MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF document was flagged as malicious by 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 0.9995
Heuristics 5
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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://xajibur.ru/123?utm_term=solution%252F+colloid%252F+suspension+lab+answers PDF link annotation
- https://vivexizakodol.weebly.com/uploads/1/3/1/4/131483194/wakofodebajezutanar.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4394073/normal_5fd833818a664.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4446283/normal_5ffd53a92badc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368244/normal_5fdc498a477f4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4460060/normal_60311b05a1a32.pdfIn PDF document text
- https://lexizade.weebly.com/uploads/1/3/4/3/134368494/bigabujizeworura.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4424330/normal_600e8dc6f0d51.pdfIn PDF document text
- https://fofirajajamide.weebly.com/uploads/1/3/4/6/134643930/9c85b08b61.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417319/normal_6050bb6cd0d52.pdfIn PDF document text
- https://feronokemafa.weebly.com/uploads/1/3/1/1/131164109/lidejuji_nawon_wiguwufuxugujuf_vomexazakijox.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4491670/normal_600a55c066687.pdfIn PDF document text
- https://vigodabazo.weebly.com/uploads/1/3/4/8/134872933/37b0d774dc17.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476758/normal_602810e4be873.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://77a80da1-97a3-4b40-ba11-54c6d232eb66.filesusr.com/ugd/39a0fd_56ea8df40cd0484d96c42958d9eb88e4.pdf?index=trueIn PDF document text
- https://569961a5-e6b5-462d-8b38-7193d5e7b20b.filesusr.com/ugd/a37a2e_221ec60880624488b375c40ed24a9490.pdf?index=trueIn PDF document text
- https://eaae50f7-3b1c-4f1b-9b3c-e2a48377569d.filesusr.com/ugd/b96e41_ba1f39d6022242069815d54801e79dda.pdf?index=trueIn PDF document text
- https://c5b3e1fc-3b55-407d-a8d9-2bfa6c9015c1.filesusr.com/ugd/6df244_4fff558c46594edf99be6365f167e907.pdf?index=trueIn PDF document text
- https://52970ad9-ef66-4601-a12c-13214e782687.filesusr.com/ugd/bca722_43a20c6a93774f88b07f0b168f9994a7.pdf?index=trueIn PDF document text
- https://229c3593-bb94-4e5d-9b9f-ca3747df48ef.filesusr.com/ugd/145364_f141f12b31a043c78974bed52388f3e5.pdf?index=trueIn PDF document text
- https://55963656-6eb1-4b25-bcd5-bb835d65808b.filesusr.com/ugd/0064ae_279562dfd6fe42c6a831b300ec046dd4.pdf?index=trueIn PDF document text
- https://ad843f61-c544-48d7-8cfb-3c048b9edb46.filesusr.com/ugd/0dd9ed_165266e09e864fbe972220893471904e.pdf?index=trueIn PDF document text
- https://4b5f4e46-8b81-4257-bf39-61fc08ba57b0.filesusr.com/ugd/7ea8bb_db9c1277024b4723862f377e95971f30.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_off0000e927.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE927 | 5440 bytes |
SHA-256: e7576e0000746ee92b6f212393f9873241c4427a69a120c0e40d193ae869841c |
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font_01_sfnt_off0000fbc5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBC5 | 10436 bytes |
SHA-256: eb51fbb3c33762045b4fb7c34e9f1415bf930f81c727a4f9ee3b50818fce058a |
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