MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains numerous links to external websites, many of which are hosted on compromised WordPress installations or disposable domains, suggesting a link farm designed to redirect users to malicious content or phishing pages. While no scripts were explicitly extracted, the nature of the links and the overall structure indicate a phishing or malicious redirection attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9848
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://laborke.ru/uplcv?utm_term=chrome+os+boot+from+usb PDF link annotation
- http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/9u684go9iuf58lt0v8h3s2vjn2/22423712174.pdfIn PDF document text
- https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/jtsdh27socndo73b3rtjpicsou/nikoladebamoxarijixibiwa.pdfIn PDF document text
- http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090444450f4f---vevubased.pdfIn PDF document text
- http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609c7709171a4---nujilo.pdfIn PDF document text
- https://djhelaly.com/wp-content/plugins/super-forms/uploads/php/files/5799f182a5e0936bf197f360cbeda817/lepeteke.pdfIn PDF document text
- http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cfd8c148ed---nejerodezalobiga.pdfIn PDF document text
- https://isosklo.cz/uploads/83655194152.pdfIn PDF document text
- https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/57a0899db05dc3ebbed8278c06671079/witavopikokuzesebigesa.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080ad5ce61d9---wagapevinurida.pdfIn PDF document text
- http://wypelnienia.kratex.pl/wp-content/plugins/super-forms/uploads/php/files/06f7506b8acb2c9e143db0fbc89e2c4f/rimut.pdfIn PDF document text
- https://kingyao.com/uploadfiles/files/20210628_165230_9683.pdfIn PDF document text
- https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/1608d11c8172cd---95479597589.pdfIn PDF document text
- http://tochuchoinghi.org/files/vapafuxe.pdfIn PDF document text
- https://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b33a3c6a996---34379998141.pdfIn PDF document text
- http://yejida.com/userfiles/file/fepizapenifi.pdfIn PDF document text
- https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d1e75e7d7e6---13115971582.pdfIn PDF document text
- http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/f7fdfj8rq3hau6vggk1teeh2tu/valaduvowovizidewo.pdfIn PDF document text
- https://taichielite.com/louis/taichi/ckfinder/userfiles/files/66361998229.pdfIn PDF document text
- https://faresaldabbous.com/uploads/files/4322901946.pdfIn PDF document text
- https://kovtec.pl/eurostyl/photos/file/vizob.pdfIn PDF document text
- https://traonguoc.vn/wp-content/plugins/super-forms/uploads/php/files/7c00eqkbrchhqn00e4te68io6r/kamulufanejonakimidi.pdfIn PDF document text
- http://verduciautodemolizioni.it/userfiles/file/40046423816.pdfIn PDF document text
- http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608dccaabef7c---mebapapemikareladupujagug.pdfIn PDF document text
- https://assignmentmart.com/ckfinder/userfiles/files/20490288226.pdfIn PDF document text
- https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/1608c9f0d0630a---bepobolok.pdfIn PDF document text
- http://www.thaiboat.net/image/upload/File/25023361461.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_off0000ed75.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED75 | 10344 bytes |
SHA-256: b9d4ecd860c0c1a6b28ebdcdad92cc4696137fe5a833286e83ebdd9c6d42fc6c |
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font_01_sfnt_off000104e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104E5 | 17604 bytes |
SHA-256: bb111ac488c299fd0db892801f41eb895085ef40e053de6f748f47cb40ba3b01 |
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font_02_sfnt_off0001335f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1335F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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