MALICIOUS
226
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a fake browser/software-install lure. 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 0.9998
Heuristics 7
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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://crophysi.ru/strik?utm_term=sql+guided+project+coursera PDF link annotation
- https://cdn.sqhk.co/fefamuve/cxWssYh/ice_scream_horror_neighborhood_2.pdfIn PDF document text
- https://cdn.sqhk.co/xenumobavun/rhaSZsz/slam_dunk_festival_2015_lineup.pdfIn PDF document text
- https://cdn.sqhk.co/tuwagezo/RBOjz1P/balloon_rocket_experiment_worksheet.pdfIn PDF document text
- https://romenazojojeles.weebly.com/uploads/1/3/0/7/130775884/gilimafilom.pdfIn PDF document text
- https://cdn.sqhk.co/gekakisoduvo/jcjf4gc/37357001577.pdfIn PDF document text
- http://moscowflowers.shop/sipaxaxawekimufefmog2.pdfIn PDF document text
- https://cdn.sqhk.co/vipikunowi/gEhdjap/lucky_draw_bingo_game.pdfIn PDF document text
- http://useraisins.pro/why_does_yeast_respire384wz.pdfIn PDF document text
- https://tizevilujiv.weebly.com/uploads/1/3/1/4/131406709/bunojamotumoje_mudosozajune.pdfIn PDF document text
- https://fasadosuz.weebly.com/uploads/1/3/4/0/134012998/zazaposadutel.pdfIn PDF document text
- http://paganel.world/what_are_the_disadvantages_of_coal_powero9rzq.pdfIn PDF document text
- https://cdn.sqhk.co/pofadugilip/idwuvgc/download_toca_life_after_school_mod_apk.pdfIn PDF document text
- https://buwuxebukiz.weebly.com/uploads/1/3/1/6/131606134/kidobugefepaga.pdfIn PDF document text
- https://nepufetok.weebly.com/uploads/1/3/1/4/131438640/numufupavi.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://f7e05ffc-afae-4d19-be15-7e9c659e5e5f.filesusr.com/ugd/72f62b_96b34a8547c64afcb1090888a631f3af.pdf?index=trueIn PDF document text
- https://e86c6366-0652-46cb-9e1f-5633a133dba9.filesusr.com/ugd/510a18_c91d69e7532342dea60320e9eb389f75.pdf?index=trueIn PDF document text
- https://87098103-4d08-48bb-90a6-807b0ef734b2.filesusr.com/ugd/1f49de_ea24c04f257f43539b7dffe6331095f6.pdf?index=trueIn PDF document text
- https://770ad53b-b55e-4e58-b1eb-3709f41304f7.filesusr.com/ugd/98e298_a6bee376d4c74fa3baeadb9267a0ef0b.pdf?index=trueIn PDF document text
- https://9d03b195-5c34-4993-8a23-519dd2bddccd.filesusr.com/ugd/9ac058_b5f97866ebb5465f859e975a3462b2f9.pdf?index=trueIn PDF document text
- https://ebba3e40-d49f-4cc8-b137-373bb1124918.filesusr.com/ugd/384ea4_bba91ea87cd042dcbd2d1faf7cdd1fa8.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_off0000effe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFFE | 5324 bytes |
SHA-256: a4cdc89e50de140fb786028396ebda24faad58a78a9c8b44303282fd0da2df88 |
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font_01_sfnt_off00010220.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10220 | 10676 bytes |
SHA-256: d97d252176ed8f356a9a9ba559463aea00d151649ce69d887e5bbe7533145039 |
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font_02_sfnt_off0001267c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1267C | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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