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 0.9998
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://gimoguvi.ru/award?keyword=atualizar+boleto+santander+pdf PDF link annotation
- https://cdn.sqhk.co/pulazapusaw/geIhdii/lizitase.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4402721/normal_6002b1c38fc36.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4444102/normal_5fd2cb4c379c3.pdfIn PDF document text
- https://cdn.sqhk.co/totafeta/iUVOiiD/nevozojapanadasid.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/tarajix/4688476252.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b6c2302a-5863-4593-a487-993d21442999/86300113473.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1bcb7439-b9cd-436e-9991-2d2fcb7695f3/introductory_econometrics_a_modern_approach_problem_solutions.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e5063338-f42a-40ea-950f-3612499fe324/gopro_hero_4_silver_firmware_3.00_download.pdfIn PDF document text
- https://c63ca81c-6df4-4ec3-bc2e-8508f29a6879.filesusr.com/ugd/d48fe3_02104ee7fc74409e93a4613bc92afed6.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/sudevejerifu/basic_addition_worksheets.pdfIn PDF document text
- https://3633ae4e-9acc-45df-885e-1bfa1481cb44.filesusr.com/ugd/e73054_600ac821edc0476daf13ac2b4b6f449d.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/nisiwanolom/before_sunrise_full_movie_worldfree4u.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3e14bdf3-f31b-4d36-97f9-59d7c011b6fa/best_rubber_watch_straps.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7cba6d41-4a5c-4315-9896-8781e2101203/57518369148.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/94bbf5c9-3e11-4afc-85d3-2d5c5ccdc888/suxoru.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d9f1e3a9-e364-4664-94f6-068481c6fdad/baby_girl_dresses_party_wear_online.pdfIn PDF document text
- https://ff0b3df2-dc61-4aeb-9024-93fa9b5bc175.filesusr.com/ugd/aa14a9_4cf1fde552a34e7a9706e3e7df0281b3.pdf?index=trueIn PDF document text
- https://58eafb2e-ea74-4523-a1b2-d2e0fe9bfe54.filesusr.com/ugd/466fa0_59ef75de309a49c186cd1affb5bc0ff5.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e803.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE803 | 5212 bytes |
SHA-256: 04cb6112ce6b1e11caa8df22d9e5dfcf89897ae52b5f0d3950f7d6f0fb5bd9f5 |
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font_01_sfnt_off0000f9cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9CB | 12972 bytes |
SHA-256: 206291a2155e6b7ad8ab76f774b330ec11ee22191d9c9d0d8d13049d51572aaa |
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font_02_sfnt_off00012213.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12213 | 16312 bytes |
SHA-256: 531e37f64a2e7dc3bfb257675d9e6c644c7b1597f33ba9a969cd005a7ed65660 |
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