MALICIOUS
226
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of external links, many hosted on disposable domains, indicative of a link farm designed to distribute malicious content or lead users to phishing sites. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests this PDF might be a precursor to delivering a password-protected archive, a common tactic to bypass security scans. The ML classifier and ClamAV detection strongly support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://vilenefex.ru/strik?utm_term=when+a+company+sells+goods+to+customers+on+credit
- https://dogenirifalalu.weebly.com/uploads/1/3/0/7/130775866/8feab63f62.pdf
- https://lekipavovat.weebly.com/uploads/1/3/4/3/134332936/065f142c90d5d.pdf
- https://static.s123-cdn-static.com/uploads/4484093/normal_5ffc3066c6a54.pdf
- https://gikovasedubum.weebly.com/uploads/1/3/4/5/134507074/lebinakigu.pdf
- http://lelusuje.22web.org/cell_organelles_and_their_functions_chart.pdf
- https://mekapejodefab.weebly.com/uploads/1/3/4/7/134740006/tujadogudasiw_fuxuwibuzetojof_putasabox_rilolajijeke.pdf
- https://nufawufaza.weebly.com/uploads/1/3/0/7/130740177/wezowuren.pdf
- https://cdn-cms.f-static.net/uploads/4455901/normal_6052e128d6065.pdf
- https://cdn-cms.f-static.net/uploads/4489412/normal_602c5ef3a72bb.pdf
- https://static.s123-cdn-static.com/uploads/4498645/normal_5fe075cb7343d.pdf
- http://kopusibujivir.iblogger.org/78560337030.pdf
- http://wosidigelime.iblogger.org/payment_of_bonus_act_1965_in_marathi.pdf
- https://boxatikavizag.weebly.com/uploads/1/3/4/6/134680825/zegub-sosiluvowodi-rafebavererama.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://937a8a2d-b41a-4163-aff8-eda6db263557.filesusr.com/ugd/21e6f2_3b7d6824a0d045e1bb689de038d5b727.pdf?index=true
- https://b24036c1-08f6-4d5b-b8c9-f4c47f26e437.filesusr.com/ugd/ae9acc_42712d1715a74c0a9df5da3f2b0cb10d.pdf?index=true
- https://c81c1a69-aec6-471c-ac34-7a6800eafc69.filesusr.com/ugd/9ef1ea_c42845c7148b4367b22504976fa63f8a.pdf?index=true
- https://6f8cb219-4830-455d-9ced-b55e65700e85.filesusr.com/ugd/fd30ac_d03af4a8e466447e92070b632cbcc09c.pdf?index=true
- http://kodurubakasifi.epizy.com/18183113525.pdf
- https://3d3b31fc-6152-41c7-b1d4-a4af3afcce63.filesusr.com/ugd/3f8d85_4c7f9ace35a843abae25820d813b81d7.pdf?index=true
- http://nizegabimuremiv.rf.gd/data_analysis_tutorialspoint.pdf
- http://rebokomixuxoj.epizy.com/how_to_study_for_ap_us_history_test.pdf
- http://melewurimepuja.rf.gd/alesis_dm6_session_kit_manual.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f00f.bin58f732f29321cc0e5ef61760b80e2bcc0911db793ca95f53f2d8c95c1401a1dc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF00F | 5484 bytes |
font_01_sfnt_off0001028e.bin42ba2d8b090f055621e60be0ad7b33951260aebc9a8bbb175f73a4043abd324c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1028E | 10812 bytes |
font_02_sfnt_off00012769.bin1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12769 | 4324 bytes |
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