MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with many URLs pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or SEO manipulation scheme. The document body was unreadable, but the presence of numerous external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly support the attack pattern.
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 https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613f81f612cca---43944882881.pdf In PDF document text
- https://hyundainhapkhau.vn/upload/files/60985373389.pdfIn PDF document text
- https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/037239c6ad10b7dbb817b8fe75da3632/85687116827.pdfIn PDF document text
- http://thepducphat.com/upload/files/sozujujorederiwakudar.pdfIn PDF document text
- http://coeb.eu/userfiles/files/zonibi.pdfIn PDF document text
- http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ce6b10b121---dimalimibaderidi.pdfIn PDF document text
- http://microcement.ua/userfiles/file/87449040955.pdfIn PDF document text
- http://chafewyuok.handysociality.com/upload/files/pelut.pdfIn PDF document text
- http://immobiliareborghi.com/userfiles/files/85613502008.pdfIn PDF document text
- http://anhhieu.vn/hinhanh/file/vizopubejuvubinured.pdfIn PDF document text
- http://psychologadamczak.pl/userfiles/file/87912701223.pdfIn PDF document text
- https://hoongnau.com/upload/files/nemuludin.pdfIn PDF document text
- https://ancoraeducacion.com/images/94891595252.pdfIn PDF document text
- http://jfe.hk/userfiles/24662526423.pdfIn PDF document text
- https://nffcd.org/userfiles/files/54143125714.pdfIn PDF document text
- https://eminenceconstruction.ca/viking1/uploads/files/62616480856.pdfIn PDF document text
- https://cfbadalona.net/ckdata/files/95686366731.pdfIn PDF document text
- http://caudafotografia.com/userfiles/files/wumilujebuduwarewup.pdfIn PDF document text
- http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ff3f94fb46---454925145.pdfIn PDF document text
- https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1612ee2fbc5b73---zumun.pdfIn PDF document text
- https://giolog.biz/images/bulk_images/files/julonosebofanewosidobu.pdfIn PDF document text
- http://tpfish.com.taipei/archive/upload/files/76612487739.pdfIn PDF document text
- http://dglytbt.com/upfolder/e/files/20210902024225.pdfIn PDF document text
- http://hrdiborice.cz/erucom1/files/files/koxoni.pdfIn PDF document text
- https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/0ddd31c130ff8a1a13878527220fa7ad/96684019857.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=free+keyword+listPDF 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_off0000e91f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE91F | 17800 bytes |
SHA-256: a9d7a84e94be4cf38d05164ca4b3f251d1e1bf594abf56ca77876f07f86bed36 |
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font_01_sfnt_off000116f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116F4 | 10244 bytes |
SHA-256: afadd4aa57e2fe90e7de086543c4b65ec804c227a5e51f48d05985eb324da903 |
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font_02_sfnt_off00012e27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E27 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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