MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple embedded links, with at least one identified as a malicious redirector pointing to 'https://crophysi.ru/wix?keyword=bluetooth+apk+android'. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body is heavily obfuscated, but the presence of numerous links 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://crophysi.ru/wix?keyword=bluetooth+apk+android In PDF document text
- https://cdn.sqhk.co/segexiji/cCidseh/teachers_college_press_book_proposal.pdfIn PDF document text
- https://cdn.sqhk.co/gesokusa/F7Zvggj/verizon_4g_lte_network_extender_user_guide.pdfIn PDF document text
- https://cdn.sqhk.co/matajikiwov/iAbXjbN/mijovituxakevo.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4483365/normal_5fc8a979ac1cf.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450151/normal_601dbaf778e75.pdfIn PDF document text
- http://xojuxelase.medianewsonline.com/bakitevirivowisa.pdfIn PDF document text
- http://sanalunuguto.22web.org/61381131225.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4379476/normal_5fca2a6de91fc.pdfIn PDF document text
- http://jofifuneku.medianewsonline.com/aws_associate_architect_exam_questions.pdfIn PDF document text
- https://cdn.sqhk.co/sivefuxonix/8hd3ian/lopamave.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4372719/normal_602c7de62e56c.pdfIn PDF document text
- http://juwupexutaval.mywebcommunity.org/dd_phb_classes.pdfIn PDF document text
- http://tokesuditetu.getenjoyment.net/free_argumentative_essay_examples_for_high_school.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4464083/normal_5ff4dba477fb7.pdfIn PDF document text
- https://cdn.sqhk.co/benanejufa/fa9hfgf/61999542218.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/d0625cf4-edf0-47b1-a447-1de62f461d4e/51414130687.pdfIn PDF document text
- http://wajufuful.rf.gd/catcher_in_the_rye_chapter_summary_13.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/86fe2a9a-d799-47f8-9df4-386bd0bbf6e0/94939121561.pdfIn PDF document text
- http://kujafugakare.epizy.com/natim.pdfIn PDF document text
- http://forezepolutaju.onlinewebshop.net/67578627158.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/73e66e8f-885f-4382-ab1c-c26a2356a1a8/the_bedford_researcher_5th_edition_free.pdfIn PDF document text
- http://namulamix.rf.gd/5805677075.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_off0000f94c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF94C | 4980 bytes |
SHA-256: adfe48038b29e6f3d45234973df580fbe7d0146e8a2b7c043c84f21dff9fa63b |
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font_01_sfnt_off00010a32.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A32 | 11072 bytes |
SHA-256: af6d7d72f283c7292f75f0fceb2d28513f86cf1440aeecd0450b90c5f9c45c0e |
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