MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of external links, many pointing to disposable hosting or suspicious domains, as indicated by the PDF_SEO_LINK_FARM and PDF_SEO_DISPOSABLE_LINK_FARM heuristics. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or distributing further malware. The embedded URLs are the primary indicators of compromise, suggesting a campaign to drive traffic to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://bologen.ru/strik?utm_term=water+margin+sega+genesis PDF link annotation
- https://static.s123-cdn-static.com/uploads/4452152/normal_5ffea13517b94.pdfIn PDF document text
- http://piredvizhnik.com/canon_in_d_violin_sheetsvq64j.pdfIn PDF document text
- http://myfoxing.online/sirusubegenazowerirlk0h9.pdfIn PDF document text
- http://winfreeiphone.xyz/tv_channel_logo_quiz_answersarcui.pdfIn PDF document text
- https://vekerarefatada.weebly.com/uploads/1/3/4/8/134868636/3865447.pdfIn PDF document text
- https://derigibi.weebly.com/uploads/1/3/4/4/134447264/2022456.pdfIn PDF document text
- https://rurawovupotoli.weebly.com/uploads/1/3/4/0/134017211/sominava.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367005/normal_602c1817d031a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4410002/normal_60205b7015a71.pdfIn PDF document text
- http://tonerinkstore.com/printable_hot_air_balloon_coloring_sheetsw2h84.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4388818/normal_5fdfc767efbfc.pdfIn PDF document text
- http://reabook.online/swiss_family_robinson_study_guidevmmy5.pdfIn PDF document text
- https://bimipesetasezi.weebly.com/uploads/1/3/4/0/134017520/4833369.pdfIn PDF document text
- https://wujibinofowe.weebly.com/uploads/1/3/1/3/131383737/xetilabebirokagikawa.pdfIn PDF document text
- https://sajosapisede.weebly.com/uploads/1/3/4/3/134344890/55cf0b093.pdfIn PDF document text
- http://salopkisa.website/suzuki_gsr_600_service_manual_downloe1uzx.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4427267/normal_5ff8291e7e967.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cac3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCAC3 | 4984 bytes |
SHA-256: 7d4613428ce9bce127ad916416422eeb4e76579a5eb47fca2d34368578f2fb38 |
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font_01_sfnt_off0000dba6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBA6 | 1800 bytes |
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620 |
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font_02_sfnt_off0000e433.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE433 | 11108 bytes |
SHA-256: aa1b0f2403ec5687cad0082ef838a25d43278f33aaea644f63d60ea98c583721 |
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font_03_sfnt_off00010a7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A7B | 16340 bytes |
SHA-256: ee8b8f013b6f51ea08ae5b70d5412f202f6a9076b23c75f4a41c6f6118619bdf |
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