MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to compromised WordPress sites and other disposable hosting, suggesting a phishing or malware distribution scheme. The presence of a 'download button' heuristic further supports the lure aspect of the attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://smidgel.ru/uplcv?utm_term=download+logo+modernism+pdf
- http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609eca1f1659c---jefaja.pdf
- http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/1606ccfb71a89d---37369365420.pdf
- http://rollfactorytogo.com/uploads/files/64797442303.pdf
- http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160898f6b2aa0f---bekiputiruz.pdf
- http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096f81605fbf---tumewobokogutonogixufi.pdf
- https://www.ideaklinikankara.com/wp-content/plugins/formcraft/file-upload/server/content/files/160763f59191fa---63417089099.pdf
- https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/ebfe5917ceaa9f5bb228e70ba6d236a5/86456201033.pdf
- https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/999aa8684543bcd12610090d67343109/giruwu.pdf
- http://sola-brothers.com/userfiles/file/medaximalijagiso.pdf
- https://www.albispanaderia.com/wp-content/plugins/super-forms/uploads/php/files/ce53bcfbb9634565cb9a82502b1a48b6/mipusugulu.pdf
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/qeka2m701mmnmtm2vc0cam1v46/suxubakijopibo.pdf
- http://kistours.hu/userfiles/file/64767275127.pdf
- http://xn----8sbaqfskngn1qi.xn--p1ai/userfiles/file/latatavatokevo.pdf
- https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0af6e4e38---96324540824.pdf
- http://cosmic-kino.ru/sadm_files/bawidemarusizusemexidewe.pdf
- https://aradovan.com/userfiles/file/vuriwafurowafimemefarike.pdf
- https://performanceltg.com/wp-content/plugins/super-forms/uploads/php/files/fbe9af836d7685bf9a6db242a170e21f/59954859319.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dea8.bin77c3c19cdcb0f25d8a92d881bf40273cda25746626fecc42eae4769dbcc77822 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEA8 | 5160 bytes |
font_01_sfnt_off0000f026.bina89983bd29eb195ff1a8c284ad041568654682028fd2166b5c489f9b94044987 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF026 | 10484 bytes |
font_02_sfnt_off000113e6.bin9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113E6 | 4324 bytes |
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