MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous external links, many hosted on compromised or disposable domains, suggesting a link farm designed to redirect users to malicious sites. Although no scripts were explicitly extracted, the nature of the PDF and its numerous URLs strongly indicate it's part of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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 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 https://infrive.ru/uplcv?utm_term=calidad+de+vida+oms+pdf PDF link annotation
- https://fibra-optica.ro/ckfinder/userfiles/files/79692475441.pdfIn PDF document text
- https://transmilenio.net/datamont/userfiles/file/81467752125.pdfIn PDF document text
- https://metricgroup.it/uploads/file/repibo.pdfIn PDF document text
- https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612f4f0f8634e---55557046664.pdfIn PDF document text
- https://shevian.com/images/file/51134112189.pdfIn PDF document text
- https://rzfmuhasebe.com/userfiles/file/8616999783.pdfIn PDF document text
- http://soft-pro.hr/upload/datoteke/musolifivakibemexedonalu.pdfIn PDF document text
- http://hujiangsy.com/upload/files/66936774339.pdfIn PDF document text
- https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/42ae7e11c723152fc171140d4a6793db/kupemoxegilavex.pdfIn PDF document text
- https://amigo-shop.105h.net/upload/files/90514651669.pdfIn PDF document text
- http://safedoorsystems.com/cmsimages/file/zajomokuzapelesobuboboli.pdfIn PDF document text
- http://dainichiji.com/upload_ckr/files/vojavalaroruzekixufosinow.pdfIn PDF document text
- https://hum639hb2-hh38.com/contents/files/80164514678.pdfIn PDF document text
- http://mijn-nederland.nl/userfiles/file/rorirovafazazil.pdfIn PDF document text
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/669c7ae42e334d3dac25ec58fbcda92e/joxadadexoweguroru.pdfIn PDF document text
- http://biogenetec.tw/image/files/20210903_100824.pdfIn PDF document text
- http://tccsrl.org/userfiles/files/minonazemujevotimizesa.pdfIn PDF document text
- http://tentimesneedlehill.com/UPFILE/userfiles/files/rukaxakukopofajadunud.pdfIn PDF document text
- http://tutek.eu/userfiles/file/5860071545.pdfIn PDF document text
- http://mispuntossaga.com/campannas/file/39981955092.pdfIn PDF document text
- https://elearning-chemistry.ro/userfiles/file/kapukawesuw.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://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_off0000baf6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBAF6 | 10456 bytes |
SHA-256: 653ca22ce483d8f954e5f35b389480337562fc491603b21a9260f712e42697ca |
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font_01_sfnt_off0000d2b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2B2 | 17252 bytes |
SHA-256: 3b5a20f9aae75feb1ebf1e5c91e7c5f3dbafddc11753654b8a37dcac08a9e3bc |
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font_02_sfnt_off0000feda.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEDA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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