MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating it likely contains malicious content. The heuristics reveal it functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS upload storage. The presence of numerous links and the nature of the hosting suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://foodchemsino.com/d/files/wibinakekifapewetuzil.pdf In PDF document text
- http://aklond.com/UploadFilesfile///2021051322062431.pdfIn PDF document text
- http://rlangkhan.com/upload/userfiles/files/butolikidejegi.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e8538db6e2---fegobojuzu.pdfIn PDF document text
- http://candientuvibra.com/images/file/54298856506.pdfIn PDF document text
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/1402976a604e7efba8bd86c68cd159b9/35107330685.pdfIn PDF document text
- https://blnk.eu/userfiles/files/zufibagedede.pdfIn PDF document text
- https://accesoriosalmayor.com/images/userfiles/file/dijoxutetifevalojiwifuni.pdfIn PDF document text
- https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/97a8d72e6677935b489b3d87bba32bcb/zekak.pdfIn PDF document text
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be1fae769dd---sanowuramo.pdfIn PDF document text
- http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160c42aea1ce61---xofonojijuzuwipipebol.pdfIn PDF document text
- https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/8edeb316755dfb4a4930d726ddfba842/87969656416.pdfIn PDF document text
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9ac1a512d---regafozezariwedofaso.pdfIn PDF document text
- https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/1d57t4sfimkkafvsilf5l7grq1/lovalijenozi.pdfIn PDF document text
- http://cnpair.com/userfiles/file/28647756447.pdfIn PDF document text
- https://burmesecatclub.nz/wp-content/plugins/super-forms/uploads/php/files/825d8dd657d49b3292e0b6551990c2d5/20322045809.pdfIn PDF document text
- http://lltsg.com/uploadfile/file///2021061100224576.pdfIn PDF document text
- https://cwlighting.com/wp-content/plugins/super-forms/uploads/php/files/ade02384a3b73b2c4d4fedf50defdb4c/47784888740.pdfIn PDF document text
- http://pferdefreunde-brueckenhof.de/sites/default/files/userfiles/file/gibixugigagavukiselamo.pdfIn PDF document text
- https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/49detqutpo4qj2tb6bj5vnaqev/guvidijetuw.pdfIn PDF document text
- http://nitexprofi.cz/userfiles/file/5576743637.pdfIn PDF document text
- http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ce38ab277cb---zaxazuz.pdfIn PDF document text
- http://fine-cottage.ru/userfiles/files/18682331027.pdfIn PDF document text
- http://saamfactory.com/wp-content/plugins/super-forms/uploads/php/files/9222f9f8cc0724590829156c47898ad6/girulelosilulobozutusig.pdfIn PDF document text
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16094d4c3359b5---82087394829.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=self+growth+questionsPDF 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_off0000e946.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE946 | 16552 bytes |
SHA-256: 94534bea8ae42150d98178010e0636c15aade092a779df5c6832cd984daa54f3 |
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font_01_sfnt_off00011409.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11409 | 10736 bytes |
SHA-256: 622af6d2e142ca359ce0ad1b46647cad45740491b361789e626738b75c81a3ed |
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font_02_sfnt_off00012c6e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C6E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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