MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9979
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://synerhu.ru/pbw?utm_term=formation+of+sulphate+ion PDF link annotation
- https://cdn-cms.f-static.net/uploads/4426423/normal_60bfc1657a2c3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459482/normal_6022af3092e4d.pdfIn PDF document text
- https://xinuluparos.weebly.com/uploads/1/3/0/9/130969110/pazupo.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4381738/normal_60053cf987d03.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450338/normal_60b815142f327.pdfIn PDF document text
- https://kilutiwoxit.weebly.com/uploads/1/3/1/6/131636983/wufavubixefona.pdfIn PDF document text
- https://patokepejiven.weebly.com/uploads/1/3/4/7/134706466/378660.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4467577/normal_6018d551ebfdc.pdfIn PDF document text
- https://nafufarub.weebly.com/uploads/1/3/4/2/134266214/3a6f64.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fevuxowina.pbworks.com/f/second_grade_grade_2_reading_comprehension_worksheets.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5affc40d-a489-40e4-b10a-8f5e2a21c901/a_fine_balance_book_amazon.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/41831fd0-9808-443b-8de5-6d50b0fad2e3/excel_vba_arraylist_add_object.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e10a4f0a-aa6f-4d8f-9172-5e5d0ece0d5e/how_to_change_primer_bulb_ryobi_chainsaw.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4a9409ad-b68c-4f6e-a6ad-677e068a7b8d/176739388.pdfIn PDF document text
- http://metudebebi.pbworks.com/f/75229995901.pdfIn PDF document text
- http://fepewuwakow.pbworks.com/f/49234420623.pdfIn PDF document text
- http://nosiravuga.pbworks.com/f/33438387165.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/51ef2be5-da7c-4756-90f4-b250ae0e295a/oracle_sql_decode_in_where_clause.pdfIn PDF document text
- http://pugaxigodaka.pbworks.com/f/21915982964.pdfIn PDF document text
- http://moletose.pbworks.com/f/72952177738.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d45a35b7-e1cd-435f-931f-eb95702fbbae/best_push_pull_3_day_split.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/41030168-b84a-4b3a-9c69-bb28e1dd2d3a/54420441388.pdfIn PDF document text
- http://xumefosux.pbworks.com/w/file/fetch/144579678/xoloburaxeziv.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_off000105d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105D4 | 5096 bytes |
SHA-256: 756ec41b803e2e1e3f77c3e90a5098da368bd072d74cb37d0e232c28ba212032 |
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font_01_sfnt_off000116fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116FD | 12000 bytes |
SHA-256: 5aaccaf1c64498689765955dc1ae4eac7995ffbea367c513e477ab4301ae1fec |
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