MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document is flagged as malicious by multiple heuristics and an ML classifier, indicating a high likelihood of malicious intent. The document employs a remote-support tool lure, instructing the user to install or connect with such software, which is a high-risk action in an unsolicited context. The presence of numerous external URIs, many pointing to compromised CMS upload storage, suggests the document is part of a link farm designed to distribute further malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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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Remote-support tool lure high SE_REMOTE_SUPPORT_LUREDocument instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
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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://crewmak.ru/uplcv?utm_term=what+is+correct+form+of+verb PDF link annotation
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/e815a8f6d837f3a717634f3337fbaf24/xivobemewojabuxalusona.pdfIn PDF document text
- http://boissee.fr/userfiles/file/28057836606.pdfIn PDF document text
- http://abwmountvernon.com/uploads/files/xevarax.pdfIn PDF document text
- http://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1609f0db86533d---kunefogadedasoviveduko.pdfIn PDF document text
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16076031fb692e---46092239646.pdfIn PDF document text
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160d9b408f01da---fibibizuxegiberifetikufaw.pdfIn PDF document text
- https://www.federatedlighting.com/wp-content/plugins/super-forms/uploads/php/files/9cf8de0f339767b0d7b4446336a76604/misipufozusivakixige.pdfIn PDF document text
- https://giolog.biz/images/bulk_images/files/zobusif.pdfIn PDF document text
- http://anhuifan.com/upload_fck/file/2021-5-5/20210505042921935786.pdfIn PDF document text
- https://licorne-hotel-restaurant.com/userfiles/file/juwofemirawoguxol.pdfIn PDF document text
- http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/mmri99dtmonnvutgnt9klqsh7l/buzuj.pdfIn PDF document text
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608a85792d0c3---17536142873.pdfIn PDF document text
- http://gerd-pollak.de/userfiles/file/powozelewijododevukokaja.pdfIn PDF document text
- http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a57b42c571c---28037324234.pdfIn PDF document text
- http://payassistinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607277309d0d4---dakuxaxenotudedanesowo.pdfIn PDF document text
- https://thefencedocumentary.com/adminfiles/file/tamevele.pdfIn PDF document text
- https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/d5e33a0599fab4baf21962e54afab76f/53488164309.pdfIn PDF document text
- http://richardarnoldalumni.com/clients/a/ad/ad1dcfa6f69ac51e3fe6bec18f6cf6d6/File/27872595236.pdfIn PDF document text
- http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/1607792100ceb9---pewolakemudida.pdfIn PDF document text
- http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160890a130effe---maxakojezakaj.pdfIn PDF document text
- https://jotelek.hu/files/file/perabibejisose.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160876a2f1cfd7---59884319487.pdfIn PDF document text
- http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160bbd22cc894c---pujemivevalozuwelabuxesof.pdfIn PDF document text
- http://dollreunion2020.com/clients/4/43/4392dc7a9e9236654a628da0af121bbb/File/tinatifevu.pdfIn PDF document text
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1607af211ab7b0---nebomukunizejevolimej.pdfIn PDF document text
- https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16097af9ba3f35---rubemezegesiwewovusapimi.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_off0000fac4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAC4 | 17000 bytes |
SHA-256: d15237601b8b0933e4ab04284178481c48be38161ac5cab8ad88e8cb6e8942c2 |
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font_01_sfnt_off000126d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126D4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013eeb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13EEB | 10652 bytes |
SHA-256: 4343bbbc90ee7b2b88f90b6a91f0bf5ead677c108188eaf61949b35489187b60 |
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