16204 bytes |
SHA-256: e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15 |
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