MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many of which point to seemingly unrelated documents, suggesting a link farm or SEO poisoning tactic. The primary external URI, https://jumiwimov.ru/award?keyword=apostila+alem%25C3%25A3o+b%25C3%25A1sico+pdf, is likely a lure to a phishing or malware distribution site. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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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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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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://jumiwimov.ru/award?keyword=apostila+alem%25C3%25A3o+b%25C3%25A1sico+pdf
- https://maselevajaf.weebly.com/uploads/1/3/1/3/131398143/tibiv.pdf
- https://daradila.weebly.com/uploads/1/3/1/4/131438164/757724.pdf
- https://cdn.sqhk.co/xaselavub/RgcmggF/mukelidewiwosumoxi.pdf
- https://cdn.sqhk.co/jujadiziga/idgjawL/56963389034.pdf
- https://nokurujifeseg.weebly.com/uploads/1/3/4/3/134355409/danato.pdf
- https://cdn.sqhk.co/tesigasefaxe/jchfWjf/16098305297.pdf
- https://kutikeso.weebly.com/uploads/1/3/4/4/134490414/3524872.pdf
- https://sofamilases.weebly.com/uploads/1/3/5/4/135401016/02efad2723a102e.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/5fd0908e-b7cf-425f-9993-76c3ac38f6e6/vox_ac30cc2_vs_c2.pdf
- https://s3.amazonaws.com/tetofamuxulil/66887009420.pdf
- https://uploads.strikinglycdn.com/files/ecf30f0e-1f8e-4be8-afb7-807f06e2652a/kunimasupezawitabodago.pdf
- https://s3.amazonaws.com/jozaponi/horton_hatches_the_egg_guided_reading_level.pdf
- https://uploads.strikinglycdn.com/files/e6520ff1-82e2-4142-944b-d7b42ce3134c/usmle_step_1_mock_test_free.pdf
- https://s3.amazonaws.com/gavobawum/apple_wallet_app_ipad.pdf
- https://s3.amazonaws.com/kozewuposoridil/vulekoxix.pdf
- https://uploads.strikinglycdn.com/files/d18cf10b-f539-41bd-9b01-5daad3138bb8/vigadarufaxifejetomape.pdf
- https://s3.amazonaws.com/wivunonovef/93955256944.pdf
- https://uploads.strikinglycdn.com/files/11abad4e-6b45-48a5-b1fe-5146e5965dbb/whirlpool_quiet_partner_3_heating_element.pdf
- https://s3.amazonaws.com/padosumifubobo/92048204268.pdf
- https://uploads.strikinglycdn.com/files/372f0d3f-d129-4644-be85-1ab7340feb7a/the_beginning_of_everything_book_free_download.pdf
- https://uploads.strikinglycdn.com/files/3ee3b0b5-d252-4627-9829-c520cbf5b6a3/how_to_write_an_early_lease_termination_letter.pdf
- https://s3.amazonaws.com/fikuvine/nujakuzanumapukidomezige.pdf
- https://s3.amazonaws.com/tobobowu/60518030355.pdf
- https://s3.amazonaws.com/wukevirenesu/kamuporisuloxazasabakovux.pdf
- https://uploads.strikinglycdn.com/files/00886874-bfa8-4815-b373-5008c468d917/thirty_readings_in_introductory_sociology.pdf
- https://uploads.strikinglycdn.com/files/f2fb6b51-f4d0-4f7c-96d7-40e929972d75/11598605873.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000133ee.binf5b7a36477c089a53d099b256be9432d544756f6cfd952059ac8dfdec318e21e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133EE | 5884 bytes |
font_01_sfnt_off000146b0.bin2736568c1a511aff7e8b8de5b69e2222a32564fb17163a6d991308fa6f97c4fa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x146B0 | 15480 bytes |
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