MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. It contains a link farm pointing to compromised WordPress upload storage and other disposable hosting, suggesting an attempt to redirect users to malicious content. The ML classifier also returned a high confidence score for maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://labuchedeberce.fr/userfiles/file/zuwadufepuxodazulur.pdf In PDF document text
- https://stvietnam.net/luutru/files/wisumabatebuvunatubu.pdfIn PDF document text
- http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616679892ac87---vozukolefenovunubugatope.pdfIn PDF document text
- https://orcasproje.com/userfiles/file/81694276207.pdfIn PDF document text
- http://universalthailand.com/images/uploads/ckfinder/files/77792020002.pdfIn PDF document text
- http://dulwichtaxi.com/survey/userfiles/files/3550908513.pdfIn PDF document text
- https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/7b3331419d14c81beca04cfbcc0c35e5/nilafuri.pdfIn PDF document text
- http://kolesa.sk/files/nuwozusonofuxupejezam.pdfIn PDF document text
- https://oriolefashion.com/ckfinder/userfiles/files/dojepaberoxoripopa.pdfIn PDF document text
- http://fueandhair.com/userfiles/files/74974833856.pdfIn PDF document text
- https://yodishit.com/uploads/userfiles/file/80850424058.pdfIn PDF document text
- https://postelezmasivu-ostrava.cz/ckfinder/userfiles/files/nivusenovareferadupoj.pdfIn PDF document text
- http://tythb.com/uploadfile/files/fesovaviz.pdfIn PDF document text
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/22b98700a8796b6f59f03f3c2faff556/mugebasafozawukubivazero.pdfIn PDF document text
- http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e39a31d7a8---ralewo.pdfIn PDF document text
- http://diakmelo.hu/ckfinder/userfiles/files/gotodadi.pdfIn PDF document text
- http://cuboni.com/uploadfile/hong202109281935537678.pdfIn PDF document text
- http://jnejendomsdrift.dk/userfiles/file/3671230207.pdfIn PDF document text
- https://deltaguvenlik.net/userfiles/file/6447723897.pdfIn PDF document text
- https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/edb8dcc6b1d1ec97fd40037901186d40/falib.pdfIn PDF document text
- https://www.idd.no/ckfinder/userfiles/files/98382965903.pdfIn PDF document text
- http://hieuchuan.com/upload/files/25369231850.pdfIn PDF document text
- https://educhina.mn/editor/files/62710410199.pdfIn PDF document text
- http://feedproxy.google.com/~r/Xvkpad/~3/UsNeCLCzgYg/uplcv?utm_term=the+office+s6e4PDF 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c4bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC4BF | 16460 bytes |
SHA-256: 2cbffde489d10d18caba6f043922ba98018452f6b6d999a34c264a14afb47b8d |
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font_01_sfnt_off0000ef1e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF1E | 10132 bytes |
SHA-256: a3334aad414e76ee98ad062fc5213189979376d452a38271e4fc3756510d15ae |
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font_02_sfnt_off000105f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105F7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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