MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to multiple compromised websites, suggesting an attempt to trick users into downloading malicious files. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of a 'download button' lure further supports this phishing-like attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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 https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/36d8723876d87cc8d8a4de459b0ab687/79482952763.pdf
- https://larioenergy.net/uploads/file/gejezujulefovomilut.pdf
- http://munsusa.org/userfiles/file/20210519001346.pdf
- http://msci.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/160bec373cc4b5---fakeluj.pdf
- http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/79435225360adde281153f.pdf
- http://opalsolar.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607777acc7e66---nekujadudefasoniralujeti.pdf
- https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f673c1e671---lorulezekoxinus.pdf
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084cedd5163e---9635638269.pdf
- https://agatanorek.com/files/file/64378708360.pdf
- http://leton.pl/userfiles/file/liludafaxiwodifur.pdf
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/1f3fd364c9a4898d8ccef0b0439241e5/6321653118.pdf
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/dllqqvqfort2opnbsoaapcckbb/zefosusetabil.pdf
- http://transcash.com/ci/userfiles/files/62920332823.pdf
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/73fbnpopb2knf03qspq69bjmk0/kutowazak.pdf
- https://asiaviews.org/wp-content/plugins/super-forms/uploads/php/files/n4sct2rv5u38cs377a18ve9l74/mofawejazeludezakawoti.pdf
- http://asea-admin.com/_userfiles/file/20210502154724.pdf
- https://baohohoanglong.com/userfiles/file/37540055569.pdf
- http://commune-bourre.com/userfiles/file/vigowated.pdf
- https://avenue102.com/uploads/file/noweri.pdf
- https://bookatowncar.com/userfiles/file/64768895407.pdf
- http://toonesk.com/upload/51575226605.pdf
- http://e-skala.pl/userfiles/file/sagusidobidapazu.pdf
- http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf78bc33397---59256785521.pdf
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160b2813ba8c0b---63890198028.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=weight+lbs+to+kg
- http://crossfit28.com.s125853.gridserver.com/siteuploads/editorimg/file/kosuvasitobazefer.pdf
- 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_off0000edfa.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDFA | 16792 bytes |
font_01_sfnt_off0001060c.bin9df72f68cdfc007a92782b4e57746b3999ef91a7e36f2acc6ec9a3626c4d963a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1060C | 17408 bytes |
font_02_sfnt_off00013364.bin293b81ee90ef98119b285c2a168209f6e4a905f46ed36480f2d043dbf6f82d34 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13364 | 10244 bytes |
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