MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ClamAV and an ML classifier, with heuristics indicating embedded JavaScript and a link farm pointing to compromised CMS uploads. The embedded JavaScript likely attempts to redirect the user to malicious sites hosted on these compromised platforms, serving as a lure for phishing or further malware delivery. The presence of numerous unknown URLs associated with compromised WordPress installations suggests a coordinated effort to host malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9824
Heuristics 8
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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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Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTHA PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d9d77f2235a---83146584814.pdf In PDF document text
- https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/3769660b60e01d362ca5d5a0befd0d39/38731847896.pdfIn PDF document text
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608fa2d76fb98---rezukuri.pdfIn PDF document text
- https://appvid.eus/userfiles/files/baredagupelagotifanopa.pdfIn PDF document text
- https://sensiblemachines.com/ckfinder/core/connector/php/files/51158859555.pdfIn PDF document text
- http://cmrivestimenti.com/userfiles/files/29966788675.pdfIn PDF document text
- http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160730d5b1773b---75165098733.pdfIn PDF document text
- https://snpwachq.com/files/js/ckfinder/userfiles/files/zewerirulozofewitu.pdfIn PDF document text
- https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160994455184fe---65885891637.pdfIn PDF document text
- http://www.goldenlantern.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160755fc166496---gunori.pdfIn PDF document text
- http://7linc.com/uploadfiles/fckeditor/20210725/file/16271581418242.pdfIn PDF document text
- http://epoch-making.jp/js/upload/files/20421342966.pdfIn PDF document text
- https://premiumvipbusiness.com/wp-content/plugins/super-forms/uploads/php/files/dadd33695e2ecbb46d9cd81930cf8998/buxedolu.pdfIn PDF document text
- https://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/0f766af7038e1d0fd0d66f4d9c8ccbe8/terabejolavobajawu.pdfIn PDF document text
- https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/6e38led9jgif3sd963srlhnbtm/58377533549.pdfIn PDF document text
- https://eltechma.com/zdjecia/fck/file/32544945057.pdfIn PDF document text
- http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160d4e4063fdbe---zolibuzimuxodosewexiki.pdfIn PDF document text
- http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609a280986330---rabuw.pdfIn PDF document text
- http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b87b3463c5e---fitujira.pdfIn PDF document text
- http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090930ae4695---696166510.pdfIn PDF document text
- https://nscs.org/wp-content/plugins/super-forms/uploads/php/files/910d242925922c53298f980a4468aceb/lewamibu.pdfIn PDF document text
- http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/c024613b544158a80c4571a611fcbb74/96489913551.pdfIn PDF document text
- https://songhongresort.com/img/files/27205306923.pdfIn PDF document text
- https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/160986623eabda---11393112130.pdfIn PDF document text
- http://homelife-superstars.com/image/files/86602575239.pdfIn PDF document text
- http://newabel.com/ckfinder/userfiles/files/21875334897.pdfIn PDF document text
- http://pcwenhua.com/uploadimg/file/16252227841800033619.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a715ecd2f8b---dewuminisadegozetasesejo.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=chakras+of+human+body+pdfPDF 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_off0000dffc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFFC | 17476 bytes |
SHA-256: 3341824d480674b4942f9dd3e98e2e7998a82bfa32c569c5391a9bef9cbd9cbb |
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font_01_sfnt_off00010d7e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D7E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012595.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12595 | 10872 bytes |
SHA-256: a85252d6c1f40ad26151a8de2af458d8cf6f2978d0ebb2b5c7a9dfb11b0525d4 |
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