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 pointing to other PDF files hosted on various domains, many of which appear to be disposable. This behavior is characteristic of a link farm designed to distribute malicious content or conduct phishing attacks. The ML classifier and ClamAV detection strongly indicate malicious intent.
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://cdn.sqhk.co/pemoxeriko/fjdhdvL/wedezaxupof.pdf In PDF document text
- https://cdn.sqhk.co/zekafomaze/ijMSBHa/judijawoxifaremaresix.pdfIn PDF document text
- http://geesecam.com/ninemebewavivovedazizaramv8a.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4453563/normal_5feb0690bb996.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4366632/normal_5fc920f3a52ec.pdfIn PDF document text
- http://svoytrylend.xyz/vuredagenusisujezapexetan79j11.pdfIn PDF document text
- https://cdn.sqhk.co/josedinis/hgjhEjf/cs_go_crashz_crosshair_generator_v2.pdfIn PDF document text
- https://cdn.sqhk.co/satidaruxami/XUhdjj8/quicksort_stack_overflow_error_java.pdfIn PDF document text
- https://cdn.sqhk.co/xewafazuk/dDhajgn/carpet_cleaner_solution_near_me.pdfIn PDF document text
- https://cdn.sqhk.co/fujikapoji/fibi6ij/ipl_cricket_match_live_video_tamil.pdfIn PDF document text
- https://cdn.sqhk.co/wefegiwezon/gwjjCGo/subchorionic_hematoma_treatment_guidelines.pdfIn PDF document text
- https://cdn.sqhk.co/bewewojiwo/v4BCbgi/flashlight_gloves_for_sale.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4495686/normal_605a1d040bb7a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421333/normal_60374deeb38d9.pdfIn PDF document text
- http://idealica-italiaufficiale.site/psicologia_de_la_posible_evolucion_del_hombrel1ito.pdfIn PDF document text
- https://cdn.sqhk.co/movumatoz/r8W5ieL/88741746697.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://feedproxy.google.com/~r/wb/ENAH/~3/KjdSuPfhPRY/wb?keyword=from%20the%20mixed%20up%20files%20of%20mrs.%20basil%20e.%20frankweiler%20comprehension%20testPDF link annotation
- https://41d9b059-0b17-466b-96e6-f31a3f3e9b19.filesusr.com/ugd/f1ead9_f8349d997ea84ed38eeb06381afdd85e.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/kewakuko/tiferivugulime.pdfIn PDF document text
- https://s3.amazonaws.com/vukumesoj/chauvin_arnoux_6250_manual.pdfIn PDF document text
- https://c63ca81c-6df4-4ec3-bc2e-8508f29a6879.filesusr.com/ugd/d48fe3_e36785834ff84a5bb5a8d030db4e39b9.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/fosagoba/warframe_excalibur_weapons_guide_2018.pdfIn PDF document text
- https://8dea6f00-b35b-4e5f-9f5e-01d9eb130a9a.filesusr.com/ugd/6a8da5_626d099ddfeb46f8a11c379bf3e36f2f.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ef8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF8A | 5744 bytes |
SHA-256: efa99505044aadf0ca5b02a8d5c276f8ce3ad4196b3d2b28add62bbf5893e45f |
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font_01_sfnt_off00010302.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10302 | 10424 bytes |
SHA-256: e16cb79d29ef788bfc75b42dc265c6ac46d18087f658f2a467823226745c44de |
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