MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate the document functions as a link farm, directing users to multiple external websites, some of which are hosted on compromised CMS uploads. The presence of numerous unknown URLs suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 6
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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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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://nuestratierrapremios.com/campannas/file/xikujuwedukasi.pdf
- http://benardoutlite.com/admin/fckeditor/fckdata/file/fuxefaxosetulaxanu.pdf
- http://jrmhandling.nl/upload/file/puxuxavizutavopegusikixew.pdf
- https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/16d8f08544e8e0bdaeca417e439968d5/jijikozipunagifiwebafe.pdf
- https://corpusbg.com/files/fck/file/34181888682.pdf
- http://pk.mo/userfiles/file/tekowovok.pdf
- https://koparieshorvathbusz.hu/files/file/zifagonolodazarido.pdf
- http://dlzj.net/upload/files/20210622232627161989.pdf
- http://ypperfect.com/ckfinder/userfiles/files/dixujar.pdf
- http://pajurioverslas.lt/ckfinder/userfiles/files/95819202929.pdf
- https://annekienlen.fr/imagesfile/motode.pdf
- http://liddellgaryfamily.com/clients/863293/File/7577136112.pdf
- http://samrayburnclassof1980reunion.com/clients/873185/File/2973544534.pdf
- https://edmaker.site/wp-content/plugins/super-forms/uploads/php/files/8c06d50b789e1f4e8b21ae0c961220f9/lajejevirubipupenu.pdf
- https://www.aserspa.net/wp-content/plugins/super-forms/uploads/php/files/b90u5fh0c4e3vt7j8nlgbqe3se/xuwoj.pdf
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/j3bj6k15d1u23lqi74btp4p971/megimananezalanuluvozow.pdf
- https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d7f28e496a---jogatirewidopizok.pdf
- https://stiff.pl/ckfinder/userfiles/files/tabomixumojisomig.pdf
- http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fa9aed88646---29398006262.pdf
- https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/328b110006acdf289598e7f77024cf4c/vokuxej.pdf
- https://a1-recruitment.fr/v2011/Files/fck_upload/file/ludufilugefetafa.pdf
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2f97f1270a---56611802902.pdf
- https://ideylia.fr/uploads/file/53232639652.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607dffd7367b5---wufigoj.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=would+rather+would+like
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000da3e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA3E | 16792 bytes |
font_01_sfnt_off0000f255.bin291002bfa4dfa523bc87cc08d2dd4d8db8418ad05fe30dfa10662c95e11c5bbc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF255 | 10344 bytes |
font_02_sfnt_off000109d3.bind0856e4e5685759e6acb884d2bd7b9cc475735f52b5b0155a7a350bb9f2a3a82 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109D3 | 18948 bytes |
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