MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised CMS upload storage, suggesting a phishing or SEO poisoning attack. The embedded URLs, many hosted on potentially compromised sites, are the primary indicators of compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c58ad04cb26---bitotamoxawesekozovi.pdf In PDF document text
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/ajg5kvlk59pm8f8ufs697tiqkk/23791541364.pdfIn PDF document text
- http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a6593de6282---45533416396.pdfIn PDF document text
- https://havanic.com/cache/fck_files/file/83466524885.pdfIn PDF document text
- http://phanvienphianam.com/uploads/userfiles/file/wolegalupuwererovewofi.pdfIn PDF document text
- http://accomplishtheimpossible.com/userfiles_ati/file/5247033114.pdfIn PDF document text
- https://jambukuning.com/contents//files/vawoduz.pdfIn PDF document text
- https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/7b04b4a8e1586ef8c9bcfd26f846df2c/zipire.pdfIn PDF document text
- http://dainindo.com/Uploads/userfiles/files/pebezopovemowatibepajulul.pdfIn PDF document text
- http://podiummoda.ru/userfiles/file/87605884062.pdfIn PDF document text
- https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/160816e3696ca3---17689927142.pdfIn PDF document text
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e5c45e9435---44983127144.pdfIn PDF document text
- http://ovartec.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080faf27ad9b---wefibize.pdfIn PDF document text
- http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160cf3ac903cc0---30848742143.pdfIn PDF document text
- https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c7a1b31734a---1092028585.pdfIn PDF document text
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607fd68451316---40033523789.pdfIn PDF document text
- https://beauti-full.ru/uploads/files/pupuzerebokavonu.pdfIn PDF document text
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/f006c476d4f2ce69d272911b18760bc1/wasogokaxabasetoxeg.pdfIn PDF document text
- https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/3830cce814138f2821b0bedfa2224da6/85386091230.pdfIn PDF document text
- http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/5c37279544c438282b69d87db2c8aada/83347824643.pdfIn PDF document text
- https://www.colours-of.com/wp-content/plugins/super-forms/uploads/php/files/fehbq51ju9t5btqhv5geqaok6l/xuliwuxufonubibomej.pdfIn PDF document text
- https://www.helpforbusymums.com/wp-content/plugins/super-forms/uploads/php/files/525902ba760dc0a1be08962556837e86/nubijujipag.pdfIn PDF document text
- https://altinhediyeler.com/calisma2/files/uploads/lobalugazowutizomelen.pdfIn PDF document text
- https://www.mnspineandsport.com/wp-content/plugins/super-forms/uploads/php/files/cd6f03efa0886976abb7b7c0576271fb/rupuzi.pdfIn PDF document text
- https://designcoordinators.com/wp-content/plugins/formcraft/file-upload/server/content/files/160797942760a5---29909035887.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=how+to+create+an+android+app+step+by+step+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_off0000fa45.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA45 | 17000 bytes |
SHA-256: acb62126d623ec7dddae8c066a949305b6635491b66e3457ca4c364533f6e3f2 |
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font_01_sfnt_off000126c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126C5 | 10900 bytes |
SHA-256: 3d0b6b77175d130c3955b2ec62633e1535a87c92786f9b80110de7edc7b5ed6c |
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font_02_sfnt_off00013fee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13FEE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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