MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm hosted on compromised CMS uploads, suggesting a phishing or malware distribution lure. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards an attempt to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9902
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 https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/71917bce25ce2041041dd06ad2aa3e63/nanobu.pdf
- http://www.sensible-seeds-premium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160923580b1f19---larixolijubawef.pdf
- http://lempreintedubois.fr/userfiles/lempreintedubois.fr/file/1142441186.pdf
- https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/786e5f4b7a4f5a44e3e4802b5b514a8f/xezugogevigonij.pdf
- http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/160a7ec0c6b961---fowevibudafivoloxuletos.pdf
- https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c68d489755---movajugokog.pdf
- http://dunajecbiala.pl/upload/File/87911362791.pdf
- http://flyags.com/editorResources/file///kapupodobimalefux.pdf
- http://www.peretprod.ro/content-images/file/20224525579.pdf
- http://driver-jazda.pl/upload/file/48511345920.pdf
- http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085599a0a941---89254887158.pdf
- http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/k0oqtjvq4vu38p0jpjiv5om646/53062457216.pdf
- https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607fdac256698---rofiwudadirivemuxizujaba.pdf
- http://www.tobywells.org/media/fckdir/file/ramitefokoj.pdf
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609290cc9603e---42058006351.pdf
- http://sodrex.pl/userfiles/file/towedurejibesuzavuku.pdf
- https://bechtoldpaving.com/wp-content/plugins/super-forms/uploads/php/files/ece6cdd32513c0eb9b78e00d9e298bd0/83121099703.pdf
- http://drironcat.com/images/file/58474040865.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2b0c890dac---biregupenipo.pdf
- http://www.findvoters.com/userfiles/file/49806967336.pdf
- http://bioscipublisher.com/files/upfiles/file/98559176877.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=scale+master+pro+manual
- https://sharpspringwww.kinsta.cloud/wp-content/plugins/super-forms/uploads/php/files/757f9ecad4ba8e99bc71b2259028d375/fupanebomurifajof.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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e40e.bin86d57cf3f3772149e482bb35a6e6f9388d07eed4f426d8cc86ac30ab49bb7812 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE40E | 18760 bytes |
font_01_sfnt_off0001144b.bin00b1f632e8afe72716c8bcdb76b7901b56c060d1dc0f96f3f5c1b8373b85735b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1144B | 16140 bytes |
font_02_sfnt_off000129be.binbf85a083864b7af664d907e6d312cefcdc7a7a2102e6e8bbb2d6ef8ee36d69c9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129BE | 1848 bytes |
font_03_sfnt_off00013256.bineae1470f91907020e2f0776333a6a89f949ba9e9506c5b2257d02a52c61c5cd3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13256 | 10616 bytes |
font_04_sfnt_off00014a9b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14A9B | 16792 bytes |
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