MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous links to external websites, many of which are hosted on compromised WordPress sites or disposable domains, suggesting a link farm designed to distribute malware. The presence of a 'password-protected archive lure' heuristic indicates the document likely instructs the user to open a password-protected file, a common method to evade static analysis. ClamAV also detected this file as Pdf.Phishing.Trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 8
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://inwebjor.ru/uplcv?utm_term=dls+unlimited+create+player+apk PDF link annotation
- http://westernmaki.com/uploads/files/52967119834.pdfIn PDF document text
- https://specialbrands.gr/wp-content/plugins/super-forms/uploads/php/files/e82fdb070c1f16609a5d1ef0fc9e931d/72101362776.pdfIn PDF document text
- https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/bs5nt6ld2o2h8bv0qo5ber0q26/91899107809.pdfIn PDF document text
- https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1607eed941e2f4---nujonedogepomas.pdfIn PDF document text
- http://axwelindia.com/uploads/supugidonusewezufenegan.pdfIn PDF document text
- http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/1lc8qmkmj25fcc3upga0vo6kpp/17301955192.pdfIn PDF document text
- http://www.zaluziemalina.cz/userfiles/file/ridosu.pdfIn PDF document text
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/ns43ajdsn7oki27mtptdkf8pu1/86666292200.pdfIn PDF document text
- http://ixtvs.de/_upload_bilder/_filemanager/file/tutogusutevelozikosibo.pdfIn PDF document text
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606d2d935d968---visowomoxubedovukor.pdfIn PDF document text
- https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/djp6fnu0g9aj339b4epj8j92f7/zijezuforezipikenaxemik.pdfIn PDF document text
- http://phillipwhiting.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078fac8555d1---nojaxalavinemelif.pdfIn PDF document text
- http://zulassungsservice4you.de/bilder/file/9038776001.pdfIn PDF document text
- http://bamt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1607edf12c2c7c---mujatowirovokivuvexokaved.pdfIn PDF document text
- https://burmesecatclub.nz/wp-content/plugins/super-forms/uploads/php/files/e11f523ec84b2c15f0661df8ace098f5/bijipurubaxejan.pdfIn PDF document text
- http://afgventuregroup.com/cfiles/file/dixutig.pdfIn PDF document text
- https://www.avantagesapp.com/uploads/files/68127326340.pdfIn PDF document text
- https://www.oneirishrover.com/wp-content/plugins/super-forms/uploads/php/files/238d133f5c0c8efd61ee613c9e1290c2/45646475026.pdfIn PDF document text
- https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/jm5036r5900oc8sgda98v6tpm2/piwonafera.pdfIn PDF document text
- http://iaestedresden.de/userfiles/file/45429878761.pdfIn PDF document text
- https://oklogistic.lv/upload/file/vafog.pdfIn PDF document text
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/i4o2ae6qcce853hnpmokoqm791/sotiwovafekarekagugudure.pdfIn PDF document text
- https://amiablediamonds.com/wp-content/plugins/super-forms/uploads/php/files/4765e48c687891608f73ceddfdb54a71/42564021737.pdfIn PDF document text
- http://asiancfea.org/userfiles/file/62028290417.pdfIn PDF document text
- https://plswa.com/wp-content/plugins/super-forms/uploads/php/files/61ab71cd77b943038586e8b54a5da617/37283992030.pdfIn PDF document text
- http://kirakuramenandsushi.com/uploads/files/pikubekoremofi.pdfIn PDF document text
- http://harchovyk.com/userfiles/file/22427502068.pdfIn PDF document text
- http://snap-drone.com/userfiles/file/74672904015.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_off0000ecf4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECF4 | 10864 bytes |
SHA-256: 2ad1bda5f1063ff2e61ebaf0e34756e47fba14c860c8a3f369dce6aa95bd5e09 |
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font_01_sfnt_off00010606.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10606 | 19624 bytes |
SHA-256: 6419a700d27e869333e2a2d7112afe8a19a1992128ac13071fd2a7747ee69a29 |
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font_02_sfnt_off0001373b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1373B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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