MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as a phishing trojan and a machine learning classifier indicated a high probability of maliciousness. Heuristics identified the document as a link farm pointing to multiple compromised WordPress sites, likely serving as a lure for phishing or malware distribution. No scripts were extracted, but the presence of numerous external URIs suggests an attempt to redirect the user to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://ketchas.ru/uplcv?utm_term=the+three+brothers+story PDF link annotation
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/8cd7d794d3aaa243efb601182938d1a0/34618741414.pdfIn PDF document text
- https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/160798b3ebafc3---73373609162.pdfIn PDF document text
- https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160918f4a92698---valedeliselopujadivimegos.pdfIn PDF document text
- http://groupkaishan.com/d/files/fevose.pdfIn PDF document text
- https://jordan.si/dokumenti/file/bevufadirawipidoviko.pdfIn PDF document text
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b4948033fa0---mutevovenez.pdfIn PDF document text
- http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af9b6a3fb14---jofewumidazixudalisolido.pdfIn PDF document text
- https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/ibvtjh69lfghql7j2140cehi3l/fupemog.pdfIn PDF document text
- https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f5725ecea8---kogifatufimevorilakavi.pdfIn PDF document text
- http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087554fea3a1---jevepi.pdfIn PDF document text
- https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/8mmpdia6cs64r890s0fr9naqrm/65095724864.pdfIn PDF document text
- http://biomassasia.net/data_ed/userfiles/file/xewagatimuxesim.pdfIn PDF document text
- https://sasalidayanisma.org/uploads/file/godabalisitukadobujom.pdfIn PDF document text
- https://noddy.nu/images/file/20651566915.pdfIn PDF document text
- http://acecaalcoy.com/userfiles/file/golitapi.pdfIn PDF document text
- http://jtipartner.com/ckfinder/userfiles/files/74492092365.pdfIn PDF document text
- http://dobrasekacka.cz/userfiles/file/budiwa.pdfIn PDF document text
- http://deckdreams.ca/clients/3/34/34055ef41782f8f15ebf372c1e39ecad/File/latamijewerarolizebutis.pdfIn PDF document text
- http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f34e74534b---dusexo.pdfIn PDF document text
- https://alrashed-alsaleh.com/userfiles/files/lepobaz.pdfIn PDF document text
- https://lordpin.com/calisma2/files/uploads/45990761061.pdfIn PDF document text
- http://bukvoznaika.ru/ckfinder/userfiles/files/14189791055.pdfIn 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://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_off0000e95d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE95D | 17616 bytes |
SHA-256: d18c02748deb9a054f0906082bc1d31a50fb9d4091d035ee7e18e353017c822c |
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font_01_sfnt_off0001177b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1177B | 10016 bytes |
SHA-256: b117f9b99a73f93c47bf20bbf3fc255594b99c794226029d39869779c958ed1a |
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font_02_sfnt_off00012deb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DEB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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