MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
This PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a link farm with numerous URLs pointing to disposable hosting and compromised CMS upload directories, indicating an attempt to redirect users to malicious sites. The presence of a QR code lure further suggests a phishing or social engineering attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://sinorarechem.com/upload/files/kerumetusodaz.pdf
- http://cherryontop.pl/upload/fotki/file/59215704435.pdf
- https://codecs.ro/images/file/sesuzakurewobivisugi.pdf
- http://ngocvietbungalow.com/upload/files/19804381917.pdf
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/16130747b319ef---1257995867.pdf
- https://lentes123.com/aym_image/files/78704128453.pdf
- http://basketaci.cz/UserFiles/File/13913015377.pdf
- http://startent.ru/SITE/files/editor/file/ximavasewegijineradi.pdf
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613b345a41706---walefivumebivemed.pdf
- http://zamgph.com/uploads/file/060400502241.pdf
- http://saktigroup.in/uploads/luxaf.pdf
- http://cerrutistudio.eu/userfiles/files/fusosijorovugomip.pdf
- http://acelybio.com/upload/files/58568127890.pdf
- http://a-aqua.fr/ressource/site-image/files/vojusiviro.pdf
- http://telecycling.org/files/file/20699940205.pdf
- https://www.fyna.com.au/application/third_party/ckfinder/userfiles/files/virolilutamurifesanefevo.pdf
- https://radmangroup-ye.com/rgfiles/file/vabuxu.pdf
- https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/481d199d1b3b47c4481211faf35ebe90/21344738164.pdf
- http://gidromall.ru/img/uploads/file/8397860288.pdf
- http://spad.kr/userData/ebizro_board/file/55591459214.pdf
- http://www.sospapa24.com/lib/ckfinder/imgupload/files/58577816593.pdf
- http://www.slenderclub.cz/ckfinder/userfiles/files/megufifexubirenegazuvokoj.pdf
- http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613db57c585c9---13626918964.pdf
- http://szermgrt.hu/uploads/ckfinder/userfiles/files/zudutinakitogadu.pdf
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/f64032cd26804952ffb84331eb4fc70c/67780846592.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=android+system+akku
- 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_off00010edb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EDB | 16792 bytes |
font_01_sfnt_off000126ed.bin85f19808d21a594d3507a82f3d516c78b83db15a73b8a516e71895fe3ce8461c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126ED | 17716 bytes |
font_02_sfnt_off000154ca.bin06c7010fdb06880d11fd143c4f714a95c9aaa782d96dc57b4dda2230dad925f3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x154CA | 10652 bytes |
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