MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or malware distribution attempt. It contains numerous embedded URIs pointing to compromised WordPress sites and disposable domains, suggesting it functions as a link farm. The presence of external URIs and the nature of the heuristic firings strongly indicate that this document is designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 7
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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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://catamma.ru/uplcv?utm_term=manual+wheelchair+measurements
- http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607102e64fe83---89780794683.pdf
- http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/161007c3d976e6---84821654805.pdf
- http://juniorsmagazine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080982f2be51---41496003571.pdf
- https://meesens.be/KrMee/Tekstverwerker/zapixabexipajibemevetad.pdf
- https://www.escon.it/wp-content/plugins/super-forms/uploads/php/files/34d168c6b48046325141cf91357b52d3/bojedab.pdf
- https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/5f95494d300d9a4d64e044b0ea291dab/32965259311.pdf
- http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/160c022894ac6d---22844565043.pdf
- http://zonweringbelgie.com/ckfinder/userfiles/files/44601227572.pdf
- http://mrybalko.ru/files/paruderipu.pdf
- http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/160832c5b6706f---derurujasilek.pdf
- http://praguetransfer.com/files/file/30667794002.pdf
- http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fb7f66d304---54173332945.pdf
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607259d1078b7---37183907726.pdf
- http://mulroyenvironmental.ie/userfiles/file/retipupunamigaxulavufede.pdf
- http://logistra.fr/ressource/site-image/files/48130014537.pdf
- http://shannonlakeestates.org/fck_images/file/wusidilenumoxa.pdf
- http://biurod9.pl/public/userfiles/file/90919184282.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1607167944e7d3---42158789857.pdf
- http://ntep2008.com/UserFiles/File/28813171758.pdf
- https://wonwon.taipei/photo/file/fokapilufav.pdf
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1610ec09982b6d---wuzusavajonipefozezi.pdf
- http://www.serenissimaservizi.com/files/gegokalonovola.pdf
- http://longarmquiltacademy.net/fckeditor/userfiles/file/wilevax.pdf
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/160728032bb6e6---13645127024.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dfd3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFD3 | 16792 bytes |
font_01_sfnt_off0000f7e5.bin37e18d12c60225b3ce0b96cf59ed0b25795e201e1bbc6172720dae3c335a11dc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7E5 | 18252 bytes |
font_02_sfnt_off00012694.bina57860512b3c1140322b89b0cf1105ece7aeed2c8851f1cacc2e48b388c1286e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12694 | 10556 bytes |
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