MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The file contains numerous embedded URLs pointing to other PDF files hosted on various domains, suggesting a link farm designed to obscure the ultimate destination. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating a strategy of using disposable hosting for a large number of links. While no scripts were explicitly extracted, the nature of the embedded URLs and the heuristics suggest a phishing or malware distribution attempt, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9932
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 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 http://orderbestwings.com/uploads/files/50918778897.pdf In PDF document text
- http://kieryk.pl/img/userfiles/file/35973611586.pdfIn PDF document text
- http://plantessentialoil.com/upload/files/16525458120.pdfIn PDF document text
- https://mma-montessori.com/admin/ckfinder/userfiles/files/repudofitosidefixogomive.pdfIn PDF document text
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135680d627a5---zomupugo.pdfIn PDF document text
- http://doktor-okonski.pl/uploadimg/file/xerosupebopin.pdfIn PDF document text
- http://c2ctrading.org/cms_upload/files/togajiwabatonejo.pdfIn PDF document text
- http://c-six.it/userfiles/files/jogunubozupurisubamo.pdfIn PDF document text
- https://institut-arabe.org/ckfinder/userfiles/files/kipureze.pdfIn PDF document text
- https://beaszemin.com/files/sorutadarot.pdfIn PDF document text
- http://angelascanu.it/uploads/file/lakowopebopameledojuzag.pdfIn PDF document text
- https://tapetcenter.ro/app/webroot/files/userfiles/files/kasedevemetisubesusodetaz.pdfIn PDF document text
- http://keletunderground.hu/images/uploaded_pics/file/zebejalefa.pdfIn PDF document text
- https://xn--nmqu14inmf.com/upload/files/kadugogebuxosezezepoki.pdfIn PDF document text
- http://www.haztartasigepszakuzlet.hu/pics/file/benisufinivepefimasota.pdfIn PDF document text
- http://huarui-bio.com/upload/files/74623821691.pdfIn PDF document text
- http://www.globalnautique.nl/upload/files/65855536569.pdfIn PDF document text
- http://allseasonsart.com/uploads/fck_uploads/file/64137905418.pdfIn PDF document text
- http://irollee.com/userfiles/file/37528880583.pdfIn PDF document text
- https://aporpeter.ro/userfiles/file/namefefilemozifugegu.pdfIn PDF document text
- http://www.wiz-fac.com/uploadImg/file/91930642342.pdfIn PDF document text
- http://xn--k1akb4c.xn--p1ai/userfiles/file/bubupudisudofaki.pdfIn PDF document text
- http://a-kamen.com/userfiles/file/79357710003.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=persona+4+side+questsPDF link annotation
- 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e512.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE512 | 17660 bytes |
SHA-256: 0674c6411d945a791997d982166f50e2bde164770b20b69fbd8d759284bad70e |
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font_01_sfnt_off00010000.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10000 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011817.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11817 | 10520 bytes |
SHA-256: ff2a699da9cc0f11096758e901e9da8164d4de47d2b0c0db181904fe30caaa27 |
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font_03_sfnt_off00012ffd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FFD | 18044 bytes |
SHA-256: a1fad42d7c4574bb8c41e9fce6fa4b94db14540d24d655fc352a6dd01879f99c |
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