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 0.9967
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/award?keyword=university+physics+with+modern+physics+with+masteringphysics+13th+edition+pdf PDF link annotation
- https://cdn.sqhk.co/wufevinek/IjaigSO/severe_ear_infection_in_adults_treatment.pdfIn PDF document text
- https://cdn.sqhk.co/ninasodivofi/gc6iajj/zulefuvuwapomozatade.pdfIn PDF document text
- https://cdn.sqhk.co/zizenozi/zihdhh1/arkansas_all_star_basketball_game_2019.pdfIn PDF document text
- https://cdn.sqhk.co/vutexexukus/ihihgg6/66594382414.pdfIn PDF document text
- https://cdn.sqhk.co/wapadofiwe/bVgcghs/38159475564.pdfIn PDF document text
- http://menedowu.iblogger.org/76036760051.pdfIn PDF document text
- https://cdn.sqhk.co/xujurovemu/ih0Mjfk/donkey_kong_arcade_box_art.pdfIn PDF document text
- https://cdn.sqhk.co/jaguwubax/hdG4gdu/mujaxuxokep.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://zexubadisaki.rf.gd/amazing_frog_mobile_android.pdfIn PDF document text
- http://duliwijedij.rf.gd/59585416729.pdfIn PDF document text
- http://pekoguwomigurup.epizy.com/numufob.pdfIn PDF document text
- http://zefesuk.epizy.com/xoketanufijidize.pdfIn PDF document text
- https://35b1a599-9f45-4897-82ce-59a931fc5495.filesusr.com/ugd/daca0d_86c3c4023d194f71a934cce6edbb9ddc.pdf?index=trueIn PDF document text
- https://a8fdb364-3865-4521-a36b-e12f4de7752f.filesusr.com/ugd/e20637_930c26a1bbd34fee9cb54558d1b75339.pdf?index=trueIn PDF document text
- https://850a36a1-966c-46c3-86ed-e15bcb5778a7.filesusr.com/ugd/ede58b_e65dee4efb2d48be9b2af066c94ced0e.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/wuwabobujasivor/sezosimo.pdfIn PDF document text
- http://vudujufilax.epizy.com/gexifisep.pdfIn PDF document text
- http://vutuzepen.epizy.com/samsung_nu7100_43_user_manual.pdfIn PDF document text
- https://s3.amazonaws.com/mejifavo/jawul.pdfIn PDF document text
- https://11f44e1d-c86f-4be6-baa1-90970e7c24f5.filesusr.com/ugd/a298ce_2529d4b7df7b4a6e962847868385f16b.pdf?index=trueIn PDF document text
- http://xewepipesu.epizy.com/wemudekusafugixop.pdfIn PDF document text
- https://2ffa788b-df2f-461f-b9c5-573bec542745.filesusr.com/ugd/374ce0_5eb4abca03c843fdb8259294647af174.pdf?index=trueIn PDF document text
- http://zabamaxe.rf.gd/67641528669.pdfIn PDF document text
- http://gubodasitonobu.epizy.com/bravais_lattice.pdfIn PDF document text
- https://s3.amazonaws.com/gupojakami/nigatuweloxolemakunubob.pdfIn PDF document text
- https://s3.amazonaws.com/zidosozawok/lonoxaxamopoximif.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_off0000f85c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF85C | 5996 bytes |
SHA-256: 7986aef81d85827ebfe989677fc608f0acea00cb7a1d664da5cd6deacac35d2e |
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font_01_sfnt_off00010cc8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CC8 | 11840 bytes |
SHA-256: a0127c65c976b9e38bc01c94111bbd05bf3ae780bd8a685d176c2a3d812d8959 |
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