MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to malicious content. The primary URL, 'https://krisoc.ru/pbw?utm_term=download+idm+2021+full+crack', explicitly mentions downloading cracked software, a common lure for malware distribution. While no scripts were extracted, the PDF structure and heuristics strongly suggest it's a phishing or malware distribution document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://krisoc.ru/pbw?utm_term=download+idm+2021+full+crack PDF link annotation
- https://diwifiburu.weebly.com/uploads/1/3/4/8/134871147/lalolezatugit.pdfIn PDF document text
- https://galebekamabe.weebly.com/uploads/1/3/4/3/134305591/siwirizavesig.pdfIn PDF document text
- https://pozugawejebi.weebly.com/uploads/1/3/4/6/134610366/5377793.pdfIn PDF document text
- https://galomitazede.weebly.com/uploads/1/3/4/7/134748449/c39b8607f99.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/1c4ab0b1-982d-4080-bdf7-8228fcf68975/5728612860.pdfIn PDF document text
- http://nagaxop.pbworks.com/f/howls_moving_castle_piano_sheet_music_kyle_landry.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9a6b1aec-f553-4b8d-b494-dc8c4b2d5b2a/what_are_the_five_books_of_the_bible_called.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6a17e300-29fc-47ec-a7b5-2cd95c66e043/what_is_a_financial_balance_sheet.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d464b565-7f69-49b8-924d-85bd44fca78c/fugisobilukujov.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/26e9d3bb-9cf9-40a8-bbfc-68ba4507ad89/mawosagogogabexepopano.pdfIn PDF document text
- http://lekipirunezi.pbworks.com/w/file/fetch/144696975/93948061709.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c6e8ddd5-111b-4263-b954-b87a1ffaa6a4/31953069036.pdfIn PDF document text
- http://midevodimu.pbworks.com/f/96618316258.pdfIn PDF document text
- http://lopofemusun.pbworks.com/w/file/fetch/145027425/97670592303.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f20b2681-3490-48a1-a45a-e761fca0fe74/what_comes_in_the_5_nacho_box_at_taco_bell.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0a4c0cef-a3cf-41ae-8dbc-1090670f5440/94796892780.pdfIn PDF document text
- http://fatakalewene.pbworks.com/f/jogos_vorazes_1_filme_completo_dublado_online_gratis.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ec13.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC13 | 5152 bytes |
SHA-256: 68b99e9cb3dae51918e77e2b6a1231b1a748123dfe01abd2f337875728bff92b |
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font_01_sfnt_off0000fd92.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD92 | 10748 bytes |
SHA-256: 4d50bd46c1ee907ccb8bcea89c83fdff2f51cb6a0f4e29b842438fe4879795d0 |
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font_02_sfnt_off00012279.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12279 | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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