MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, pointing to numerous compromised WordPress upload directories. These links likely serve as a distribution mechanism for further malicious payloads, aligning with a spearphishing attachment attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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 https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/loqbmftj3nlk0d57ukl5feigm9/gozutenakunili.pdf
- https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c8247cd884---7128891593.pdf
- http://stepsforstarlight.org/clients/c/c6/c668404594a1c08d975ab50c7bec58f6/File/54033740146.pdf
- https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/815e43c34a25aa20a50b7e30cc315438/80092014103.pdf
- https://www.spreefahrten-berlin.de/wp-content/plugins/super-forms/uploads/php/files/fcs8iv33h0887im444nnstfas5/togurevilezimujuburebatem.pdf
- https://www.charroninc.com/wp-content/plugins/super-forms/uploads/php/files/afddccdb587088c0e20a20461846b384/66084362348.pdf
- http://evpltravel.com/xv_image/file/3083434926.pdf
- http://www.empresasdelimpeza.info/wp-content/plugins/formcraft/file-upload/server/content/files/160761073e8d71---58856119282.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160b2c80d36102---sebijovuwafun.pdf
- https://youstore21.com/wp-content/plugins/super-forms/uploads/php/files/3d3dde0537c49036c3ee591309a01ade/rifoliteperele.pdf
- https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b685daaff4---80068705218.pdf
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a96672ee6ed---81497164298.pdf
- http://kurskodkb.ru/page_edit/_samples/userfiles/files/19636493859.pdf
- https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/76aa9d87748c1bb5500dee94a569539e/29823438548.pdf
- http://opakowania-loga.pl/zdjecia/fotki/file/87626355399.pdf
- http://accessiblevehicleservices.com/userfiles/file/49114292533.pdf
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160968db557f32---19266685711.pdf
- https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/fd0e9b3ba75469aaf694a7f6f0661385/winiketifubibixobanozet.pdf
- https://kham.vn/userfiles/file/lokufubixojene.pdf
- http://centrons.com/uploaded/file/103397521960b54cae48568.pdf
- https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/92660881baae05c42c7cc9e9a043f43b/73843926819.pdf
- http://martom24.pl/martom/userfiles/file/30363065860.pdf
- https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1607bbe5c4829b---povekozepuxufenadododabig.pdf
- https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f85d6c8833---28086660372.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=types+of+military+boats
- 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_off0000e00b.binbb96b2f6b903696f7bb87841e94af314c84540f3e08cf48af465026198146ecc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE00B | 10632 bytes |
font_01_sfnt_off0000f833.bincc7bf6d11348d2d48329ea2eb055243c362bfec9cd6e30b0b7d5013d1aaaed48 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF833 | 17240 bytes |
font_02_sfnt_off0001251f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1251F | 16792 bytes |
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