MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document impersonates a cloud file-sharing service, a common lure for phishing attacks. Multiple heuristics indicate this is a link farm designed to redirect users to malicious content hosted on compromised websites. The ClamAV detection and ML classifier strongly suggest malicious intent, likely to deliver a secondary payload or phish for credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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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Cloud document impersonation lure medium SE_CLOUD_DOC_LUREDocument impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
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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://koreaseals.com/ckfinder/userfiles/files/xabapizirolovafit.pdf In PDF document text
- http://clubmaniacr.com/campannas/file/lenidobajenimezovowawata.pdfIn PDF document text
- https://cspdental.com/wp-content/plugins/super-forms/uploads/php/files/9973ac88bce24098226b00fdd615075c/57496685133.pdfIn PDF document text
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/nm201tglif4tq2p1803h2jc95n/pesapon.pdfIn PDF document text
- https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/t4tr6o8j1cueuh6tipd1hqpn7k/47291262511.pdfIn PDF document text
- https://skazkavdom.com/wp-content/plugins/super-forms/uploads/php/files/1c92889bbe6e16979f24ebe23c02a42a/vaxisifemomirofavu.pdfIn PDF document text
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079d8871aebc---39336732684.pdfIn PDF document text
- https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/050fba2df2ead7403a0319ec866585f7/2859496895.pdfIn PDF document text
- https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/a18280214d4259839ea95fbaebeec613/zukibosufibomig.pdfIn PDF document text
- http://ajtoablakcentrum.com/_user/file/82296128192.pdfIn PDF document text
- http://reguitti-engineering.it/userfiles/files/57979018684.pdfIn PDF document text
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160a4f1b12ae2b---xirimubediwarifofesuvidi.pdfIn PDF document text
- https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/d8kka7foctu70btm3inu869l45/pevuximamirezowiwofusagir.pdfIn PDF document text
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/f52f330b90f688bdcd68389f40138412/kilugalaxe.pdfIn PDF document text
- http://ebonit.light.bg/includes/libs/ckfinder/userfiles/files/jufugevuw.pdfIn PDF document text
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160ac3802be139---52783134484.pdfIn PDF document text
- http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/1608365f29bcd7---rinavesisifopaxu.pdfIn PDF document text
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/160baa623c1d22---subelavizarigudip.pdfIn PDF document text
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/1c30d133b92f7d3f7a25101858c1c143/biwaxadavedesen.pdfIn PDF document text
- https://shiokerbau1.com/contents//files/guvilutiwuwadoguw.pdfIn PDF document text
- http://bukharageorgia.com/sites/default/files/file/mukilujojo.pdfIn PDF document text
- https://radmangroup-ye.com/rgfiles/file/xatitapinebabu.pdfIn PDF document text
- http://hutbephottaihaiphong24h.com/upload/files/66219134306.pdfIn PDF document text
- http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ac99504887---bidoguvisedavimavutixi.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=nuance+power+pdf+advanced+3+serial+keyPDF 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_off0000f85a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF85A | 17676 bytes |
SHA-256: 55942ea9cc7ef07451797516744a5d2c451e452535982973d75b19ec9a58bc6b |
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font_01_sfnt_off000126e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126E4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013efb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13EFB | 11120 bytes |
SHA-256: 5a25fe2aa3ea7af6a0853c949e3dd7b306e9ff1b01e20adc1850e93e75b235b8 |
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