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 0.9995
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://krisoc.ru/pbw?utm_term=biography+reading+comprehension+pdf PDF link annotation
- https://static.s123-cdn-static.com/uploads/4494166/normal_5fdd33fdb21bf.pdfIn PDF document text
- https://wopamogifit.weebly.com/uploads/1/3/4/3/134341426/losuxuwati.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476578/normal_605b9597813b6.pdfIn PDF document text
- https://palajuwasodix.weebly.com/uploads/1/3/2/8/132815908/5f0f5e7f.pdfIn PDF document text
- https://roluwisotem.weebly.com/uploads/1/3/4/3/134368144/61e978c99d3b.pdfIn PDF document text
- https://fusazalokedukek.weebly.com/uploads/1/3/4/7/134729088/9957355.pdfIn PDF document text
- https://bigififipajug.weebly.com/uploads/1/3/4/7/134709095/gojiworeri_funiwudi_tizenorizi_levoluva.pdfIn PDF document text
- https://mowoxesabed.weebly.com/uploads/1/3/4/5/134594013/7663526.pdfIn PDF document text
- https://musevurimimurom.weebly.com/uploads/1/3/4/7/134711136/siruvuda.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4427809/normal_600984d508402.pdfIn PDF document text
- https://woralolur.weebly.com/uploads/1/3/4/3/134359953/34699.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371790/normal_5fe7d99ae7022.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://bopelijexuf.pbworks.com/f/36743925188.pdfIn PDF document text
- http://zepupifob.pbworks.com/w/file/fetch/144426084/how_to_find_average_speed_in_physics.pdfIn PDF document text
- http://vomuseteweto.pbworks.com/f/lemon_icebox_pie_without_eggs.pdfIn PDF document text
- http://fisakujimet.pbworks.com/w/file/fetch/145098780/carrom_pool_hacked_version.pdfIn PDF document text
- http://tukufidanega.pbworks.com/w/file/fetch/144851430/45535185644.pdfIn PDF document text
- http://sapagujedok.pbworks.com/w/file/fetch/144600507/circuit_diagram_of_semi_automatic_washing_machine.pdfIn PDF document text
- http://fevuxowina.pbworks.com/w/file/fetch/144567795/precious_blood_devotion_prayer_book.pdfIn PDF document text
- http://funasazixi.pbworks.com/f/26027783220.pdfIn PDF document text
- http://supatibu.pbworks.com/f/free_fifa_points_generator_fifa_21.pdfIn PDF document text
- http://rasovuxosew.pbworks.com/w/file/fetch/144666177/71704607327.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_off0000f066.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF066 | 5688 bytes |
SHA-256: 36a77895a026a8d65517abc6e319f461eea0f025b00b67087433ad136cf95667 |
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font_01_sfnt_off000103a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103A1 | 10412 bytes |
SHA-256: c2f7519c91340e8c3c7414c5b83f4b991828336bc5a09e485fe0d502199773cb |
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