MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF file was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing lure. It contains numerous links, many pointing to compromised WordPress sites, designed to trick users into clicking them. The document body, though partially corrupted, suggests a pretext of a 'reference letter phd application' to encourage user interaction with these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
-
ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
-
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.
-
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.
-
External URI info PDF_URIPDF contains an external URL action
-
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.
-
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://chcial.ru/uplcv?utm_term=reference+letter+phd+application PDF link annotation
- https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/23a93d0478eb3c63e1b10f8081e7e94a/14150902388.pdfIn PDF document text
- https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/8690cff1c9b4bcffe71261272dcc3bda/26962956346.pdfIn PDF document text
- http://grandinhr.eu/images/user/file/42136370115.pdfIn PDF document text
- https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d4672bacea---zetigonujewulag.pdfIn PDF document text
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/cc89066455dc562a20d64c797a37f5c8/xunujujoxa.pdfIn PDF document text
- https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/6pql8kboddfuca8350isvo8fji/86590056294.pdfIn PDF document text
- https://hirurgija.me//files/vixewo.pdfIn PDF document text
- http://obasekiestates.com/UserFiles/file/13034638267.pdfIn PDF document text
- http://statewideroadservices.com/clients/879378/File/zedaxagano.pdfIn PDF document text
- http://mjsolankifoundation.com/fck/imagesfile/tinidibekiwepafitisu.pdfIn PDF document text
- https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607947301ff7d---87327246240.pdfIn PDF document text
- https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a006807ed34---biresejonikij.pdfIn PDF document text
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/16077b87a5b45c---gojusupotalamovonajin.pdfIn PDF document text
- https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cf3a6ee518---befanetoxakapabe.pdfIn PDF document text
- https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160abb828df96b---74932802640.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00012ae9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AE9 | 4860 bytes |
SHA-256: 772841524657e6ccd3e409bf285203413ca83658f15b12f3b27a4850f78311b7 |
|||
font_01_sfnt_off00013b5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B5E | 11432 bytes |
SHA-256: 48d4f421114d3670e3ec2b11374acfc718db0f0ea76a6c250a11865160ee4c94 |
|||
font_02_sfnt_off0001622b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1622B | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.