MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing attempt. It contains numerous links pointing to compromised websites, suggesting it's part of a link farm designed to distribute malware. The presence of invoice-related language further supports the phishing lure attack pattern. No scripts were extracted, but the overall structure and URL patterns are indicative of a downloader or phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9765
Heuristics 7
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160790ee3178db---tusolipop.pdf
- https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/9tqcb393ic245nl16a66oegrvg/52474250002.pdf
- http://xboxheerlen.nl/userfiles/file/luniragevomedakuladegemip.pdf
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/bb4530c6622b3873f97ee4f3c0c96adf/98724443010.pdf
- http://briarcliff68.com/clients/71184/File/fozunitujafolu.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba7dc557d95---bipopitezidog.pdf
- http://camberwelltaxi.com/survey/userfiles/files/giwuxapuxuman.pdf
- http://app8itebarandgrill.com/admin/images/file/loxik.pdf
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/ba85b1ab00c6ed12da255acaccf2adad/99165498551.pdf
- http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098c2252363a---vexoxumategav.pdf
- https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/1609d36a45299d---19413747311.pdf
- https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/4aed503f2ef55e6f9281eab213c724d4/67775802140.pdf
- https://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092b3a43dac8---fedufulitawiviwa.pdf
- https://dialogueinpraxis.net/files/docs/57459168442.pdf
- http://a2itsolutions.com/chop/multimedia/userfiles/file/98849161223.pdf
- https://tramhuonghanoi.vn/upload/files/kuxupiputebuvomediluwel.pdf
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbf585c538---nazasematunirogilufi.pdf
- https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/1b537de72b0dd3ca939f8c7b81b4afd2/gureboman.pdf
- http://dietmoiquangle.com/webroot/img/files/53156457055.pdf
- https://master.plus/wp-content/plugins/super-forms/uploads/php/files/748425d9417a3d9421099ffdec86685f/xanerirajo.pdf
- https://gdr.co.il/wp-content/plugins/super-forms/uploads/php/files/775ea9d6781de64534af3989d5a534ac/62572505453.pdf
- http://creativeindustries.ru/uploads/userfiles/file/44062943445.pdf
- http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/7bcf6f5dcebc62b7c8bb3ce323638574/gumefilona.pdf
- https://tidaksusah.com/contents//files/9699594889.pdf
- https://advance-pack.com/editor_upload/file/67711657835.pdf
- http://fincasotilloviejo.es/files/sotillo/_repo/file/vomodumivos.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=goof+up+meaning+in+english
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d22b.bin5d3c36a1e2fe1f057342d8307900d7ae65f2629b1f7812c2133d6905bdb06ef4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD22B | 10748 bytes |
font_01_sfnt_off0000eaa9.bind23a8ecb3a2a8234b8c756d7a99f42794592171ac6d366ee39a21e17778c74dc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAA9 | 18684 bytes |
font_02_sfnt_off00011ae4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AE4 | 16792 bytes |
font_03_sfnt_off000132f5.binbe696b9420b953798398bc7643a8eef224842594aa13414a9b8d841ee446dfc4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132F5 | 16876 bytes |
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