MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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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=confusing+words+worksheet+pdf PDF link annotation
- https://cdn.sqhk.co/tifesijoja/ICEgfCn/88967503094.pdfIn PDF document text
- https://cdn.sqhk.co/koluvukirate/ijzjdO8/tenkuu_shinpan_mask.pdfIn PDF document text
- https://cdn.sqhk.co/lekusovu/9hhias1/60088129772.pdfIn PDF document text
- https://cdn.sqhk.co/wenejusuzixe/b0iagcs/gamag.pdfIn PDF document text
- http://xuxetosufuzo.getenjoyment.net/washington_state_university_ranking_world.pdfIn PDF document text
- https://cdn.sqhk.co/wedowetaso/YmgjyZM/fake_nails_kit_kiss.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/157ecda3-4990-489d-b4c7-237f4dff492d/gear_circle_bluetooth_headphones.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/246428f7-ca23-4750-9f9b-bf0744caee58/sipedebuvatirigafobaw.pdfIn PDF document text
- https://113c517c-d7b0-4b36-99d7-6722bcb7ef36.filesusr.com/ugd/8e66a5_9a4f9961c68a422ca728bed0d67efe28.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/14860ebd-79ba-4e2c-ac67-64c70f508fe6/puroxofan.pdfIn PDF document text
- https://0c2a99dd-71fd-4a0d-b96f-672cfa785c21.filesusr.com/ugd/515c54_45329c057946411283f8da32c74b7f0b.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/d36f7a26-0c70-4169-bf76-d46648a54bee/music_notes_names_and_symbols_and_beats.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e7c38eef-7892-469f-b547-22e3bbe9a8ae/the_most_human_human_summary.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7fe89675-d837-4ee1-b623-e94ac20668d5/venikabunirivisavekonosu.pdfIn PDF document text
- http://pekafujojef.onlinewebshop.net/37249735129.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ad1bf645-a7d3-4404-ada4-a6ae2aa4c835/boss_tu-3_true_bypass_mod.pdfIn PDF document text
- http://farudigenudoze.onlinewebshop.net/cellulolytic_microorganisms.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d2550b43-ce9a-478d-9130-b67af95471bd/vagazafesajupo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d410b575-68c7-4a37-917e-3ae10c24bd70/safumusagubopapiz.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0d6940c8-6960-45c7-a7de-8fe3ee436d57/kirukenurunitidajo.pdfIn PDF document text
- https://2863666b-9d79-467d-9aad-9eeb6dafbdf2.filesusr.com/ugd/6ee3eb_40241bd4059e4fc4b5a5d38370e188f0.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/495bbbf6-ffe6-435f-868c-13861dfcf0fb/fomitujowufune.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_off0000fa3d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA3D | 5124 bytes |
SHA-256: 4cdc048dc8c683a2f40604461265fe0d2410b26647b771cd94529e3e2755ca04 |
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font_01_sfnt_off00010bbd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BBD | 10896 bytes |
SHA-256: 013282d93e418a5634bd5eef363748fd8b4c5611431ffff2c984942039f5b0ef |
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