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, many pointing to disposable hosting services, indicating a link farm designed to redirect users. The presence of a ClamAV detection for 'Pdf.Phishing.Trojan' and a high ML classifier score further support its malicious nature. The primary attack pattern appears to be leveraging these links for phishing or to serve as a distribution point for further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://jacksth.ru/strik?utm_term=computer+networking+problems+and+solutions+pdf+free+download PDF link annotation
- https://cdn.sqhk.co/xipitufekaru/jONi5OV/nudavunifutopo.pdfIn PDF document text
- http://snegny.com/alphabet_design_wallpaper_freemrs1a.pdfIn PDF document text
- https://xixemoxutosiseg.weebly.com/uploads/1/3/4/4/134473276/vuxilirelega-mufazomewo-doralumo-jasuver.pdfIn PDF document text
- https://pasezarovatif.weebly.com/uploads/1/3/4/8/134858127/f6bbe136b18.pdfIn PDF document text
- https://dufadijikog.weebly.com/uploads/1/3/5/3/135325035/zuniwugudadirig.pdfIn PDF document text
- https://zikenanevo.weebly.com/uploads/1/3/4/5/134589255/742953.pdfIn PDF document text
- https://cdn.sqhk.co/dosakupu/hjwgcFL/92094132011.pdfIn PDF document text
- http://easylearning.space/cien_aos_de_soledad_de_gabriel_garcia_marquez_resumenwfhbf.pdfIn PDF document text
- http://dronextactical.xyz/how_to_use_a_miter_box_to_cut_door_trimv15qn.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459628/normal_606354d64f67c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4415936/normal_6022b20e66ffa.pdfIn PDF document text
- http://republvinb.fun/101040773662fgor.pdfIn PDF document text
- http://atlas-copco.su/atlas_copco_fd30_air_dryer_manualprxvz.pdfIn PDF document text
- https://cdn.sqhk.co/xovikojux/iiif5BJ/farm_pet_rescue.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383801/normal_603512c8d9c0f.pdfIn PDF document text
- https://mawajajapok.weebly.com/uploads/1/3/4/3/134353668/28dfe203ca51b07.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4470038/normal_604e7b2f27d73.pdfIn PDF document text
- https://divewamekavese.weebly.com/uploads/1/3/1/8/131860060/59d7bedfd.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4446494/normal_6002db1074e9b.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/bezegoluzose/96141892351.pdfIn PDF document text
- https://s3.amazonaws.com/tigewibejageju/watufibosodufax.pdfIn PDF document text
- https://s3.amazonaws.com/jajuzasalikirut/margin_of_safety_seth_klarman_price.pdfIn PDF document text
- https://s3.amazonaws.com/vufupu/canon_mf3010_printer_driver_for_xp.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_off0001043b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1043B | 5560 bytes |
SHA-256: 21e2c4df089b1137e6601952a2496294b13e15fbf975b197655202dfe9ce4f78 |
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font_01_sfnt_off0001171d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1171D | 11000 bytes |
SHA-256: 5f66ee983173e11454d1c97f17959aaddbac4b72e2b234f5e01a6eaf58ca7f0d |
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