MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing attempt. It contains embedded JavaScript and a link farm pointing to compromised WordPress upload storage, designed to impersonate Microsoft and lure users into clicking malicious links. The primary goal appears to be credential harvesting through a phishing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 8
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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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Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISHDocument impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=to+build+a+fire+assessment+answers.
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://www.mysmilestudios.com/wp-content/plugins/super-forms/uploads/php/files/17ae2e9468e58a4893e90274ee23f07e/refibanexiridumu.pdf In PDF document text
- https://girl0229960192.com/upload/users/files/wikaxozinivesidetok.pdfIn PDF document text
- http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/98dd9181d11be281f315ea72d2671ad2/41924940138.pdfIn PDF document text
- https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/3h2bhm3ov9p5sju5cb29php3o1/texemijanusizufid.pdfIn PDF document text
- http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/160d68c52c5627---kamamawitawibuverin.pdfIn PDF document text
- https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b894e2f3873---64908327463.pdfIn PDF document text
- http://xn--h1aaebbkfib4a.xn--p1ai/sadm_files/xanorolusopiporuzomosit.pdfIn PDF document text
- https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adf11df2852---3210649435.pdfIn PDF document text
- http://xaydungphongphu.com/uploads/files/fevurupufuduluzelun.pdfIn PDF document text
- https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/fc1ae2265a756efac987677ec1b264d1/87675573708.pdfIn PDF document text
- http://driver-jazda.pl/upload/file/29075595370.pdfIn PDF document text
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/160a096c4d0500---ledimowozapu.pdfIn PDF document text
- https://cplastik.cz/data/cms/file/23214263559.pdfIn PDF document text
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/f1787a93a0b90ce5dbd366274cf50081/84965876664.pdfIn PDF document text
- https://readxyz.com/wp-content/plugins/super-forms/uploads/php/files/bddb192acb0892d2126037880099d3d8/5522042081.pdfIn PDF document text
- http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f4e68a284a---muxedob.pdfIn PDF document text
- http://polimak.pl/userfiles/file/nosarido.pdfIn PDF document text
- http://docando.es/js/ckfinder/userfiles/files/tisenusoxotolemef.pdfIn PDF document text
- http://goteneplast.se/files/images/file/71552015996.pdfIn PDF document text
- https://resulgame.com/calisma2/files/uploads/wivovujabulimelofixatugop.pdfIn PDF document text
- http://jpind.pl/userfiles/file/79331405069.pdfIn PDF document text
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1b89e69740---14187267323.pdfIn PDF document text
- http://safeabortionnepal.com/userfiles/file/pepenitenibakuvu.pdfIn PDF document text
- https://congchunghadong.com/uploads/files/fivutukinitirupup.pdfIn PDF document text
- https://thetitangroup.ca/wp-content/plugins/super-forms/uploads/php/files/21d1507af40886191c2c35141ec616b8/mugabegixa.pdfIn PDF document text
- https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d77fc1e57b---negidu.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=to+build+a+fire+assessment+answersPDF 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_off0000f752.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF752 | 10804 bytes |
SHA-256: 4790f3d34528c3563f799dea09a83f1bdca9e2830a98940cfbe3dee3c671145a |
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font_01_sfnt_off0001103c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1103C | 16828 bytes |
SHA-256: ec507b1ce0d65248f6154702a5f1796f03b75fb728cc2f02ee6b91da6f34657d |
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font_02_sfnt_off00013c12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C12 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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