MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, identified as a link farm. One of the primary URLs, 'https://drafthe.ru/pbw?utm_term=free+long+division+worksheets+no+remainders', is suspicious and likely leads to a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing or trojan PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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://drafthe.ru/pbw?utm_term=free+long+division+worksheets+no+remainders PDF link annotation
- https://cdn-cms.f-static.net/uploads/4382209/normal_60365ca4e152b.pdfIn PDF document text
- https://wimitefadekox.weebly.com/uploads/1/3/4/5/134586198/rowekiwoj.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4368478/normal_5fef168c6cf5e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4461483/normal_5fefdb70500fe.pdfIn PDF document text
- https://nonufovoda.weebly.com/uploads/1/3/0/7/130775853/sepujiletofurak.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4366331/normal_5ffeadaac56d3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4392864/normal_5fe74c57006d6.pdfIn PDF document text
- https://jasuxazej.weebly.com/uploads/1/3/4/8/134875243/supato.pdfIn PDF document text
- https://fidexirubopuzer.weebly.com/uploads/1/3/2/8/132815065/8ddde37f.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/cc891db5-2150-4ddc-87ba-bf8181dbb495/how_to_answer_interview_question_what_motivates_you_to_do_a_good_job.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fa16c7d8-db82-4f2e-b31b-3ff1c217f4c4/58608380449.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6537b8f1-4ff2-4a33-9ba1-40816a568c47/26663516778.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b8f51221-bc21-4527-9b81-282cf256a43e/rediscover_catholicism_book.pdfIn PDF document text
- http://lekuzax.pbworks.com/f/xojosibaluxirabatutesu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/71536dec-814b-420e-bc07-282ce95422a9/12680366476.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/14de0f0f-5beb-4c94-8d05-76191334ade7/how_to_install_orbit_water_timer.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7a5546bc-06d8-4c7a-995a-02908e870e5e/is_the_dmv_open_in_mississippi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c3c4ba2c-6994-4fc0-af77-3d081f6866c0/paulo_coelho_all_novels_list.pdfIn PDF document text
- http://fevosezew.pbworks.com/w/file/fetch/144475440/96245804183.pdfIn PDF document text
- http://gifavipa.pbworks.com/f/18933061754.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4889e4d4-9fda-49ca-bb8c-0013a8e80d33/100_square_chart_interactive.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/79cd49d5-9faa-49cc-aa8f-5cc34945eeff/88394572152.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_off0000e305.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE305 | 5408 bytes |
SHA-256: 4a76ddb1816bc95ed28c5c3dfc1a7a74e30ca305d4429bd5ee5d5694b2c6fb94 |
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font_01_sfnt_off0000f553.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF553 | 11944 bytes |
SHA-256: 5fab4c1d17a89d3f0eb453fadf91294b703dabfba6b8ae333e43f9131e561912 |
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