MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains numerous links to compromised websites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The ML classifier strongly indicates maliciousness. Although no scripts were directly extracted, the PDF structure and link farm heuristics point towards a phishing or malware distribution attempt, likely initiated via spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://ahkjt.com/upfile/file/78152716375.pdf
- http://harasim.cz/uploaded/files/33962890129.pdf
- http://big-blue-bus.com/pics/fotos/1/file/gedijenunetigab.pdf
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa10d7bc303---kusudeno.pdf
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3b1f4d5d88---xifubogekinageliselake.pdf
- https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/0c9c99b9e901b5d3424911fbc12edcf2/75482355860.pdf
- http://szyuangang.com/UserFiles/file///kijixuxiroxoloresivatim.pdf
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f462f11250d---7486060042.pdf
- http://ngpsusa.com/wp-content/plugins/super-forms/uploads/php/files/ovcdqcq5pfeahj594klm4ip908/ginefukoki.pdf
- http://studioschicchi.eu/userfiles/files/1927456342.pdf
- http://gndpta.eu/news_objects/files/xewowujim.pdf
- https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/9b50b66e86ffb0482179329b13e9ba02/mukawi.pdf
- http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160942fdb40d66---dunotij.pdf
- http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d4152ae52b---93565616856.pdf
- http://anhuifan.com/upload_fck/file/2021-5-4/20210504045822958286.pdf
- http://notariocprietoa.com/notaria/documentos/files/xowomuzevufukosafewuxuzo.pdf
- https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/16081627d3d843---24733939819.pdf
- https://stiff.pl/ckfinder/userfiles/files/marunakekogizajupek.pdf
- https://semsaesp.com/ckfinder/userfiles/files/81318727569.pdf
- http://centrlita.ru/archive/image/file/31073260312.pdf
- https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/t6ql5b20mprq82jqep2eteq8ft/48562790266.pdf
- http://mbcasc.net/imgs/file/74184256299.pdf
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d1e01790b6c---88875738271.pdf
- http://abwlondonblvd.com/uploads/files/garoso.pdf
- http://worthingtonpark101.com/userimages/xumexepodurufa.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=salary+offer+letter+example
- 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_off0000f2ef.binc9ea6946219e9eb3d2db98de0006c9656a529953bd31122b97993aaa49f5636a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2EF | 17316 bytes |
font_01_sfnt_off0001201b.bin779f5f12a30bc55899c191430e5390eb40ac0c682edd697b5429f13dd6320f98 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1201B | 10448 bytes |
font_02_sfnt_off000137f0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x137F0 | 16792 bytes |
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