MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to external websites, many hosted on compromised WordPress installations, suggesting a link farm for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to educational materials, aiming to trick users into clicking malicious links.
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 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://queure.ru/uplcv?utm_term=heredity+and+evolution+class+10+notes+pdf+state+board PDF link annotation
- http://payassistinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160844801ec58c---76151028673.pdfIn PDF document text
- https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b741e53063a---kofakidax.pdfIn PDF document text
- http://appletechsolutions.com/userfiles/file/10746784403.pdfIn PDF document text
- http://www.apsetedavisi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c3959e6054---napofavotorekimipiruzo.pdfIn PDF document text
- http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084b15d9e4db---gubarutijob.pdfIn PDF document text
- http://kbchina.de/upload/85814460255.pdfIn PDF document text
- https://alllegaltask.com/wp-content/plugins/super-forms/uploads/php/files/o0enl1fag9qtrvtherebkshn28/kugetazipaniwatokebuve.pdfIn PDF document text
- http://steakclubhn.com/campannas/file/jofavebetuxoput.pdfIn PDF document text
- https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/to9o2rtno2s6g8t35060u61b9g/bujekovuvixone.pdfIn PDF document text
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4521491150---89477306853.pdfIn PDF document text
- https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/fqbgpj81s4gcpmqecm78e9sd65/79514187025.pdfIn PDF document text
- https://urbanplace.me/wp-content/plugins/super-forms/uploads/php/files/757de02b4a02c9dfdf4eb9580b4288f2/37135341553.pdfIn PDF document text
- https://frontlinetherapist.com/wp-content/plugins/super-forms/uploads/php/files/e3b9afe3aaba1ef01d237457e5806fa2/75441385233.pdfIn PDF document text
- http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b86b9aa49b1---nijedefotizaxemumero.pdfIn PDF document text
- http://www.aqsclimited.com/EditorImages/file/8151385152.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000f770.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF770 | 5604 bytes |
SHA-256: 665b08fc4d32c609c37d64d2097c268ce1dc4370655de71624d6e1e42c0c206f |
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font_01_sfnt_off00010a97.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A97 | 10796 bytes |
SHA-256: 357af105d7c49e8a089ffb15b73b31ce921058ea1cc530df6b9fe327d76a24ce |
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