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 0.9997
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://irlanc.ru/pbw?utm_term=science+checkpoint+book PDF link annotation
- https://static.s123-cdn-static.com/uploads/4459628/normal_5fcc5de8c9949.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4365646/normal_5fee07698e2c0.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4415537/normal_5fee9a046f402.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4453528/normal_6025dc4f50aab.pdfIn PDF document text
- https://ginamelemu.weebly.com/uploads/1/3/4/6/134624442/1851b17164c3681.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377642/normal_5fda224389a5e.pdfIn PDF document text
- https://tawuzipufuk.weebly.com/uploads/1/3/4/7/134707118/1a8218addab658.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/3cad1578-571f-4596-a580-ade2e50c085b/how_to_fix_ice_buildup_in_samsung_refrigerator.pdfIn PDF document text
- http://pevozowo.pbworks.com/f/bojedenezekegini.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7d8d43ad-efbc-48a1-a80f-8f17dbb83bf6/83454749320.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/703521b5-d859-4803-97c3-0e1681ff2eb0/english_grammar_notes.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0b4f5deb-e963-45c2-be51-d392ff590337/research_methods_in_psychology_2nd_american_edition.pdfIn PDF document text
- http://wedezim.pbworks.com/f/after_twenty_years_question_answer.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/16a07441-dee0-4cce-a6b1-eaab1a26d865/youtube_matter_of_trust_lyrics.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3586f016-76af-4e56-b8f0-8797d3495b90/42473568073.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b0343b90-6952-40ca-92c9-48255bcd1428/aprende_ingls_cantando_ed_sheeran.pdfIn PDF document text
- http://nikekuva.pbworks.com/f/how_long_does_it_take_to_get_cpt_certified.pdfIn PDF document text
- http://wefolevemud.pbworks.com/f/tobarusozur.pdfIn PDF document text
- http://nabivebufi.pbworks.com/f/nefaxujugopevored.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/917c9e2b-7394-4fab-b35e-8bca1e7a519f/facebook_business_manager_support.pdfIn PDF document text
- http://risoxef.pbworks.com/f/edipo_rey_y_antigona_libro_completo.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_off0000e44b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE44B | 4812 bytes |
SHA-256: d2b7133284f89066f6f848732af662ce3e255bce12e7f6f11ab00556132bab8e |
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font_01_sfnt_off0000f4ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4AC | 10904 bytes |
SHA-256: 9baddd7472a5136be71ab5e77265a5059140e131677362acfd192d8fef9df7c5 |
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