MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF document that contains numerous embedded URLs pointing to compromised WordPress sites. These URLs are likely used to host phishing pages or further malware, as indicated by the 'ML_NYX_PDF_MALICIOUS' and 'CLAMAV_DETECTION' heuristics. The presence of a link farm on disposable hosting and compromised CMS upload storage suggests a coordinated effort to distribute malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9934
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://inwebjor.ru/uplcv?utm_term=step+up+to+writing+worksheets+pdf
- https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/667f785c937c74c72443f9874f45239f/91039840759.pdf
- http://middlegeorgiacoinclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607033eeb9c99---94220945219.pdf
- https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/8a11ea9aadc9b9b80c88606da0aab788/rafaxatexakaxev.pdf
- http://thietbixanh.net/uploads/files/14210070851.pdf
- https://baileyelectrical.services/wp-content/plugins/super-forms/uploads/php/files/voqmnkcldpf7es0l12sjrmnva4/23993189633.pdf
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/0c9889450572da44367b40e4c9c97aa2/72065626964.pdf
- https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608a90a10cf70---panomadupami.pdf
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/i6g59sfvv94qer0l43mcq9ac9v/94564612745.pdf
- https://seitonsolutions.com/ci/files/91692650312.pdf
- http://shlawllc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/26555191853.pdf
- https://defaico.com/d/files/74079848155.pdf
- http://club-integra.ru/userfiles/file/99426729829.pdf
- http://angeladaniel.eu/uploads/files/73318741541.pdf
- http://azizolace.cz/images/file/6277505177.pdf
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/ce7781a27baeefbdb374373a518f6c88/6663324485.pdf
- http://robertoantoniz.com/resources/original/file/42625388339.pdf
- http://mobydick-band.de/fckdata/file/zobol.pdf
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cb3465dce6---letukevojofatuka.pdf
- http://sieuthibongda.net/ckfinder/userfiles/files/mabixinejesikef.pdf
- http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/3f902j3hc3jp78bimdcukdn045/39379698948.pdf
- https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/5rl6nnpq5s3i244nhhc8el5be3/badojuwupuwuvogaba.pdf
- https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/198ab856bcf714730fdc50deb758124d/98773062050.pdf
- https://cursosgratuitosonline.es/wp-content/plugins/super-forms/uploads/php/files/1i84sg1bm879b5jgfljv0jqjsh/neviligalizusulud.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_off00012c64.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C64 | 16792 bytes |
font_01_sfnt_off00014476.bin39fe17a6b4d45c334a8a78ba7a046a2d9c26b13204f5a0764d7abbff2b3b966d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14476 | 17668 bytes |
font_02_sfnt_off000172c1.bin9927bd50df925bb19e4391299c8577af4fde9b79c2eb9a72ead8bf17f0296d37 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x172C1 | 10924 bytes |
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