MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF file identified as malicious by ClamAV and an ML classifier, containing a large number of external links, many of which point to disposable hosting. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf and includes a URL that appears to be part of a link farm. The presence of numerous external links indicates an attempt to redirect users to potentially malicious sites, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://soxebez.ru/123?utm_term=audience+analysis+for+informative+speech PDF link annotation
- http://puvepape.22web.org/29176320670.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4477913/normal_60567ada51894.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485305/normal_606d5bb0a9592.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481684/normal_602895650c989.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://03f57db0-fbcf-46ec-8713-21b5992b8512.filesusr.com/ugd/455f95_2e3af13fb0bf4fd7a42363be80e6c733.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/zafaronivaj/78779806500.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/69a3d094-ead9-4302-a4e7-fb096ecbb9ac/datowexajixafanevaguro.pdfIn PDF document text
- https://2903667b-e544-4972-ac7f-e5855aaa9b37.filesusr.com/ugd/2cc660_2b26c372eeea48868d93199e4e4f4ab9.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/1487d7f9-19c6-4911-981d-ca935e435ae0/oracle_database_12c_pl_sql_programming_mclaughlin.pdfIn PDF document text
- https://s3.amazonaws.com/bezorito/cara_menulis_email_formal_bahasa_indonesia.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/df9afa23-22a9-45b4-a810-81c1abc9ec7a/kivotebuje.pdfIn PDF document text
- http://ruzizasasasami.rf.gd/56612078110.pdfIn PDF document text
- https://s3.amazonaws.com/padosumifubobo/deuterated_chloroform_solubility_in_water.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e805c167-043a-4a35-ba60-43943985348f/gusowapudabirenu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0cfad127-1aa0-43da-a554-1cf2f89cb94a/94852237737.pdfIn PDF document text
- https://d2d87fd5-5f4d-49aa-ab3c-2263ce4b5d22.filesusr.com/ugd/9169d2_08692f4030a142d5a09a40c76f128df7.pdf?index=trueIn PDF document text
- https://7f3dc8b3-869c-44c5-82eb-14ae88d57796.filesusr.com/ugd/dc4ca1_9b0cc3053b554ad880756fc39bd178fb.pdf?index=trueIn PDF document text
- https://7dad073a-5858-4d13-bf35-a645d3acb044.filesusr.com/ugd/71e439_65da0b7ee8d348f883874b4188d21d59.pdf?index=trueIn PDF document text
- http://xiwaresijo.epizy.com/free_to_air_tv_guide_sydney.pdfIn PDF document text
- http://junorijuzijipu.rf.gd/mapleroyals_bowmaster_guide.pdfIn PDF document text
- https://45b0b119-5f8c-43e7-b437-4e12d17c1c81.filesusr.com/ugd/3826db_572a1a808cc54e6e9bdb4e4f9fd4e53f.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_off0000eef6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEF6 | 5548 bytes |
SHA-256: 6027edd7442752daeff542fde6a08d01530c36e0ecff1787feaebd5a2d295d08 |
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font_01_sfnt_off000101bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101BD | 10116 bytes |
SHA-256: 4ca8b7d68fa6a20d0f67131bf2d72e3c0403ee4232945bd9a71520ad9aa44cb7 |
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