MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, and contains numerous external links. Several heuristics indicate that the PDF is a link farm hosted on compromised or disposable domains, suggesting a phishing attempt to lure users to malicious websites. No scripts were extracted, but the presence of many external links points towards a phishing or spam campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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://irlanc.ru/uplcv?utm_term=square+root+of+23.5 PDF link annotation
- http://dagmar-e.de/userfiles/file/90999064097.pdfIn PDF document text
- https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/1614050112abc9---78561469599.pdfIn PDF document text
- https://snowcat.pl/admin/ckfinder/userfiles/files/46240341972.pdfIn PDF document text
- https://picinterior.com/ckfinder/userfiles/files/63273474454.pdfIn PDF document text
- https://lapalettedesarts.fr/gestion/file/talikiruvilenavalod.pdfIn PDF document text
- http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bf0e1afa0a---pujalazu.pdfIn PDF document text
- https://osikovo.eu/webroot/img/content/files/51765372310.pdfIn PDF document text
- http://unsersohn.ch/images/file/79373168566.pdfIn PDF document text
- http://tz5168.com/uploadfile/image/2021/09/01/file/20210901_112214_116.pdfIn PDF document text
- https://lideregitimpaketleri.com/calisma2/files/uploads/nojifufafelafomefutuxufa.pdfIn PDF document text
- http://glassick.com/userfiles/file/94594151606.pdfIn PDF document text
- http://cnokorea.com/userfiles/file/66976670777.pdfIn PDF document text
- http://zhongjiukeji.com/upload_fck/file/2021-9-4/20210904015417498131.pdfIn PDF document text
- http://rlmlaw.com/images/edit_images/file/84305171609.pdfIn PDF document text
- http://vvk-wiedermann.at/userfiles/file/lelubuxud.pdfIn PDF document text
- http://cncforginghammer.com/d/files/95790461700.pdfIn PDF document text
- https://postelezmasivu-praha.cz/ckfinder/userfiles/files/5720323490.pdfIn PDF document text
- http://pm-property.pl/userfiles/file/puvixaxujokopakovepixigif.pdfIn PDF document text
- https://tckontrola.hr/files/nabupikanudatolejezifan.pdfIn PDF document text
- https://holycrosshealthcare.com/userfiles/files/85325684787.pdfIn PDF document text
- http://jingluo.net/uploadfiles/files/dijizikozarivifebugire.pdfIn PDF document text
- https://marlin-aquarium.ru/ckfinder/userfiles/files/68640493279.pdfIn PDF document text
- http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/161451eeb03d95---58638905747.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_off000129f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129F2 | 20076 bytes |
SHA-256: 65e0e5c2573a2b2393ce043ba27ced28b3525f266b50c1ecfb59267ba44ff797 |
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font_01_sfnt_off00015e1a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15E1A | 10608 bytes |
SHA-256: d68a5bee9063241685a6a5b80f6f4782aab63ec5c58a8ce3dd782ee51265c15c |
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font_02_sfnt_off000176a2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x176A2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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