MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to various PDF files hosted on disposable domains, a common tactic for distributing malicious payloads. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely instructs the user to open a password-protected archive, a method used to bypass gateway security. The ML classifier and ClamAV detection strongly suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9907
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://ourhkg.com/UPFILE/userfiles/files/webaguleka.pdf
- http://smepil.com/ckeditor/userfiles/files/32114720922.pdf
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085bf49d1462---razazuvifetusenomukik.pdf
- https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/b6143b5cd41618e2277246db6badf5db/titulawurepu.pdf
- http://mrs724.ir/basefile/drtiketcom/files/nemamo.pdf
- http://cc-loges.com/uploads/file/34299785592.pdf
- http://mientaytourist.com/uploads/files/medozumimataremitozatinux.pdf
- http://udclassof1968.com/clients/74076/File/voligupakinaloj.pdf
- http://goraku-sangyo.com/userfiles/file/xunizinenafopunup.pdf
- https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb9eb463bea---waduruwukenegesuvemivipav.pdf
- https://pet-fashion.ro/mm/file/18658629516.pdf
- https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608665298adcf---41267163404.pdf
- https://aslimitada.com/userfiles/file/95991097711.pdf
- http://heyumpnd.com/userfiles/file///gugerewesoputirajejexator.pdf
- https://sunwayhk.com/louis/STARKGROUP/ckfinder/userfiles/files/62544977362.pdf
- http://obrienbuilders.com/userfiles/file/87894781124.pdf
- https://fertilizerproductionprocess.com/d/files/tuvuvitutilabul.pdf
- https://www.mftelhas.com.br/adm/Editor/ckfinder/userfiles/files/wominuvedowakomagigosir.pdf
- http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf9ea0afa48---mugupasamepurukowazozota.pdf
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160e8aaad46807---nolikefus.pdf
- https://www.freshstartdigitalmarketing.com/wp-content/plugins/super-forms/uploads/php/files/1b4482e881d3509d593b8c45cc12914b/28498013949.pdf
- https://www.sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a41feece0d2---26282034647.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=los+primeros+martires+de+la+iglesia+catolica
- 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_off0001a814.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A814 | 16792 bytes |
font_01_sfnt_off0001c02b.bina851dabe0284fce64c0d2fadbc56f10a1aabc00cb11e97e034fbc04f00ba560b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C02B | 10712 bytes |
font_02_sfnt_off0001d891.bin1b99c4c7787b01ecea350d54f1cc1301ea5deb947f471681cb1a01d7640f682a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1D891 | 17752 bytes |
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