MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected by ClamAV as Pdf.Phishing.Trojan and flagged by an ML classifier, indicating malicious intent. It contains embedded JavaScript and a large number of external URIs, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users. The primary purpose appears to be to lure victims through a phishing attachment and then redirect them to malicious content hosted on compromised infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9936
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/160738bea546d9---11383068571.pdf
- http://yfatc.com/userfiles/file/3382653215.pdf
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a6fb4902b89---18722166460.pdf
- http://gat-asset.com/CKEdit/upload/files/valobamebowivek.pdf
- http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b977d6c074---59378241798.pdf
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6436f5868d---10063131493.pdf
- https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/f6067e3cfef6303bfc87d699d593d9a3/68859871319.pdf
- https://www.baileysmilk.com/wp-content/plugins/super-forms/uploads/php/files/9fc37c5e9b39af677846fc94c5e4ddba/sujeduterejifafufik.pdf
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c37d7c5f375---nalogu.pdf
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609e82e8b8552---73545624260.pdf
- http://littlepearlbooks.in/data/eimages/file/54059701530.pdf
- https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/5ab4bc444cb7b4e286bfbb58bf514ae7/vadanenexerijadomasol.pdf
- https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088fd929f4a5---73497437416.pdf
- https://parklanehotel.asia/userfiles/file/vuvudaripebi.pdf
- https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a550b752c16---tikagiro.pdf
- http://www.maderas-navarro.com/ckfinder/userfiles/files/20890929305.pdf
- https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/u2jl2s7ouqcv6lqddsdbmc1cp3/18271499142.pdf
- https://gagiongvitgiong.com/ckfinder/userfiles/files/xotowufunoweg.pdf
- http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/99lfcc9mil8k5o0tib2fboqd23/dotir.pdf
- https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1607daaf76353b---41257872993.pdf
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1606f316d902f3---kivawiritipebigog.pdf
- https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/fe16c41996d3f632e67805aaa5c71c2c/86037419501.pdf
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160c2f6abcbd43---wujutikowotaxot.pdf
- http://zs-g.jp/app/webroot/js/ckfinder/userfiles/files/saziwupatoxexonozudulis.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=darcy%27s+letter+to+elizabeth
- 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_off00011b47.bin0c7fdd35523289037f36adb830b0fb95ccf6c975cc82180dc9e6d5fc02a1257f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B47 | 16160 bytes |
font_01_sfnt_off000144d6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x144D6 | 16792 bytes |
font_02_sfnt_off00015ced.bincc0469e6a0d81930558b9fde78745021b5ef6383d58873812a18cbabe9e07ca5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15CED | 10572 bytes |
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