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 0.9997
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://pelibifir.ru/award?keyword=discrete+wavelet+transform+book+pdf PDF link annotation
- http://visobewitumimek.22web.org/vuposasunetavuf.pdfIn PDF document text
- http://nodozavi.iblogger.org/chale_aana_lyrics_mp4_song.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://16fd3b15-5541-4454-9538-28daacbf497e.filesusr.com/ugd/e32576_2b0793ca27a44d1a8003be763184dbc7.pdf?index=trueIn PDF document text
- https://7fad2989-91b8-457c-89bc-9a0e7aeef19f.filesusr.com/ugd/b03ff3_895a7699bfa94f92bd2253d1f6c8cdd8.pdf?index=trueIn PDF document text
- https://acd80754-3b70-42c6-a60f-3489f6261da4.filesusr.com/ugd/f1780b_3be80accad53433ab55affce87485c24.pdf?index=trueIn PDF document text
- https://167c8e7b-8160-49a2-a88e-f26749d647c8.filesusr.com/ugd/1ad47d_ea2d60372ed648d8889fa3c9755c837e.pdf?index=trueIn PDF document text
- https://a52dd608-e7dd-4d50-8005-e0fd7a3896b4.filesusr.com/ugd/43d2fc_39835258a9714944a078dd35f668e412.pdf?index=trueIn PDF document text
- http://ketanuviz.epizy.com/catalogo_cuentas_sat.pdfIn PDF document text
- https://4de1274e-a26b-4e71-a0d1-d86f0cfee7ee.filesusr.com/ugd/ee4d88_3141df86d7924080bcf0ab4c598d3695.pdf?index=trueIn PDF document text
- https://78f5967e-1348-44d0-b43d-4fba71d4c3e7.filesusr.com/ugd/a94f6a_923364d297ab4731bc0f93f6df31ad38.pdf?index=trueIn PDF document text
- https://cae2aa39-5014-47ec-b549-0fed73f36d02.filesusr.com/ugd/c8683e_a7ac9ed750b04c7695ec5f81be1eeef4.pdf?index=trueIn PDF document text
- https://54e283d8-6946-47af-b6e3-c78582312647.filesusr.com/ugd/22cd47_abcedb378ca344a2b3a114ac8c726586.pdf?index=trueIn PDF document text
- https://7835c217-6b95-46a1-915a-76cdebae3fe0.filesusr.com/ugd/debfb4_ab81a30c4a9f43df967afcb42307f204.pdf?index=trueIn PDF document text
- https://cf62593c-3f62-494e-9ef9-3c2a63ead7d7.filesusr.com/ugd/93dae2_0a0cd5313ecb4f7788aa74d99ff2f0d0.pdf?index=trueIn PDF document text
- https://1423d76f-a56f-4481-bf87-726e17039346.filesusr.com/ugd/14aee2_37b21e2a904f4e0788ee4484cbceb3f1.pdf?index=trueIn PDF document text
- http://buvumurasamaku.rf.gd/psychology_facts_download.pdfIn PDF document text
- http://tikilodi.epizy.com/jowagex.pdfIn PDF document text
- http://wiwifiladovov.epizy.com/63126489843.pdfIn PDF document text
- https://bed1e925-73f7-457c-87ff-53f226988024.filesusr.com/ugd/d4a8ce_92141b823daa4796aba92afb32eb2895.pdf?index=trueIn PDF document text
- https://21d44941-995c-48b9-956b-8145330e20d5.filesusr.com/ugd/577b75_4a17b3eed45a46c7b635e85ac1941a22.pdf?index=trueIn PDF document text
- https://d7b50aa0-fea3-4edc-ba9e-4ed0094b0c60.filesusr.com/ugd/7f614e_f412bccdad5c4e109a0c00c96cf3860d.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_off0000f20a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF20A | 5656 bytes |
SHA-256: 5b93047b9f70d24dc53ce3a47b820f9368e1753589983a12439cf85dd4ac0cc7 |
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font_01_sfnt_off00010552.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10552 | 10788 bytes |
SHA-256: e3c7ae095ed011ebdb44906f03ec7de4b91ea27671efcba91212747e8c24ec8d |
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