MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 7
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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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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://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/ace30950c307c9b02a7fb8d69d6b24e3/tevarotirev.pdf In PDF document text
- https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/e397f14c77f3f6e128b5931d93e3375d/36523967093.pdfIn PDF document text
- https://cafe-malaysia.com/contents/file/debaduvi.pdfIn PDF document text
- https://bentzendesign.se/wp-content/plugins/formcraft/file-upload/server/content/files/160c15cde18ca5---50584640297.pdfIn PDF document text
- https://llibreriaha.com/img/events/file/wodijaz.pdfIn PDF document text
- http://opalsolar.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16088d2c04cdd0---tiwifis.pdfIn PDF document text
- https://thekolkatapackersmovers.com/ckfinder/userfiles/files/11833989729.pdfIn PDF document text
- http://www.pattyn360.com/upload/forum/files/lugivuxif.pdfIn PDF document text
- https://fiberglasssupplydepot.com/userfiles/file/motijevumeziwopuvole.pdfIn PDF document text
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609272f0710f4---7817538676.pdfIn PDF document text
- http://joesservicecenternj.com/userfiles/files/vubozezer.pdfIn PDF document text
- https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/pfv9d903253r3pd0526i6r5isv/nozanito.pdfIn PDF document text
- http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b169a76b7da---nepofujit.pdfIn PDF document text
- http://printrun.nl/userfiles/files/tajebo.pdfIn PDF document text
- http://consoles-a-gagner.com/fckeditor/userfiles/file/jifovuxitoli.pdfIn PDF document text
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/kvgs7vg6e1v52br9nj6kksae32/meralisedilefibu.pdfIn PDF document text
- http://philippinesroadshow.com/wp-content/plugins/super-forms/uploads/php/files/4304124596d66517ad89d6241517f425/voliluzijomiwok.pdfIn PDF document text
- http://newo.ru/files/files/kibepelanosilofevobujip.pdfIn PDF document text
- https://sportsht.com/userfiles/file/36232903926.pdfIn PDF document text
- http://tz5168.com/uploadfile/image/2021/06/27/file/20210627_131306_170.pdfIn PDF document text
- https://xn--interpeas-r6a.es/upload/files/xejulobidakarudijenapu.pdfIn PDF document text
- http://kovofilm.cz/userfiles/file/nogudipedi.pdfIn PDF document text
- https://pannonfinanz.eu/editor_up/wepageno.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=drone+tello+manual+espa%C3%B1olPDF 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_off0000cf7f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF7F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e796.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE796 | 10628 bytes |
SHA-256: 6f82734f8c997d8a3193654eb381df748e30c94af06d982ca4d5ee72ea8aeeab |
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font_02_sfnt_off0000ff9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF9E | 19064 bytes |
SHA-256: a38f6da000ce7a6d15ec98c87822517018b90305159ee7670359392e1cb29841 |
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