MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many pointing to disposable hosting, suggesting it functions as a link farm or phishing lure. The document body, though heavily obfuscated, contains metadata related to 'Spanish present tense exercises' and the wkhtmltopdf tool, likely serving as a deceptive pretext to encourage users to click the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://coretry.ru/pbw?utm_term=spanish+present+tense+exercises PDF link annotation
- https://cdn-cms.f-static.net/uploads/4393641/normal_5fd6520c15f2e.pdfIn PDF document text
- https://kovipokuvukos.weebly.com/uploads/1/3/4/4/134497495/212806573f2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4490920/normal_5fd798f6adb61.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4419629/normal_601aa85c35cfb.pdfIn PDF document text
- https://fineruliji.weebly.com/uploads/1/3/4/3/134313455/b37ea117.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485587/normal_6061fa72d4444.pdfIn PDF document text
- https://dumerozum.weebly.com/uploads/1/3/4/6/134611270/revifimipaxibi.pdfIn PDF document text
- https://vowomupow.weebly.com/uploads/1/3/4/8/134846305/lurorixiza-pegab-fugoxikuj-pedijijubuzu.pdfIn PDF document text
- https://galebekamabe.weebly.com/uploads/1/3/4/3/134305591/9591569.pdfIn PDF document text
- https://guzesunidami.weebly.com/uploads/1/3/0/8/130873942/7765793.pdfIn PDF document text
- https://daliroxemonove.weebly.com/uploads/1/3/0/7/130775241/d33f40b25848ee0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377909/normal_606e47289a745.pdfIn PDF document text
- https://kepinofex.weebly.com/uploads/1/3/4/0/134017679/bejob.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://gaguwufajij.pbworks.com/f/92530867654.pdfIn PDF document text
- http://gogoporiwo.pbworks.com/f/hack_mlive_unlock_room.pdfIn PDF document text
- http://bofamawetodo.pbworks.com/w/file/fetch/144633261/43000437377.pdfIn PDF document text
- http://mukibilevejo.pbworks.com/f/software_raid_mac_os_x_el_capitan_dmg_bootable_usb.pdfIn PDF document text
- http://farejutotej.pbworks.com/f/zolaluxamapinidof.pdfIn PDF document text
- http://jolunatimavu.pbworks.com/w/file/fetch/144505698/a_court_of_mist_and_fury_series_in_order.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_off0000d361.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD361 | 5160 bytes |
SHA-256: b3adc37c42ddc1ac1841cb9e2e99e3d9a79e4cf1d8d8bd21e6c6a2e65fa1de4f |
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font_01_sfnt_off0000e4e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4E9 | 11852 bytes |
SHA-256: 4c11f75c627b079c005f6f5f7693f20b617adcd72089d1bef6bd0fc7e926ecb8 |
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