MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was identified as malicious by an ML classifier. It contains a link farm pointing to multiple distinct hosts, many of which are compromised WordPress sites or use disposable hosting. The primary malicious URL identified is http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2e2a9127e1---42541237052.pdf, which is hosted on a compromised CMS upload. The document body is heavily obfuscated and unreadable, preventing a deeper analysis of its specific intent beyond being a link farm.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
Heuristics 5
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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://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2e2a9127e1---42541237052.pdf In PDF document text
- http://unicaconsultoriarh.com/images/files/27741151855.pdfIn PDF document text
- https://liniagdanskzydowo.pl/files/16976749247.pdfIn PDF document text
- http://files.ibiza-ferien.de/file/53244315366.pdfIn PDF document text
- http://sewakendragroup.com/userfiles/file/taluk.pdfIn PDF document text
- http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606f89a950104---ludajikukipokoloxisabe.pdfIn PDF document text
- https://amthanhanhsangchinhhang.vn/upload/files/97216483736.pdfIn PDF document text
- https://robotics-institute.com/wp-content/plugins/super-forms/uploads/php/files/a843m3hps6dn1le1eg8upl1h2o/88497214379.pdfIn PDF document text
- http://dailymaydemtien.com/userfiles/files/koruzowugigadubikekunemew.pdfIn PDF document text
- https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f6d140a515---lukigotawinafimorep.pdfIn PDF document text
- https://watfordfairtrade.org/app/webroot/img/files/kudajadarow.pdfIn PDF document text
- https://ringid.vn/ckfinder/userfiles/files/12566965732.pdfIn PDF document text
- https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/1710c66af547a35a313cddca2322990e/75692785408.pdfIn PDF document text
- https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/4c201760b7c7ca8f3ee2389c47e89bd8/57335411018.pdfIn PDF document text
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16075b319734a5---daminexetumitez.pdfIn PDF document text
- https://nutstudio.it/userfiles/file/ruvuxi.pdfIn PDF document text
- http://www.darvidproperty.com/news/file/rozerekajugomofid.pdfIn PDF document text
- https://edusfera.pl/upload/file/8736793120.pdfIn PDF document text
- https://www.helmmsp.ca/wp-content/plugins/super-forms/uploads/php/files/a21be7395aaecf8e600887f5ba3ea358/50165737581.pdfIn PDF document text
- https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/40j6h3cf72b4c7uscqg9a3eeda/45797657291.pdfIn PDF document text
- http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608893ba3a993---fadaguveropagukesofogopi.pdfIn PDF document text
- http://nw-line.ru/generic/uploaded/vajinulumegebuwewozazadex.pdfIn PDF document text
- https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/62fc24b97ae781d37d72258b76c05e70/vawanozamilozavovepo.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=std+9+science+chapter+1+answersPDF link annotation
- 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_off0000ef9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF9E | 16788 bytes |
SHA-256: 51e9a01036fd5e40fafb4da2ef13287645fa9a3241ea0b6b02d9ea6206f6649a |
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font_01_sfnt_off00011afe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AFE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013315.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13315 | 10824 bytes |
SHA-256: 2b24ca0f2ad3276c385274045f2184d3389443e6c13d21f88aad101afa1e4fa9 |
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