MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It functions as a link farm, containing numerous URLs that point to compromised WordPress upload directories. These links likely lead to the download of further malicious payloads, indicating an attempt to exploit users through a malicious attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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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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://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c6f34b778f6---rawenimepukogiw.pdf
- https://muzeumkonstancina.pl/attachments/file/26293857295.pdf
- http://dlevitin.ru/fck_editor_files/files/donevilerobojine.pdf
- https://tonwen.org/userfiles/file/11838545334.pdf
- https://samowar.ch/upload/file/kobupemazuzefu.pdf
- https://legacyltg.com/wp-content/plugins/super-forms/uploads/php/files/4969cf2fde63d567a2809fc9d89417e7/jidolesorubikijepeg.pdf
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/b71bc73c5af89a11f6eb1926e64c30c3/gisudone.pdf
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d8cda60cbb---76292658187.pdf
- https://terminal.hr/userfiles/file/17192386319.pdf
- https://healthmatters.me/userfiles/file/tikopik.pdf
- https://xn--80aanugxqi.xn--p1ai/admin/ckfinder/userfiles/files/27437882484.pdf
- https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/428c5a4d0df6ea09fd6524da7420de28/pupazopetasimoribisepose.pdf
- http://seamacros.com/upload/file/zaxaxigirejilifemizatige.pdf
- http://amandamaitland.com/images/file/fuxesoluvetikivirusuzij.pdf
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608ec2799d4d6---divelarigonoragoxezujuzos.pdf
- http://alnoorcity.com/userfiles/file/kigaxote.pdf
- http://epmachine.ru/d/files/16709850662.pdf
- https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/b29dc80690f454b8142cbe2151f564de/11190149014.pdf
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a456f793add---ranan.pdf
- http://bahsclassof1965.com/clients/1/1d/1db829f64c2e26d3b32b12ccabba4d7c/File/jijuke.pdf
- https://www.mysmilestudios.com/wp-content/plugins/super-forms/uploads/php/files/15b0b5959acc2f0d3585466752ffdb66/gexixajos.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=lv+ejection+fraction+60
- 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_off00012e5f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E5F | 16792 bytes |
font_01_sfnt_off00014671.bincf9115b52c7fa33013a673db8a1896d48c3cd92841dcd5f526f955a8a3c4b4ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14671 | 17696 bytes |
font_02_sfnt_off0001742b.bin3490b09a1449d928093a2afaded0dcaaf156a590cc26db1e8b61b47668afa5b6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1742B | 10560 bytes |
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