MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of embedded links, many pointing to disposable hosting, indicating a link farm for SEO manipulation or to distribute further content. One critical heuristic identified a link to known malicious redirector infrastructure. While the document body is heavily obfuscated, the presence of numerous external links and the malicious redirector strongly suggest a malicious intent, likely to lead users to harmful sites or download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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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/wix?keyword=springboard+algebra+2+unit+1+practice+answer+key In PDF document text
- http://fufirewavit.getenjoyment.net/what_is_the_social_contract_theory_of_jean_jacques_rousseau.pdfIn PDF document text
- http://mejumafegebameg.mygamesonline.org/asterix_the_gaul_download.pdfIn PDF document text
- https://cdn.sqhk.co/razotefo/a84hdGV/ridedawuvem.pdfIn PDF document text
- https://cdn.sqhk.co/vomuvojovi/lheJhfT/free_sheet_music_jingle_bell_rock.pdfIn PDF document text
- https://cdn.sqhk.co/kafekogi/hfihq2b/fozogufofotedod.pdfIn PDF document text
- http://kerutugizuxig.mygamesonline.org/vozejakofepatoxusirakevi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://348ddb29-83e1-4812-94a1-743b72ef9b42.filesusr.com/ugd/23b571_b223315f24d84694b628538dc034e5fd.pdf?index=trueIn PDF document text
- https://b5c4f4dd-ae1f-4f6a-908c-f463551224e4.filesusr.com/ugd/dafd60_719c3843cd56493cb82e9e482289f810.pdf?index=trueIn PDF document text
- http://karuzuk.rf.gd/1256505554.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9f19fb1b-b150-4a15-9bd0-b39f1d7478ef/37380861651.pdfIn PDF document text
- https://b4b1177d-4bc4-41a3-a5b4-f2139f20ad04.filesusr.com/ugd/9c43ec_859f24b5a8fa4b5fbb0d421a71b1bfb8.pdf?index=trueIn PDF document text
- https://275320ff-96dd-455a-9699-a0fdc58b27a5.filesusr.com/ugd/943725_1ecda083a0144db4bbb2bccbe54665dd.pdf?index=trueIn PDF document text
- http://fujobabojix.rf.gd/odd_thomas_2_film_online_subtitrat_in_romana.pdfIn PDF document text
- https://d71fc03c-aea6-48f7-a990-8afffb22108d.filesusr.com/ugd/3de8a6_2d1b61465726480d8239a216a8e4a176.pdf?index=trueIn PDF document text
- https://39c1d623-eccb-4af0-a86a-15328a2d61f9.filesusr.com/ugd/3cb6cb_18080a2b1158470cbdca59a0de5ea74f.pdf?index=trueIn PDF document text
- http://wugujub.onlinewebshop.net/stihl_ms_180_c_price.pdfIn PDF document text
- https://0df22b04-17ae-4e65-9af8-3af4445b4601.filesusr.com/ugd/71fd01_a7a5f32719df4528a07c54c557a1e224.pdf?index=trueIn PDF document text
- https://8b5ac0f3-2bc4-49a6-9a99-2541af31b215.filesusr.com/ugd/f2ef67_2fb323d3f6ea49478f7af6b210448477.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/2d8b2313-fe44-40f6-90b6-520837901f4e/par_quoi_remplacer_le_cognac_dans_recette.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_off0000fd2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD2F | 5928 bytes |
SHA-256: 87631785868adcd36ce33bb8272a95ee78058feec4d9c9a524d8e8c257e73645 |
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font_01_sfnt_off00011183.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11183 | 15388 bytes |
SHA-256: f0b5508d7f2cd36cb23af063f3140d0873d04eb0e8097a0cf432a5c40f23085f |
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