MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to disposable hosting or compromised CMS upload directories, suggesting a link farm or redirection scheme. The presence of these links and the overall structure indicate an attempt to direct users to potentially harmful content or exploit kits.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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 http://119hero.kr/userData/board/file/50632753492.pdf In PDF document text
- https://vildmarksjagt.dk/userfiles/file/sinebajareguvidolaw.pdfIn PDF document text
- https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d232c7253b---rorizimexo.pdfIn PDF document text
- http://chixue.com/uploadfile/file/20210521040734.pdfIn PDF document text
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1609f3500668c0---sowanixoj.pdfIn PDF document text
- http://ugrctrani.it/userfiles/files/20726001023.pdfIn PDF document text
- http://ekotronic.eu/files/file/10125238434.pdfIn PDF document text
- http://cuanhomkinhtoanthang.com/media/file/22644715210.pdfIn PDF document text
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/16087df2691e5f---1985144458.pdfIn PDF document text
- https://stopserv.ru/files/file/jajizumaj.pdfIn PDF document text
- https://fcr-fomentoconsumoerenda.com/uploads/files/33869590169.pdfIn PDF document text
- https://area34.info/wp-content/plugins/super-forms/uploads/php/files/a83cq5fs4bn3dn50lrtiihv623/60836936854.pdfIn PDF document text
- https://clove7.com/userfiles/file/66974392527.pdfIn PDF document text
- https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/fs9ckv8cn4rpvajdoerq2g1dq0/58356040322.pdfIn PDF document text
- http://haniltm.kr/upfiles/editor/files/supixewow.pdfIn PDF document text
- https://alpinashop.bg/files/50479535484.pdfIn PDF document text
- https://graffitipaintstudio.com/wp-content/plugins/super-forms/uploads/php/files/d2a3b4f504b60a8748716e76ae5f0b6d/xutazidufuge.pdfIn PDF document text
- http://cukierniabrzezinski.pl/www/artizam/fck/file/18042315170.pdfIn PDF document text
- http://lindseyderence.com/userfiles/files/26277486777.pdfIn PDF document text
- https://hobbes-group.com/upload/files/binevoxasukedapujarev.pdfIn PDF document text
- http://millecolori.it/images/file/wajilekizatel.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=linear+equations+with+square+rootsPDF link annotation
- http://e1pl2.nazwa.pl/busy/fotki/file/legofuzevoketebitup.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_off0000c091.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC091 | 16432 bytes |
SHA-256: 4681cb361b74f90c3d3d701b7fdb77fc0d6b2f73148a5f8a4dc5dc08b439e8d6 |
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font_01_sfnt_off0000eb71.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB71 | 10448 bytes |
SHA-256: 2c9184a68e141aef555aa59c777fbf325daf7e39199d0ce310c8c4956017d5d2 |
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font_02_sfnt_off0001032b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1032B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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