MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of external links, many hosted on disposable domains, indicating a link farm or SEO manipulation tactic. ClamAV and ML classifiers strongly indicate maliciousness, with a specific detection for Pdf.Phishing.Trojan. The presence of external URIs and the overall structure suggest the document is designed to redirect users to potentially malicious content or phishing sites.
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://nipisod.ru/123?utm_term=blackberry+p9981+os+7.+1 PDF link annotation
- https://cdn.sqhk.co/xanovika/hjcNzje/buvakoseja.pdfIn PDF document text
- https://cdn.sqhk.co/sifilefu/gjUJ4hh/walkthrough_human_simulation_fall_flat_aztec.pdfIn PDF document text
- https://sopuduzebuvagaf.weebly.com/uploads/1/3/0/7/130775825/xukuriji.pdfIn PDF document text
- https://rasaputale.weebly.com/uploads/1/3/5/3/135323831/jojonexubine.pdfIn PDF document text
- https://cdn.sqhk.co/jarixizotib/dXZqPXt/the_real_real_inc_stock_price.pdfIn PDF document text
- https://cdn.sqhk.co/lexijunibul/2DZ1gcO/sozulofefovuvesifizut.pdfIn PDF document text
- https://dojufewuwi.weebly.com/uploads/1/3/4/2/134235401/bonujogux.pdfIn PDF document text
- https://cdn.sqhk.co/weteroliwo/ihegjX9/ear_infection_in_dogs.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://b6c9d0de-81a1-4db9-ab7d-8a95af9e63d6.filesusr.com/ugd/b28ae2_9ce868943f7f4a1f9af9aac2b8a968cd.pdf?index=trueIn PDF document text
- https://0f8fedcd-12c0-4678-86f8-e2bff7269121.filesusr.com/ugd/70e7d4_4e976f6bced448309fb0af0098105ea0.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/vunizi/alphabet_practice_sheets_printable_free.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1880217b-5486-4b4b-906b-84b2c1274cbd/who_invented_electricity_before_benjamin_franklin.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e8456374-6bc3-4c96-be21-a98c3943e90f/juriroluxidupumusogon.pdfIn PDF document text
- https://s3.amazonaws.com/wikurixobelu/89048321150.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/459ee5f6-f4e8-4858-8a01-55c2be5f3984/what_is_the_biggest_mammal_in_the_world.pdfIn PDF document text
- https://s3.amazonaws.com/wolina/61064652210.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2198f59b-5394-43a1-a280-a6f88affd394/carl_rogers_on_becoming_a_person_summary.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/df88acb6-2d66-40d7-aac8-7ab060fba194/gugosijulegemevudaja.pdfIn PDF document text
- https://f8b2de7a-6012-4721-b8f1-df5267d6bb95.filesusr.com/ugd/8ebb60_e42f8b45cac54984a8ab4280cdd43dea.pdf?index=trueIn 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f316.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF316 | 5348 bytes |
SHA-256: 451800c77eb4768deb74e71605ea3799ef38647767eafeabf42aebaa01829c8b |
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font_01_sfnt_off00010560.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10560 | 15968 bytes |
SHA-256: d4cfd23fdfe5c63e44666ac57bbfc1fc6f2b9c020ec7449f0c54b6f93485ca66 |
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font_02_sfnt_off000136a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x136A4 | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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