MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is identified as a malicious PDF by ML classifiers and ClamAV. It contains numerous links, many pointing to compromised CMS upload storage and disposable hosting, suggesting a link farm designed to redirect users. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a non-clustered link farm on disposable hosting, and the PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristic points to compromised WordPress upload storage. These findings suggest the PDF's primary purpose is to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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 http://ardechetendancebrut.fr/userfiles/ardechetendancebrut.fr/file/79582552505.pdf In PDF document text
- https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/jftg8i17ufn9vll44cekamsun3/saxikokubodegalobaroguri.pdfIn PDF document text
- http://work4shop.cz/userfiles/file/zorekiwixipufe.pdfIn PDF document text
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a655825ceb7---zuwivafivilaxumoxirem.pdfIn PDF document text
- http://xn----8sbnbd9chja.xn--p1ai/userfiles/file/51719224398.pdfIn PDF document text
- http://architettoletiziamasciotta.eu/userfiles/files/70144555358.pdfIn PDF document text
- https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/7d394b6f6a296463ef540507502f936a/64507201286.pdfIn PDF document text
- https://almondzwealth.com/administrator/imagetemp/file/23579788090.pdfIn PDF document text
- http://hzjksj.com/images/upload/File/futuwudeselusoguwutu.pdfIn PDF document text
- https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/85c8897c6efefff892a1d3f6a721b1e8/73853644913.pdfIn PDF document text
- https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/59340bc4b67ad0e44a5d1c4144b5d4b8/73073650772.pdfIn PDF document text
- https://papiratisk.cz/soubory/wilajuborovosumibi.pdfIn PDF document text
- http://bezagsecurity.cz/userfiles/vixanosovon.pdfIn PDF document text
- https://divinenine.net/userfiles/file/63217794764.pdfIn PDF document text
- http://www.anclupnapoli.it/userfiles/file/fitedogitorolorega.pdfIn PDF document text
- https://www.infrascale.com/wp-content/plugins/super-forms/uploads/php/files/257dc019a71c8dee386f916072d560e5/sekujajetiwegafazezuriko.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e3539d0b56---pisefufurerajinasinadapu.pdfIn PDF document text
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bb5bf9db8ec---dimabugunudazademepedox.pdfIn PDF document text
- https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/a46a6c13912340ca1dbed3638c5fe8ef/42926482400.pdfIn PDF document text
- https://www.hausbootgeiseltalsee.de/wp-content/plugins/super-forms/uploads/php/files/irqj10ck0rkjrkj1j45p8s87dv/17545592957.pdfIn PDF document text
- https://www.tangelo.no/wp-content/plugins/formcraft/file-upload/server/content/files/16093e4c7c3db6---21128561338.pdfIn PDF document text
- http://clarkhigh72.com/clients/3/34/34275c7d49a174b5f6cf03bf5966da6c/File/97947729840.pdfIn PDF document text
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/160825b7c42ec7---15807837428.pdfIn PDF document text
- https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/44dd8db4d7411f862485747ab04bf78e/gijoraje.pdfIn PDF document text
- http://rzn-house.ru/upload/file/tavejibadid.pdfIn PDF document text
- https://a2designbg.com/userfiles/file/xolopozibiboki.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=sharp+cramps+in+stomachPDF 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_off0000ea98.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA98 | 10536 bytes |
SHA-256: e29638cdf0c53b9b2351e017072eb20e3b1cdaecba23b11fba5874bdd8aba63a |
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font_01_sfnt_off0001026b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1026B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011a7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A7D | 16296 bytes |
SHA-256: 61947329cb4aa1c05f873cf6b0fdc3a72993032cd4a3a8cad5c1f54e8d553544 |
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