MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous external URLs, with a primary URL pointing to 'bologen.ru'. The presence of many links on disposable hosting suggests an attempt to obscure the ultimate destination or to distribute various malicious payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 6
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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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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://bologen.ru/wix?keyword=%25D8%25AE%25D8%25B1%25D9%258A%25D8%25B7%25D8%25A9+%25D8%25A7%25D9%2584%25D8%25B9%25D8%25A7%25D9%2584%25D9%2585+%25D8%25A7%25D9%2584%25D8%25B9%25D8%25B1%25D8%25A8%25D9%258A+%25D8%25B5%25D9%2585%25D8%25A7%25D8%25A1
- http://bumasujofoj.getenjoyment.net/vuwaxuwukon.pdf
- http://tegor.xyz/capitulo_1b_avsr_1b-_1_answers9fjug.pdf
- http://8bitbeardsco.com/non_formal_education_meaning_in_kannadads1nv.pdf
- https://barefofu.weebly.com/uploads/1/3/4/4/134492989/58fa573145939.pdf
- https://rukazoxet.weebly.com/uploads/1/3/4/0/134040508/8e79b6a.pdf
- https://gotedimonov.weebly.com/uploads/1/3/4/7/134761190/63f52814bfc56e.pdf
- http://dorulezebum.sportsontheweb.net/probability_and_statistics_textbook_slader.pdf
- http://fulokixowo.scienceontheweb.net/96470344318.pdf
- http://baderakavakuf.22web.org/dawobaje.pdf
- https://lubugidiwunop.weebly.com/uploads/1/3/4/3/134355153/bac6894.pdf
- http://tetoxukipim.getenjoyment.net/mubaxupumuwalugaga.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://5548a280-a194-4776-8019-0e256783c1fa.filesusr.com/ugd/f2c1dc_7efc6159d17a4a26906a8ad500d62fa3.pdf?index=true
- http://pavafisufopu.myartsonline.com/sciatica_bothersomeness_index.pdf
- https://43fe4710-460a-4ad3-90dc-2dd795c51528.filesusr.com/ugd/a32c20_070a917d1f6041feadb234285274bd31.pdf?index=true
- https://fdb4f28e-c637-431f-967d-457feef73efb.filesusr.com/ugd/cf5aa9_dadd0a3ef26c4fdb8b38b463fa1e5cdc.pdf?index=true
- https://8c1dc56a-a131-4b43-acff-3635b9115217.filesusr.com/ugd/90423f_f7c1c8d0f1d142e59950e49b5fd5ba48.pdf?index=true
- http://murawarex.rf.gd/financial_function_in_excel_2020_with_example.pdf
- https://18cceff7-6d50-42ec-9d85-67184b61345e.filesusr.com/ugd/8c2e83_cb3349fdba874f20ab08f73b37187974.pdf?index=true
- https://a35aa970-3e4e-4c20-be1f-53d10001bce9.filesusr.com/ugd/af4e73_321d803bbea54616814e6de931156415.pdf?index=true
- https://e61e9f85-32c5-4861-9fd4-b89109084c35.filesusr.com/ugd/2e4eb4_88427308af75498db9e11f8b0499799f.pdf?index=true
- http://pavebutom.epizy.com/convert_to_word_big_file_online.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://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
- http://scripts.sil.org/OFL
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_005_off000162de.binac429aae08cd01794ce369f47b8b169092774645ba89dcf05ffe4be811085908 |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x162DE | 31140 bytes |
font_00_sfnt_off000119d3.bin60a2d6429503f7a4ddaf98851b2b9757a5da54dd45bab0a2aed837b7042708be |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119D3 | 4068 bytes |
font_01_sfnt_off000127b2.bined770e53a184153c2bf13943e04429bfe5491b337897d40ff75bcb3b82e695a5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127B2 | 9356 bytes |
font_02_sfnt_off000147cf.bincb8ae71e9f754feac730d88d1d2e84bdfe7922bc54ed312048dec25dc81070e2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x147CF | 17820 bytes |
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