MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, with heuristics indicating it's a phishing lure disguised as an invoice. The PDF contains numerous embedded URLs pointing to other PDF files, suggesting a link farm or a mechanism to redirect users to malicious content. While no scripts were directly extracted, the nature of the embedded URLs and the phishing lure heuristic strongly suggest an attempt to deliver a secondary payload or phish for credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9911
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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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 http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161324737b645e---19518140850.pdf In PDF document text
- http://gugugroup.com/userfiles/pebija.pdfIn PDF document text
- https://meganimal.pt/site/upload/file/59078682934.pdfIn PDF document text
- http://soskuwait.com/outscapes/admin/ckeditor/uploads/ck/files/22391092365.pdfIn PDF document text
- http://tverzhilservis.ru/foktver.ru/ckfinder/userfiles/files/43452459282.pdfIn PDF document text
- http://aeklaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/69470814161.pdfIn PDF document text
- http://profstil.az/userfiles/file/82209281353.pdfIn PDF document text
- https://autosaloncenter.com/uploads/file/56491427231.pdfIn PDF document text
- http://lasantitosrestaurant.com/userfiles/file/suzigigu.pdfIn PDF document text
- https://essaidafm.com/uploads/FCK_files/file/zugetigadu.pdfIn PDF document text
- http://imi.vc/upload/files/61926010482.pdfIn PDF document text
- http://dalhousieretreat.com/cote_dor_import/admin/ckfinder/userfiles/files/42157774009.pdfIn PDF document text
- http://wxeina.com/userfiles/files/62456386438.pdfIn PDF document text
- http://dragonspond.com/uploads/files/zezuresexeki.pdfIn PDF document text
- https://cubic.is/userfiles/file/kukutiwe.pdfIn PDF document text
- http://jyczgj.com/UploadFiles/file///2021090506055098.pdfIn PDF document text
- https://magicdiscoradio.hu/userfiles/file/kopores.pdfIn PDF document text
- https://highfieldhousehotel.net/nbloom/fckuploads/file/vodewarotaximefaji.pdfIn PDF document text
- https://pastijptoto.com/contents/files/14922802787.pdfIn PDF document text
- http://solis.altrodesign.eu/ckfinder/userfiles/files/90402114762.pdfIn PDF document text
- http://immobilieninvestors.eu/userfiles/file/73211206327.pdfIn PDF document text
- http://www.hausman.eu/images/wyswig_images/file/nexunegidilawasivekuwume.pdfIn PDF document text
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130f9f9daf10---gimipu.pdfIn PDF document text
- https://jeevadhara.org/work/london/userfiles/file/topaxiroraz.pdfIn PDF document text
- http://ff-engineering.com/userfiles/files/gavomoxabopudadanomewux.pdfIn PDF document text
- https://eobliecky.sk/userfiles/file/79561497864.pdfIn PDF document text
- http://first-group.kr/ckupload/files/69486489742.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=input+output+and+memory+devicesPDF 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_off0000d464.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD464 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ec7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC7B | 10860 bytes |
SHA-256: fd9c8b503f9d075c7ba2c5be529de24323cc953fbc2141ee81057c77ee387a4c |
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font_02_sfnt_off00010596.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10596 | 17376 bytes |
SHA-256: 70264aeca7d73c3c7260e5e847bcb42c9cbe081d6807463534b470ce64d0731f |
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