MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URIs and links pointing to compromised WordPress uploads and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of embedded URLs and the nature of the heuristics strongly suggest this PDF is used as a lure, likely for phishing or to download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9931
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://crewmak.ru/uplcv?utm_term=downton+abbey+christmas+special+2011
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/lafrcn04r5b43qqmfgjb3erh25/30431318978.pdf
- http://toicodonlyson.com/uploads/files/dajiz.pdf
- https://lerong.vn/wp-content/plugins/super-forms/uploads/php/files/7bff1631f816c4243e752a2c46a4966c/lixozujalup.pdf
- https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/da7f9f3eae54e59687f47d25746c3e99/kadaselila.pdf
- https://marciasmithconsulting.com/wp-content/plugins/super-forms/uploads/php/files/f25a0cf87e41eb37623fcec1afc4c546/66047758239.pdf
- https://bestofbucerias.com/upload/file/59304170528.pdf
- https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/50203558876.pdf
- http://nordicaluminium.ru/userfiles/file/nekukijow.pdf
- http://webursitet.org/Files/file/mafivuteba.pdf
- http://psychoterapia-przemysl.net/img/userfiles/file/sovivatatusemopodasa.pdf
- http://apvn.info/userfiles/file/21062859265.pdf
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/01626f76298b6107b30202e507003d05/volumuxovat.pdf
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/34a078c02fb76029ee07fa8515284be8/85279214854.pdf
- https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608020ee1285f---65965425150.pdf
- https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/87df815523cbf6eaa1a4885719035900/kizomometosepovuxalo.pdf
- http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b221c4364b9---pazoferodugomivarajos.pdf
- http://alliance-vietnam.com/upload/files/getovutasaruruvowoxaja.pdf
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609de48809e4c---35093908713.pdf
- https://chennothinterios.com/uploads/file/43782345227.pdf
- http://arslanemlak.come/file/78151234033.pdf
- https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/2e3f04fbac1096a789f80cbf108f6fea/gimosovelasakebupiserov.pdf
- https://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/291093e3936c21005c0f3264eac12347/perowodifu.pdf
- http://amirafouad.com/uploaded_files/file/widaterimasunasigopavoni.pdf
- https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b86cdd4c194---2107494989.pdf
- https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/s9okacf8ud92m6dgslgl59l8qo/83134450547.pdf
- 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://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000144ba.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x144BA | 16792 bytes |
font_01_sfnt_off00015cd1.bin883dcf8e8e7cb2e693b81ce1b12190ee7c68629e0da13e5e468524c729af59f4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15CD1 | 11276 bytes |
font_02_sfnt_off0001770e.bin8fe00204392d65a2afaa2da0f672a160494f221830cb520ee37ff40e9468093f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1770E | 17124 bytes |
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