MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ba8f647c45---zaliponuxaxezojigoraji.pdf In PDF document text
- https://termoformat.md/img/files/sebagibamasetigazafuxazeg.pdfIn PDF document text
- http://anhuifan.com/upload_fck/file/2021-4-30/20210430022132651553.pdfIn PDF document text
- http://akkoryazilim.com/userfiles/file/kabokoxufimokiwezad.pdfIn PDF document text
- http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074d2204c2dd---95198554158.pdfIn PDF document text
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/9ffa7c2ee46ab90f352ac7dbda6fde73/93705282235.pdfIn PDF document text
- http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a408ad9561---16083671605.pdfIn PDF document text
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083e198073b5---90422597239.pdfIn PDF document text
- http://jarauwerdaenzn.nl/userfiles/file/zijubapurijuvejarabuk.pdfIn PDF document text
- http://parkwaywest1974.com/clients/861606/File/fedotosixu.pdfIn PDF document text
- https://vildmarksjagt.dk/userfiles/file/29731453485.pdfIn PDF document text
- https://aadhaarretail.com/administrator/imagetemp/file/tilomegupiduseledagi.pdfIn PDF document text
- https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/c98959fa4ed23df89c8d7de94af1b527/83451048587.pdfIn PDF document text
- https://investainternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084e39052690---28350022149.pdfIn PDF document text
- http://solamsys.com/userData/board/file/fafosotul.pdfIn PDF document text
- http://emeat.ru/var/files/lufemolebalogikek.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=a+first+course+in+probability+9th+edition+solutionPDF 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ebad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBAD | 5632 bytes |
SHA-256: a06a3f304cc590e7c8fd96b2421a28caa16d6138b9b8fa065b3e5d46e364e7fe |
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font_01_sfnt_off0000fed1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFED1 | 12072 bytes |
SHA-256: 9b71b628b1ac43b45f77a0afdf3ce16ee3c170cec6e7978e070a102e487bda48 |
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