MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF document identified as malicious by ClamAV and an ML classifier. It contains numerous links, many pointing to compromised WordPress sites, suggesting it's used as a link farm. The presence of external URIs and the nature of the links indicate a potential phishing or malware distribution vector, likely delivered via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/83b417b0022c89c0e1d9e236c0284cf9/52482076244.pdf
- http://chhsclassof70.com/clients/1/1f/1f6d1b94cf555b90b9f410dfa82aea5f/File/zeriroladojimoxopemadaxib.pdf
- https://dixietemporarystorage.com/wp-content/plugins/super-forms/uploads/php/files/d8944c7504c5f5be78e6a78116eb8986/gemurajopetewu.pdf
- http://mywayrtk.info/userfiles/file/venamilefozusemewefasagol.pdf
- https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/fou1hjd8m9tvs3j0up95f2bit5/6471063705.pdf
- http://securitydirect.it/wp-content/plugins/super-forms/uploads/php/files/e89be752fd29df41d9c7deac0d58cbad/47386626458.pdf
- http://pathtojanna.com/userfiles/files/71954061311.pdf
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070a41f9f667---60843075316.pdf
- https://mk-sito.it/uploads/file/89232531426.pdf
- http://haozuowenwang.com/imagefiles/file/kevijimomilunidinizi.pdf
- https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090212b2ed7f---rutoz.pdf
- http://bamt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1607db64cc6fed---tuxavebojifinekogap.pdf
- https://peiitw.com/Upload/ckeditor/files/33846024624.pdf
- http://bongoes62.dk/userfiles/file/zikabivaparafe.pdf
- http://salespate.com/userfiles/file/36145835770.pdf
- http://infinity-pro.ru/userfiles/file/82954716517.pdf
- http://31kouqiang.com/userfiles/file/1626213506.pdf
- http://brkvinc.com/userfiles/file/39294228907.pdf
- http://mecaniquekd.ca/upload/file/4587555379.pdf
- https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/16091c54a82fee---18310321522.pdf
- https://lrdreamteam.com/files/files/file/InfoProduct/file/pavixamawazi.pdf
- https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/7d1ac35c8efe129115dad17fddab06b7/79859641854.pdf
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/16082906829e78---53126684177.pdf
- http://atrsara.ir/resource/files/3261047130.pdf
- https://hyundainhapkhau.vn/upload/files/vagegewuxunabaxixogoba.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=how+do+you+take+glass+screen+protector+off
- 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_off0000d4cb.bina16ffa043586e5cdfedda472ea17ad2b5c8e71661cae020caa1f700db3230a1c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4CB | 11088 bytes |
font_01_sfnt_off0000eea3.bin64bf9d3b133dd77c169191891724a1b8b28f84430aab8ea8188f8649d39e1ece |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEA3 | 17128 bytes |
font_02_sfnt_off000119f9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119F9 | 16792 bytes |
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