MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains a large number of external links, many hosted on disposable domains, characteristic of link farms or phishing lures. The document body is heavily obfuscated, preventing a clear understanding of its specific content, but the overall structure points to a malicious distribution mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://maypoin.ru/award?keyword=acute+respiratory+distress+syndrome+nejm+2020+pdf PDF link annotation
- https://cdn.sqhk.co/temejikowewa/cgdifV4/45149291767.pdfIn PDF document text
- https://cdn.sqhk.co/girolivudafo/iuuijBQ/dakeborevusudifukajovalu.pdfIn PDF document text
- http://tipofeliluget.medianewsonline.com/67266412562.pdfIn PDF document text
- https://cdn.sqhk.co/pojuzijix/TM0hcjb/red_alert_2_mods_install.pdfIn PDF document text
- https://kefexogutifega.weebly.com/uploads/1/3/5/3/135309882/bavunerumenuzim.pdfIn PDF document text
- http://moxilekulina.getenjoyment.net/38597298115.pdfIn PDF document text
- http://sopisafexuj.sportsontheweb.net/feudalismo_capitalismo_y_socialismo.pdfIn PDF document text
- https://gipenozup.weebly.com/uploads/1/3/1/0/131070487/123625.pdfIn PDF document text
- https://cdn.sqhk.co/gizadomoto/7jfMhhw/terraforming_mars_prelude_expansion.pdfIn PDF document text
- https://cdn.sqhk.co/jerivudofin/htjA2lT/spelling_and_grammar_word_not_working.pdfIn PDF document text
- https://fadoxidibeja.weebly.com/uploads/1/3/2/6/132695582/jifawin.pdfIn PDF document text
- https://cdn.sqhk.co/sovanoniwuva/eggidrD/the_time_traveler_s_wife_streaming_sub_indo.pdfIn PDF document text
- https://dumerozum.weebly.com/uploads/1/3/4/6/134611270/5760727.pdfIn PDF document text
- https://darizifipofoluw.weebly.com/uploads/1/3/2/8/132815181/zeduxewesolog-zizida-mobipewus.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/39782964-872b-4101-b2b2-c988b8c02e31/tibumu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/114eb5a3-7616-4509-8bfd-136141ec3d7d/83907660212.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/089fdb63-8336-4fb1-9d07-f72b1fbf1d69/forbidden_tabitha_suzuma_final.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8a442175-6ec6-4898-9133-d59e2cd72633/71363195997.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8c7047aa-e689-43a0-a0ae-2107a48cb625/2020_american_revolution_42v.pdfIn PDF document text
- http://xakagigoneliv.myartsonline.com/9696088290.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cc258300-e680-4fbc-92fa-2d9b766cec7f/fipadivikegikatupuge.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_off0000ff00.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF00 | 5712 bytes |
SHA-256: a92ae23f84b8eb3bb58e0dbfa2b4e885c931b2125302124519df47375abb06f1 |
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font_01_sfnt_off00011272.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11272 | 11332 bytes |
SHA-256: ce5bd1eb0c2213b2083e6048d1ac2e239e0d57de1789c3266b1289f60a34e57e |
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