Malware Insights
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and ML classifiers indicated a high probability of maliciousness. Heuristics identified it as a link farm pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to distribute malicious content or phish users. The presence of URLs like 'http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/lqe5v1f0ke618183nfqs8f6qok/60846201192.pdf' and 'http://charmingcurls.se/upload/file/91466304342.pdf' reinforces this, as these appear to be disguised links to potentially harmful files.
Machine Learning
- Nyx PDF Classifier malicious score 0.9906
Heuristics 7
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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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608de4c42a48d---51674240716.pdf In PDF document text
- http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160b32efb2f9bc---tutoluline.pdfIn PDF document text
- https://functionalmovement.gr/wp-content/plugins/super-forms/uploads/php/files/1b2e9225b82f4634c9ad921959021715/86609329745.pdfIn PDF document text
- http://radis-rrl.ru/userfiles/image/mamezowisenoxerozedol.pdfIn PDF document text
- http://canadanur.com/resimler/files/5741632440.pdfIn PDF document text
- https://cdpu.net/wp-content/plugins/super-forms/uploads/php/files/c1fe784eb8079338ca567021c0c90e2b/8235080518.pdfIn PDF document text
- http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/lqe5v1f0ke618183nfqs8f6qok/60846201192.pdfIn PDF document text
- http://charmingcurls.se/upload/file/91466304342.pdfIn PDF document text
- https://svetpoznaniyaonline.ru/wp-content/plugins/super-forms/uploads/php/files/1ee8bc0f26b0e72324c67f338729a71f/26078041167.pdfIn PDF document text
- https://centrobrands.com/wp-content/plugins/super-forms/uploads/php/files/096fc05fa8035ad59842d21406d1269d/repuduvowewamidelutinux.pdfIn PDF document text
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6a9b246517---favisuga.pdfIn PDF document text
- http://brickbodysupplements.com/newerac2c/userfiles/file/lenasomawodagukefej.pdfIn PDF document text
- http://alhouti.com/userfiles/file/46272572908.pdfIn PDF document text
- http://podiummoda.ru/userfiles/file/nipadon.pdfIn PDF document text
- http://madonnina.info/userfiles/files/biwowobu.pdfIn PDF document text
- http://hchs1972.com/clients/2/2c/2cb73362227bcfbd3ed6ae01b5b3dc46/File/mulugalakafixit.pdfIn PDF document text
- https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/nsu1fp081d75v8ivptcvucqk13/sagogovaf.pdfIn PDF document text
- http://www.allatpatikapecs.hu/images/file/48272290677.pdfIn PDF document text
- http://www.vikingmaterials.com/img/medalifunirewotaka.pdfIn PDF document text
- http://boxerdapolenta.com/cmsimple/images/file/logijoxovupomuj.pdfIn PDF document text
- http://adria-ex.com/images/blog//file/desadumuxiz.pdfIn PDF document text
- https://interface-graphique.com/upload/editor/file/jigiwizugu.pdfIn PDF document text
- https://carstenrath.com/wp-content/plugins/super-forms/uploads/php/files/k2kb9umghdifnrgftcrpahopbd/zanivikunokagazamaja.pdfIn PDF document text
- http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160ba2978cf81c---56093767881.pdfIn PDF document text
- http://gps-tw.com/CKEdit/upload/files/26586364555.pdfIn PDF document text
- https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/cd9b46e7be2c21c49b1f6dcf989e25d2/fipatezasenapoxolamugu.pdfIn PDF document text
- https://svetpoznaniyaonIn macro / runtime command snippet
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=shrek+2+espa%C3%B1ol+latino+vocesPDF 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000113b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113B8 | 19900 bytes |
SHA-256: b404ee69f51632e348bd582c409e0c39c743ba8664ac724f2eb0ea8bef1b5417 |
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font_01_sfnt_off00014720.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14720 | 11028 bytes |
SHA-256: 4adddcc6a8830606b94fcd738006d1eacaa1d3ab5f3dad4465485f703e14fdc3 |
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font_02_sfnt_off00016090.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16090 | 17904 bytes |
SHA-256: 10112c41c13193027805e30b2b221af2d4e7b09ae7fb6677e02a5c92384ffaf0 |
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font_03_sfnt_off00017b66.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17B66 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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