MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm or phishing operation. The primary malicious URL identified is https://xajibur.ru/123?utm_term=4th+grade+timed+math+worksheets, which is likely used to redirect users to a malicious site. No scripts were extracted, but the PDF structure and numerous external links strongly suggest a phishing or scam attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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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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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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External URI info PDF_URIPDF contains an external URL action
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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://xajibur.ru/123?utm_term=4th+grade+timed+math+worksheets PDF link annotation
- https://viduxetejogat.weebly.com/uploads/1/3/4/6/134600114/4991596.pdfIn PDF document text
- https://satizivuzaked.weebly.com/uploads/1/3/4/3/134383512/4268276.pdfIn PDF document text
- http://wexoxunesixu.iblogger.org/adverbs_worksheet_grade_4.pdfIn PDF document text
- http://pupofikavize.iblogger.org/puliwuvamevasux.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://69f7c7ec-f776-4f8b-90c4-e8126cd531e3.filesusr.com/ugd/772020_8a3f218e02f945fca253281e46f1f8ca.pdf?index=trueIn PDF document text
- https://6baea7ca-81e4-4a11-8410-716433a99462.filesusr.com/ugd/764aaa_bc163d7e59b74a2c9fa3bc646e820322.pdf?index=trueIn PDF document text
- https://8ed7ad90-0d0e-491f-9c15-1f6cd5a61d18.filesusr.com/ugd/f1a804_230a8a2630c843cd87b027fee6d4ce15.pdf?index=trueIn PDF document text
- http://tekisinasapev.epizy.com/amoebiasis_disease.pdfIn PDF document text
- http://diverozisutujew.epizy.com/digestive_system_anatomy_review_worksheet_answers.pdfIn PDF document text
- https://58c039e8-67b9-440d-b216-5500198d4781.filesusr.com/ugd/c4dbd3_5fcc3680017243369e983736325c4f21.pdf?index=trueIn PDF document text
- https://e082cb0d-9c22-4a21-acb7-e2c6127a51d3.filesusr.com/ugd/ff0c06_39aa2c42445c4fa2aa2ff6ac43c4109e.pdf?index=trueIn PDF document text
- https://6478d21b-237c-41b5-add8-96d7b9819624.filesusr.com/ugd/c7ef1a_69908232544c45bda4ac9f7dafc803e2.pdf?index=trueIn PDF document text
- https://d2ea4bfc-f92a-4379-acf2-d9b69981ddb7.filesusr.com/ugd/739437_bcb424db49f54e6d855f47e250dea098.pdf?index=trueIn PDF document text
- https://587b455d-cc79-4428-8e80-a8b75ce23bca.filesusr.com/ugd/021ec8_8b1e6c54a93a449e9d5c31df686fb4fa.pdf?index=trueIn PDF document text
- https://551f0ad2-75d1-4009-b90b-2f3e3e20230b.filesusr.com/ugd/c2bf0a_0cb32c6e042f4207b87ca6eabe3c10c8.pdf?index=trueIn PDF document text
- https://1c514d3f-4aca-4c14-a2cc-94ef866bc6c7.filesusr.com/ugd/860217_ac16ce0b38f943d8975a09445eaeeb6b.pdf?index=trueIn PDF document text
- http://zinamasab.epizy.com/is_electronic_world_legit.pdfIn PDF document text
- http://mafikaxavetubod.rf.gd/radarscope_app_apk.pdfIn PDF document text
- http://lakelasu.rf.gd/formdata._append_not_working_in_angular_6.pdfIn PDF document text
- http://vikogen.epizy.com/nimekusabaxegawozuwim.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_off0000cd7f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD7F | 5356 bytes |
SHA-256: d2346c4528362c97e800c460970f359cc7db72ba4f1aa2f083c0ce555524ef2d |
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font_01_sfnt_off0000df9c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF9C | 10048 bytes |
SHA-256: e464a360bd944ea5f53cff98f98224534f299182f8cda99d50b80973ce46f68c |
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