MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The document functions as a link farm, containing numerous URLs pointing to compromised WordPress sites. These links are likely used to redirect users to phishing pages or download further malicious content, aligning with a spearphishing attachment attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://oniceh.ru/uplcv?utm_term=unit+4+worksheet+geometry+answers PDF link annotation
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160984e9d59ac5---zixulapenupepekuwilifat.pdfIn PDF document text
- http://fipjp.com/userfiles/file/36481210618.pdfIn PDF document text
- http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160740bb61f002---39979338104.pdfIn PDF document text
- http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160c74aed95dd9---xurin.pdfIn PDF document text
- https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/3ggdik5dg8vjuf7cp52ib0i0nv/mazeniresekojelanujewez.pdfIn PDF document text
- https://emauto.lv/index/images/up/file/55733302766.pdfIn PDF document text
- http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e5e40bc581---xeluredop.pdfIn PDF document text
- https://www.westcountrystoves.co.uk/wp-content/plugins/super-forms/uploads/php/files/979b8346a09545fa2443630489f84e97/reguzarufolewuwirusetekug.pdfIn PDF document text
- https://cdmsig2.com/ckfinder/userfiles/files/9195358812.pdfIn PDF document text
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/118768e94ddb73c98a1d21641bd79bb3/ratuwuvasapazaliponedas.pdfIn PDF document text
- http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079480412061---60211879159.pdfIn PDF document text
- https://arket.io/wp-content/plugins/super-forms/uploads/php/files/bpuudgdhq3v91oe7ra7on3n4i2/70964189249.pdfIn PDF document text
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16076334758918---tutemibedemakire.pdfIn PDF document text
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/a7e9b47fec747c41ea1418fd62ec97f7/2828832100.pdfIn PDF document text
- http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c4251a34e1---juxosojelekepalun.pdfIn PDF document text
- https://jollytime.ru/wp-content/plugins/super-forms/uploads/php/files/e770819dc002337e8fe21a7f2ba881b3/4019664830.pdfIn PDF document text
- https://alamansyria.com/userfiles/file/52153549581.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e622.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE622 | 5280 bytes |
SHA-256: d4d405f8f36b670bc522526da0b653c891ce1a1a8d14ad7673cf9f92c9938430 |
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font_01_sfnt_off0000f877.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF877 | 5404 bytes |
SHA-256: a885b448e395fb0b84050e97dbf0afa6f4d99944f0f9dab7344355c55f467666 |
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font_02_sfnt_off00010acd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ACD | 11376 bytes |
SHA-256: 6c11dd06702b03e6596277f7b6d3b36bf227dc6e99eb5a7991146e6918537d43 |
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