MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, with a critical heuristic identifying it as a link farm. One of the primary URLs, 'https://jottigo.ru/strik?utm_term=are+coronavirus+long-haulers+still+contagious', is directly associated with the malicious verdict and ClamAV detection. The document body, though heavily obfuscated, contains text related to the URL's topic, suggesting a phishing or content-luring tactic. No scripts were extracted, but the PDF structure itself facilitates the attack.
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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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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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://jottigo.ru/strik?utm_term=are+coronavirus+long-haulers+still+contagious PDF link annotation
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/cfd037df-7d42-440a-a50f-0810cd286ecc/68196360174.pdfIn PDF document text
- https://d75bbb92-b0e4-4b50-83e6-2443e695523b.filesusr.com/ugd/bc73b9_ddef4dcadcb24e128ba63f60d85a303d.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/194be7ed-6dde-4aec-a157-ff4902612d16/12820542789.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b561a190-bd4d-42d3-bd61-f969832bf11f/printable_semi_log_graph_paper_a4_size.pdfIn PDF document text
- https://s3.amazonaws.com/wufujudisu/ambarsariya_movie_hd_filmywap.pdfIn PDF document text
- https://s3.amazonaws.com/mexesazaxasa/sekakukikur.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e3fcca19-2d01-4956-aab0-4ce9d81b815a/can_diabetics_eat_a_ketogenic_diet.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a4db41e9-192a-41e0-88b3-5e321a16abc4/2016_lexus_rx_350_for_sale_in_ontario.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b99fe2c7-d084-4926-8464-f8324cf544e3/7_principles_of_effective_instruction.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d04e0e11-dfbd-4e5a-a500-f6eed7bbaf76/56534591945.pdfIn PDF document text
- https://s3.amazonaws.com/tosego/acls_guidelines_2015.pdfIn PDF document text
- https://s3.amazonaws.com/zodererezuzuxi/enthalpy_of_formation_of_hydrogen_cyanide.pdfIn PDF document text
- https://63209029-b609-4f89-80e5-af59b408cdb4.filesusr.com/ugd/0713e6_fa9c8c548a594caab9cb34c41fcb7003.pdf?index=trueIn PDF document text
- https://e082b6be-64c0-45f6-a8ff-82b9c6f476f0.filesusr.com/ugd/1479de_1a799f19fdad47aa93e555be7e480394.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/eb99ddaf-0a58-4ce3-8740-d70c4103dd7b/70777965888.pdfIn PDF document text
- https://dd907c4b-492b-4b4d-bf3c-9f0b7a2bd2c7.filesusr.com/ugd/96a426_16c36f691f4e4b56a2ddf6c3cb902420.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/wenobagupexekap/86753991930.pdfIn PDF document text
- https://ede36962-9452-4451-b182-fa4236ba9bc6.filesusr.com/ugd/83b1b3_a2cbae5877b4480ca9ab930108d65407.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/gixirojozogufux/dipizidinovekosejoviporo.pdfIn PDF document text
- https://s3.amazonaws.com/pavujiniz/mokojulikezoziberepar.pdfIn PDF document text
- https://s3.amazonaws.com/gadumagabusodel/zitevekedime.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_off0000ed14.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED14 | 5140 bytes |
SHA-256: 658d8f427f19fc4f0a18243907d856d188b169d57afd0965be60b4ee5573cc9c |
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font_01_sfnt_off0000fe97.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE97 | 10440 bytes |
SHA-256: 12b8757604d075b13b55ae912daaa2d08760acc716b62c583ecd9bf3955a479d |
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