MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, many of which point to compromised CMS upload directories or disposable domains, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly support its malicious nature, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://4bx.pl/public/file/34887958880.pdf
- https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160da2c6ba691d---ganamelusitudizidenakuxin.pdf
- http://cityhelps.org/clients/6/61/61afa7a028a8e04f14432b0fece6f2b0/File/zipafolugonoj.pdf
- http://vantaibactrungnam.vn/upload/files/peketunufi.pdf
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/2e53dd097a62567c8b9df9c96ecf269d/lokatibeninigiru.pdf
- http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbd025333d4---nujokimupipebaz.pdf
- http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf59bbc6015---wanapuviteruwixematoxemo.pdf
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/b661ba546f120004ed39717f7fc215a5/63810767037.pdf
- http://fiumaradelsossio.it/userfiles/files/fumugefibuzajaduzimuk.pdf
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607766e9aaca1---ruvupakobefopote.pdf
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/16090b337d1044---67711814136.pdf
- http://cloverpark1960.com/clients/1/17/17c242f0968dc4bce059666b43fbd075/File/fodezizofakotefojebu.pdf
- https://qualitymattressfactory.com/admin/userfiles/file/xapomirujapedoli.pdf
- http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a28dfb7a76b---zelesepo.pdf
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/98206ecfb30f947204bb98b16de5f478/37297899992.pdf
- http://lineshare.net/upload/files/20210703070824.pdf
- https://pinyardim.com/calisma2/files/uploads/zoramor.pdf
- https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/1ca504a23b41c01a17dfc71c846bc417/69936725480.pdf
- http://auxerretv.com/content/public/file/gazamaginexegemu.pdf
- http://julianowka.pl/ckfinder/userfiles/files/48448490486.pdf
- http://www.ambredore.com/wp-content/plugins/formcraft/file-upload/server/content/files/160910e3c4f213---rifusoduxezepituw.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=editing+exercises+for+class+10+cbse
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f896.bin9782337fae2294636c05359db020f4863b0ef032797f591a7f2f5fe94177c663 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF896 | 11052 bytes |
font_01_sfnt_off0001123f.bin48ddf496b25c26731799a37daf112ec907a0f07efd1848cf717579485846cb8e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1123F | 17092 bytes |
font_02_sfnt_off00013e72.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E72 | 16792 bytes |
font_03_sfnt_off00015683.binda79484a7f94e028a8871d907a282bdc2df095dfef79f7b1f2af1efeeab75da7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15683 | 16224 bytes |
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