MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was identified as malicious by multiple heuristics and a machine learning classifier, specifically flagged as a phishing trojan. It functions as a link farm, containing numerous embedded URLs that redirect users to external content. One of these URLs, 'https://dafemum.ru/wix?keyword=weaknesses+of+the+articles+of+confederation+worksheet+pdf', is known to lead to malicious redirector infrastructure, indicating a phishing or malware distribution attempt.
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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://dafemum.ru/wix?keyword=weaknesses+of+the+articles+of+confederation+worksheet+pdf In PDF document text
- https://cdn.sqhk.co/xivovido/h17a0fl/84310394439.pdfIn PDF document text
- https://cdn.sqhk.co/remonupode/hvIgihc/wejiz.pdfIn PDF document text
- https://cdn.sqhk.co/juzogimuju/ifhhpmm/miwetaxizepamavojer.pdfIn PDF document text
- https://cdn.sqhk.co/pafatewodoju/hbcgeKw/frontiere_europe_ouverte_coronavirus.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/6a033816-17fb-426d-808d-66a807052331/72430658404.pdfIn PDF document text
- https://71f68c9c-1037-483c-a0ca-f268b7ddd3c8.filesusr.com/ugd/87fdc7_efb977aa684c4e7f8a8f2b96d9e1465a.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/6876da32-a2a5-40e9-bdfd-7326e75101c2/fupaxusok.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/adcd13c0-5222-499b-bc8e-a626c6910e34/30380112466.pdfIn PDF document text
- http://lijomoxanegug.rf.gd/midnight_sun_film_deutsch_netflix.pdfIn PDF document text
- https://9aef9be9-4304-4ec6-b02b-ded1eabc5d1b.filesusr.com/ugd/a571b8_1841800f0fa44f3d918c3f1d2f0a3fc1.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/556ba593-c1b9-4fac-ba35-715d6be1bf2f/where_did_islam_start_in_africa.pdfIn PDF document text
- http://vufigenetusanu.epizy.com/vuremiwesidizojapo.pdfIn PDF document text
- https://s3.amazonaws.com/resixexi/report_buckeye_cable_outage.pdfIn PDF document text
- http://lizuruvabeg.epizy.com/nios_assignment_format.pdfIn PDF document text
- https://s3.amazonaws.com/ximupuv/nefusesoverubifarakogano.pdfIn PDF document text
- https://923a8ca3-316b-4844-b38f-9bc955ad4852.filesusr.com/ugd/312e0e_28414b0ed42749bbbdaac73ad1e1cd4f.pdf?index=trueIn PDF document text
- https://9cf5cc10-3c2e-4e30-ae6b-73ed7beed88a.filesusr.com/ugd/5c2b46_afe27838b2f04ad5b7d21e05d1bd233e.pdf?index=trueIn PDF document text
- http://letulirabe.epizy.com/wpf_combobox_controltemplate.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_off0000ef5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF5E | 5412 bytes |
SHA-256: 417e1cf88a8ff693e58946edff3ec2e515967fd270cfbce8404172da593459be |
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font_01_sfnt_off000101e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101E3 | 11248 bytes |
SHA-256: e90f3a1496378861d09eec8607dee65813bbbc2b014057f6db8be917720adbe5 |
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