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-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://leonvi.ru/strik?utm_term=academic+writing+for+graduate+students+pdf+download PDF link annotation
- https://xotozefubineru.weebly.com/uploads/1/3/4/5/134576546/4008336.pdfIn PDF document text
- https://zitadinenere.weebly.com/uploads/1/3/1/8/131871439/tibafoligeto-zaxubes-gakedovob-vitajuda.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4384825/normal_5feb225a47aff.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4406202/normal_600499ac6e4de.pdfIn PDF document text
- https://tazuwadafif.weebly.com/uploads/1/3/4/8/134857375/9490535.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4428052/normal_60535be28c301.pdfIn PDF document text
- https://kawififelotus.weebly.com/uploads/1/3/1/4/131437833/rupegepakopowavexati.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cb70cc59-2297-49c3-b7e2-2ac7e26e28d4.filesusr.com/ugd/4479ed_654e96682ed14c5aad926b869e68b665.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/32ae7143-f2ae-410d-8f39-897af4f984bd/how_to_pair_pioneer_deh-x6700bt.pdfIn PDF document text
- https://5071cc05-3fa2-46b1-b944-d2523ca4b51d.filesusr.com/ugd/62e2c1_053f87adfac843e2b7ce79f2c7762cbf.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/vokeri/cosas_que_hacer_en_la_ciudad_de_mexico_cerca_del_aeropuerto.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ea9b5445-0883-4a2b-b61d-0ddb2ac55bd9/97653352940.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5f1b350c-5812-4ff6-9957-4cee3c27b3f9/kituperutokezepevatolop.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/961a36c9-b036-47af-ad9e-d90f69675ed3/vakutekixudipax.pdfIn PDF document text
- https://s3.amazonaws.com/wiremeresegikon/ruvezilivogugusafi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bc9be781-49a4-4119-be02-41854b77ebc6/65069661841.pdfIn PDF document text
- https://s3.amazonaws.com/wewiro/xeresufojofisozoro.pdfIn PDF document text
- https://d4bcd744-2348-4fe3-9006-05b2fcbd3cbd.filesusr.com/ugd/704566_d7837393dd13405084867055f70f8d8e.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/87a2157f-d171-4e0c-949a-58f37948d232/207150248.pdfIn PDF document text
- https://s3.amazonaws.com/kovezux/90506127577.pdfIn PDF document text
- https://s3.amazonaws.com/safenalavojuwu/goebbels_diaries_irving.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000101b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101B7 | 5440 bytes |
SHA-256: b417eb1c9dbc8787fde70f274fb5b712b799392939eb75623664a3be7e55b37e |
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font_01_sfnt_off0001142a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1142A | 10892 bytes |
SHA-256: 8bbef7360236861dae85ba9694d5058e2ca0c979a885eecfc3ef2387f38a90cb |
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font_02_sfnt_off0001393b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1393B | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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