MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a large number of external links, many pointing to PDF files, suggesting a link farm or redirection mechanism. The primary URL, https://crewmak.ru/pbw, is likely the initial point of contact for the malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9929
Heuristics 5
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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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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://crewmak.ru/pbw?utm_term=respuestas+del+libro+de+matematicas+de+secundaria+segundo+grado+volumen+1 PDF link annotation
- https://static.s123-cdn-static-d.com/uploads/4392661/normal_60b2e460b26f3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380545/normal_60485f672695f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4452618/normal_603eedd02ba77.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421474/normal_5fd2e6f8521b8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485005/normal_6054ceda5b30b.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4488135/normal_5fcf3e7b41ec9.pdfIn PDF document text
- https://jufigewadekuxo.weebly.com/uploads/1/3/1/4/131406441/035b6b3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4419424/normal_60502a35001a0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384299/normal_60190930911cf.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4447497/normal_5fed5260a1b57.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4457561/normal_60609bca2e0e2.pdfIn PDF document text
- https://baginemesurewis.weebly.com/uploads/1/3/1/3/131380932/6a80db36373b7de.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4479916/normal_604ce26da3ad4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4452395/normal_6065aa579804f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374517/normal_605046d0ef0e0.pdfIn PDF document text
- https://static.s123-cdn-static-d.com/uploads/4428335/normal_60b687644870b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4412887/normal_602217778cc61.pdfIn PDF document text
- https://likivaduzizi.weebly.com/uploads/1/3/4/6/134699319/5875247.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4404964/normal_5fc61b86dd2eb.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4408335/normal_60046e3f83908.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409606/normal_5fe84de609206.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/ab2eb7ca-e039-47d4-b510-ecacf280b03a/walmart_black_friday_tcl_50_inch_tv.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/26c9b92f-8140-40d1-938a-a51cc30609cf/samsung_galaxy_tab_s4_tablet_user_manual.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/17298e6b-3e50-44aa-961b-291d316bcec8/how_to_increase_my_height_exercise.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/acaff341-141f-4ac5-99be-168ead9f1751/zipozinesaxomiluxuxu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/08d51c8b-d770-430e-9105-8925c4d5689f/voxojunaluj.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001ad19.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1AD19 | 5532 bytes |
SHA-256: 506f96037b99c62aec8bc45fc05232ca6b5e69b32ef06f37e66c628a6ad57678 |
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font_01_sfnt_off0001bfd3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1BFD3 | 14332 bytes |
SHA-256: d4a2e1f757a04747b7b7c113c16311deed84d1ab663af745a16db6a186e7919a |
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font_02_sfnt_off0001ec2d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1EC2D | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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