MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous embedded links, many of which are part of a link farm hosted on disposable infrastructure. One critical heuristic indicates a direct link to known malicious redirector infrastructure. The ClamAV detection and ML classifier further support its malicious nature, classifying it as a phishing trojan. No scripts were extracted, but the embedded links are the primary mechanism for directing users to malicious sites.
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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://crophysi.ru/strik?utm_term=what+items+do+i+need+to+wash+my+car+if+i+don%2527t In PDF document text
- http://livecopyrightverification.com/barricades_mysterieusesitsov.pdfIn PDF document text
- http://b0xberry.online/what_jobs_can_you_get_with_a_media_communications_degreek0dny.pdfIn PDF document text
- http://securityverifiedservices.com/haikyuu_temporada_1_capitulo_6_sub_eu1b6m.pdfIn PDF document text
- http://gladkoe-telo.xyz/john_deere_4045_workshop_manualcfzvk.pdfIn PDF document text
- http://hayatevesigar.online/gdp_and_per_capita_income_of_indiarvnl0.pdfIn PDF document text
- http://erogan24.website/71937933762qqes4.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://34e2f0dc-0077-42bd-a047-efa2502e92af.filesusr.com/ugd/8a05ec_2e4e87a3ff4e40f2889156f8c2bf8ba4.pdf?index=trueIn PDF document text
- https://a9f3490c-def6-45ea-9957-aefa341d54bd.filesusr.com/ugd/84b587_338d02007a484d06b66139011f73aadd.pdf?index=trueIn PDF document text
- https://b6f97e74-198a-461d-a312-d71b9712332b.filesusr.com/ugd/a2d007_213a2b0ce5994931a67bbb7236a29d8c.pdf?index=trueIn PDF document text
- https://d427386d-3434-45d9-8802-370857a594f4.filesusr.com/ugd/accd1f_e6a06f6ad03e42f69f5dfb12cdb00f7d.pdf?index=trueIn PDF document text
- https://e3e1c2aa-7f41-47b0-8c2f-d823cb48b857.filesusr.com/ugd/7598fa_c510d1535e364aec86b2e3692f01b67d.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/60155839-0ede-4297-a98f-f70c3ad2785e/vitir.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5a3a7823-5ff6-4702-9eec-e9e9f866f8af/nasani.pdfIn PDF document text
- https://a6f18165-9bfd-46c9-8f51-0ab50cd0b687.filesusr.com/ugd/265c7a_8740a0dc844b4c1bb0897d3a9fbad353.pdf?index=trueIn PDF document text
- https://e85625e8-91d5-48c2-95a4-67b7b95d5b39.filesusr.com/ugd/b97a97_7fa8ea3e7a1b4c1ab7f4aff2b0e07937.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/88ce4c36-6248-4c2c-90cb-ec2afab65262/thomas_the_other_side_of_the_mountain_roblox.pdfIn PDF document text
- https://2ddedb0e-b7b0-41c9-a8bc-c018bd0e6e4c.filesusr.com/ugd/70094d_321f3865185c4140a0bba1230ab9f98e.pdf?index=trueIn PDF document text
- https://83372c7a-1065-4b07-8284-b64562b46e84.filesusr.com/ugd/035489_78e2f4909b65414aada667a5dadacadf.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_off0000f5d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5D8 | 5468 bytes |
SHA-256: cdd2226f2e83b0c56197a559d4ccde61b6beb2b19964547d049da96093216b43 |
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font_01_sfnt_off0001086c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1086C | 10660 bytes |
SHA-256: cd97d1250316c909fb058bf768f8799f9f60fec332345cd6206d6faf25549242 |
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