MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many pointing to disposable hosting, and is flagged by ML and ClamAV as malicious. The primary URL, 'https://xajibur.ru/wix?keyword=formula+or+molar+mass+worksheet+answers', suggests a lure related to educational content to drive traffic to potentially malicious sites. The presence of embedded JavaScript, though not explicitly detailed, is a common vector for exploiting PDF vulnerabilities or redirecting users.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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/wix?keyword=formula+or+molar+mass+worksheet+answers PDF link annotation
- http://vanesifonemume.22web.org/53473838707.pdfIn PDF document text
- https://cdn.sqhk.co/bifoligi/hiElv07/xefedekoxiwomipilozi.pdfIn PDF document text
- https://cdn.sqhk.co/pofoxubo/0vDIxhe/pyramid_runner_online_game.pdfIn PDF document text
- https://cdn.sqhk.co/jabosuve/bPhiHTW/vadimilalasif.pdfIn PDF document text
- https://cdn.sqhk.co/zulatobi/jeicpm3/school_days_song_download.pdfIn PDF document text
- https://cdn.sqhk.co/noluxokeruma/jie8jkX/1177342616.pdfIn PDF document text
- https://cdn.sqhk.co/sekigizakeku/ifhc35D/janemafi.pdfIn PDF document text
- https://cdn.sqhk.co/pefisemise/LBbf6hg/best_tuner_metronome_app.pdfIn PDF document text
- https://cdn.sqhk.co/jomonufo/fHhiOts/w3schools_sql_editor.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://c5c27394-2042-4749-9b39-d1c24dcbd9f0.filesusr.com/ugd/e9b987_5387b56edfa74b5f8ff7db77a7849a6d.pdf?index=trueIn PDF document text
- https://e8e87dc5-637d-47ba-9de6-e7d98d123d78.filesusr.com/ugd/a69a03_1a46b5acfe7342f7aa3b4f8e46dae8da.pdf?index=trueIn PDF document text
- https://5bf49506-6ef1-42f8-8f90-7e3689255fd3.filesusr.com/ugd/8fe1bf_3c58d2b5af944ef9a67aeead47b8e070.pdf?index=trueIn PDF document text
- https://c580675e-8888-491d-8c80-3106eaac86fb.filesusr.com/ugd/c8a981_25d827a3b7eb409094001ad7ecfa863f.pdf?index=trueIn PDF document text
- https://b564fea6-732e-489f-a029-a72dc6590de2.filesusr.com/ugd/6a4619_69f05391a26944fcb8979dcf0a73dce1.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/f31476d0-0d03-457d-8589-dc73e4b2be34/ms_project_gantt_chart_online.pdfIn PDF document text
- https://75edee45-cd08-43cb-a752-0c33e5c2343f.filesusr.com/ugd/a7c173_75685b72113c4ce29d779f6161dbf971.pdf?index=trueIn PDF document text
- http://bejuwenaja.epizy.com/45621377410.pdfIn PDF document text
- http://kixurazo.rf.gd/42221472485.pdfIn PDF document text
- https://601bead5-a720-4f65-98db-62fe2a42cb91.filesusr.com/ugd/0e52b4_4456b1c977b04fa0b531d5ff318f66e4.pdf?index=trueIn PDF document text
- https://24a70dd4-b549-4b9e-9c0a-6eea45ab85ad.filesusr.com/ugd/ab0c63_80860e3a9985439b80a3c8779c925f76.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/c012627c-ffb9-47fb-b9d9-4034800e299e/63792658697.pdfIn PDF document text
- https://da25564d-e3c2-4b9b-87ba-dd8ce2ae78d4.filesusr.com/ugd/c82cd6_fe365ac243264741bda72d59918c1784.pdf?index=trueIn 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_off0000dc4c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC4C | 5036 bytes |
SHA-256: 0c72e338a7ef87381c3a79d5bf9ef4b4a9fd3506f79d31a94f91f52ae4c389bc |
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font_01_sfnt_off0000ed4f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED4F | 10308 bytes |
SHA-256: 703ef5f934720cc09571efe44905bf1957e5aebfff704b13bcb799c0e16ce89b |
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