MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a large number of external links, many pointing to disposable domains, forming a link farm. The primary malicious activity appears to be redirecting users to a network of SEO-optimized PDF documents, likely to serve malicious content or facilitate further compromise. No scripts were extracted, and the document body was heavily obfuscated.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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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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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://botokaw.ru/wix?keyword=kdd+2020+proceedings PDF link annotation
- https://gononazenikemad.weebly.com/uploads/1/3/4/4/134482012/lupudoratututegowogu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4414500/normal_6023c79449e58.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4373986/normal_5fe77337e3e3d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4410448/normal_5fe60d638e3e4.pdfIn PDF document text
- https://tuvaxijilitug.weebly.com/uploads/1/3/4/6/134668501/gisaxozabe-xazekoziwu-biziv.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370052/normal_5fea3050761b7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4472204/normal_60311158a1e21.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374372/normal_602809a4de2e9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4446286/normal_603fa497d2bac.pdfIn PDF document text
- http://newoxoxi.mywebcommunity.org/rodevev.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4496816/normal_60397edc4417b.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/8fd21e31-ba84-4461-b52f-e62fc726ff1f/coleman_propane_furnace_for_mobile_home.pdfIn PDF document text
- https://12a3aa02-022d-4218-8efb-90aa4388683d.filesusr.com/ugd/6dfd9b_848f2249aed74d83ba41df0d0d2bbef2.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/d343dbc9-58e8-4c6f-aa6a-fa5f67a53e1f/4345169235.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c68f01e3-6f1a-436f-add3-6d74a9a38fab/is_james_allen_a_good_place_to_buy_diamonds.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/82e00f85-876d-4396-98b6-39a5c16ad05b/how_to_enable_local_area_connection_in_windows_10.pdfIn PDF document text
- https://c06d174a-caca-4ab2-b5a0-4525cd3135d4.filesusr.com/ugd/856cea_3dd89dad9a4146ceb5bb009fae06f4ec.pdf?index=trueIn PDF document text
- http://tiwatimab.atwebpages.com/coway_ap-1512hh_hepa_air_purifier_reviews.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/27c0cb2e-42d1-4255-8ee5-63f60efd8fc4/best_logo_design_software_for_pc_free_download.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_off0000ea7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA7B | 5244 bytes |
SHA-256: 1507298da821cc1dce8c87920710f863a704c9f903138909e1a02c6a597186c8 |
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font_01_sfnt_off0000fc6e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC6E | 11028 bytes |
SHA-256: adb7765b01fcf415cfc4373fb27874327f0c13583a3375444ec356d294d14e82 |
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