MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics indicate it functions as a link farm, containing numerous external links, many hosted on disposable domains, suggesting a phishing or redirection scheme. The embedded URLs and the document's apparent purpose of luring users to download a PDF related to operating systems further support this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://archism.ru/pbw?utm_term=operating+system+deitel+pdf+download PDF link annotation
- https://fatuvubexu.weebly.com/uploads/1/3/4/4/134496757/51699d.pdfIn PDF document text
- https://vimopoferozure.weebly.com/uploads/1/3/4/8/134858925/kegufixafejuli.pdfIn PDF document text
- https://mepefukuwipo.weebly.com/uploads/1/3/4/5/134523025/sidobo.pdfIn PDF document text
- https://poxanada.weebly.com/uploads/1/3/1/4/131483305/2424065.pdfIn PDF document text
- https://kepoxenuranejes.weebly.com/uploads/1/3/4/3/134396716/tukijobugafi.pdfIn PDF document text
- https://zigeginuserepu.weebly.com/uploads/1/3/4/0/134041232/6376506.pdfIn PDF document text
- https://static.s123-cdn-static-d.com/uploads/4389384/normal_60b5c3a021197.pdfIn PDF document text
- https://vokavubibobudew.weebly.com/uploads/1/3/5/3/135316357/3659296.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4427282/normal_5fd094a5a1cf5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4490366/normal_60411d0a9c2ec.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://sofutikajen.pbworks.com/f/dr_joe_dispenza_wikipedia_magyarul.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/80de6a70-7e2c-41e0-92db-0db19810f58c/cyberpower_1500va_wont_turn_on.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/79eac08f-f339-4e70-921d-20ee8a5517d5/best_bottom_loading_water_dispenser_2020.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/73b79b70-77d5-4ccc-9e04-7ce446e365f6/the_heir_kiera_cass_online_free.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/37e09428-c789-4814-98a5-e239a7da8d1e/easeus_data_recovery_wizard_13.2_crack__license_code.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/65e29d92-1add-4e03-9f4a-e9dbf9cc117a/30349306443.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/663d4deb-1702-4dd1-8f56-97678329bc74/sojuwe.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1922d39b-168f-438f-86be-fd40f8f134f1/80951614882.pdfIn PDF document text
- http://kakewizajupe.pbworks.com/f/velitu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1ceffe20-352c-4bbb-8e20-1d29dec63496/89008269203.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_off0000f5ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5EE | 5580 bytes |
SHA-256: 9175b0149997a3b64248afb9d862fcfadb4dfbc0c70fdb02f3ddc945a6b0c6ea |
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font_01_sfnt_off000108e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108E4 | 10708 bytes |
SHA-256: 773c8c69a3dacd82d3d59f3bb078590b81268d8233c52cb27aac3e22b466f78b |
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