MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to compromised WordPress upload directories, suggesting an attempt to trick users into downloading further malicious content. The presence of a 'download button' heuristic reinforces this phishing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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 http://www.zulfugar.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160afa32b020f5---68001559383.pdf
- http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/1612613e5e5aa4---67034951693.pdf
- http://cropscipublisher.com/files/upfiles/file/80217585473.pdf
- http://erpsamik.com/ckfinder/userfiles/files/feroxititore.pdf
- http://fashioneducation.ru/userfiles/file/gatefomu.pdf
- https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/8995dtm0h83ncfeon3clm5ckek/77044071118.pdf
- http://enovosti.info/ckfinder/userfiles/files/92143568196.pdf
- https://charteriraq.ir/basefile/charteriraqir/files/jupixefazi.pdf
- https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/4cce97c8aa35334abcb56c9210ead01c/40373550096.pdf
- https://rescue.bg/wp-content/plugins/formcraft/file-upload/server/content/files/160945a59877df---70352871622.pdf
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad6d8c15fb6---84454565885.pdf
- https://medok18.ru/wp-content/plugins/super-forms/uploads/php/files/5b0a8b7c0333a6df48403df777d68ce4/nefivukexalaf.pdf
- https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a21d6c7711f---vodok.pdf
- http://seja.lv/assets/ckfinder/core/connector/php/uploads/files/10628961511.pdf
- http://technocom.pl/editor/file/dagivuxasugixogufuzotakak.pdf
- http://thermcom.cz/userfiles/file/38844793094.pdf
- https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/3c3bb99de88ef0c88ba4b7003f518b21/pisanobogomixa.pdf
- https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/02e217bc891cffe86a5cb00966020cbd/69490184733.pdf
- https://www.helpforbusymums.com/wp-content/plugins/super-forms/uploads/php/files/d1a9b3ce8d0d64e257b2c7a5169a0a3d/96691269229.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a245690b5b9---89069527734.pdf
- https://eventaipei.com/upload/files/55597351488.pdf
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079f827d59e3---xepisezusenetewog.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=how+to+make+drawing+in+ms+word
- 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_off0000ff8f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF8F | 16792 bytes |
font_01_sfnt_off000117a1.binf846d62b9996440fac35d1f73cc2ebaa1a83d68c8c0d090ba88d25074dcd4b60 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117A1 | 17960 bytes |
font_02_sfnt_off000145e3.bin0b3c2656a6cc4796ba1f63238b8448b7f50c04b814be9009ed00c474284b313e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x145E3 | 10716 bytes |
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