MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file that contains numerous external links, many of which point to compromised WordPress sites. The ML classifier and ClamAV detection strongly indicate maliciousness, specifically a phishing or trojan payload delivery. The document body is heavily obfuscated, preventing a clear understanding of its immediate purpose beyond directing users to external URLs.
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://infrive.ru/uplcv?utm_term=water+activity+and+moisture+content+pdf PDF link annotation
- https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/4jcdlmaomt00r84m0imm3cjt4r/zepik.pdfIn PDF document text
- https://www.ideaklinikbursa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607465692b31e---xupiwupejapojodotuboton.pdfIn PDF document text
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1f1bb0d55c---tesawuwodoposozukofena.pdfIn PDF document text
- http://dentherapia.hu/files/file/40152964013.pdfIn PDF document text
- https://arizonalightingsales.com/wp-content/plugins/super-forms/uploads/php/files/aa6eebd4efd20bc4d94b6534d0a79928/25189652122.pdfIn PDF document text
- https://fiambreszav.com/wp-content/plugins/super-forms/uploads/php/files/f3626d9c872607b68e1c2473d7ef03b1/sumezoxowivaziluxusez.pdfIn PDF document text
- http://kythuatviet.vn/uploads/userfiles/file/baxefepudafubipibulomed.pdfIn PDF document text
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abb5953bcd7---66928782298.pdfIn PDF document text
- https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/nahji4ed125257ofkc0vejv4jo/jarujikax.pdfIn PDF document text
- https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/49ar8g319p6dl9lia33nspdtjs/8110819921.pdfIn PDF document text
- https://matrainagycsalados.hu/userfiles/file/24908258817.pdfIn PDF document text
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608eb39c8b4dd---42827812081.pdfIn PDF document text
- http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160909cf051cf8---sufifujirasoxuxazisejodo.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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
- 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_off0000f390.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF390 | 5444 bytes |
SHA-256: 37596fd76733f49132ac60e1969e349e6cfaa9ac55de2269b391209b54588f4c |
|||
font_01_sfnt_off00010617.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10617 | 12204 bytes |
SHA-256: fb62fc7b875f12a636f446946b7da110e3d6d34542282bb45bb114582b2141ae |
|||
font_02_sfnt_off00012f75.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F75 | 16112 bytes |
SHA-256: 04c641d0aedeaa8c494855f42a2e9ae6fad9e3679126e7dc5c08fccc4b41c292 |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.