MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous links pointing to compromised WordPress upload directories, suggesting it's part of a link farm designed to distribute malicious content or redirect users to phishing sites. The presence of these compromised links and the nature of the URLs strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
-
ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
-
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://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160904a5149202---58897766470.pdf In PDF document text
- https://ksuskalology.com/images/file/909030504.pdfIn PDF document text
- http://thunderstar.cn/userfiles/file/20210619162507512617419.pdfIn PDF document text
- https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/160b4b537e2f86---88245134791.pdfIn PDF document text
- https://bodwellassociates.com/wp-content/plugins/super-forms/uploads/php/files/1664be4f105a767359374406c62fada3/gawunutopezoduduvabo.pdfIn PDF document text
- https://pensiuneavlasin.ro/wp-content/plugins/super-forms/uploads/php/files/4lf9b16s7409lu58df7tuut2ui/16515288794.pdfIn PDF document text
- http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a6f6e74eca1---3624485964.pdfIn PDF document text
- http://jcon-aps.dk/userfiles/file/69615644149.pdfIn PDF document text
- http://chiron-ventures.com/chiron/home/img/upload/files/210620030421993149d4o72.pdfIn PDF document text
- https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5f7c02a53---13568159275.pdfIn PDF document text
- https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/f0a4674197c7bfc3ee3a9983800e9820/84041372108.pdfIn PDF document text
- https://alihuata.com/userfiles/file/fobezowinumigenupuzisupa.pdfIn PDF document text
- http://acecaalcoy.com/userfiles/file/foxulavozixulukegepibasup.pdfIn PDF document text
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608755bdc5084---lebisuja.pdfIn PDF document text
- http://classofjoy.com/KK/userfiles/files/xalexogewodawoto.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/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=sanskrit+basics+pdfPDF 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
- 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_off0001052c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1052C | 5424 bytes |
SHA-256: beabccfc7c58ba183d7843e8eb43685497bfbf5354a7db97d4f7743a99826fbe |
|||
font_01_sfnt_off000117ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117AD | 18568 bytes |
SHA-256: 7d02b75d51b55e3df784ade2deda0266b3106ab6c5cf8e9ef2a0bd5373abed25 |
|||
font_02_sfnt_off00014cb8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14CB8 | 16196 bytes |
SHA-256: 18337a07c9c44834262d20d91ee5da47d38261d0252b6cb37bc9cb74325b6b6a |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.