MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by multiple heuristics and a machine learning classifier as malicious. It contains numerous external URIs and links to compromised WordPress upload storage and disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection further confirms its malicious nature, likely serving as a phishing lure or a distribution point for further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://laborke.ru/uplcv?utm_term=in+a+fcc+arrangement+of+a+and+b+atoms PDF link annotation
- http://dxczx.com/ckfinder/userfiles/files/20210901_090751.pdfIn PDF document text
- https://woodfur.in/userfiles/file/lapuxezupifiwovid.pdfIn PDF document text
- http://akiisushi.com/uploads/files/10043016389.pdfIn PDF document text
- https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/md9nhhqa5g8mlmp68eas41qcrc/73985070669.pdfIn PDF document text
- https://machnhaduong.com/images/uploads/files/norebov.pdfIn PDF document text
- http://hainescentreasia.com/images/file/49347927753.pdfIn PDF document text
- https://euronet.stonavka.cz/webpagebuilder/ckfinder/userfiles/files/52044261972.pdfIn PDF document text
- http://veraschwemmle.de/fckdata/file/deputozizupuwoz.pdfIn PDF document text
- http://giaydantuongphongkhach.net/images/news/file/kinekosositomakaxo.pdfIn PDF document text
- https://armagedonspedycja.pl/files/file/47351124031.pdfIn PDF document text
- https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/cfsarh5b8ujri81qkohkkre5i9/wuzaruzixewuzizuzupexu.pdfIn PDF document text
- https://chulintemple.house-well.com/CKEdit/upload/files/77027839841.pdfIn PDF document text
- https://idd.no/ckfinder/userfiles/files/85975821063.pdfIn PDF document text
- http://sungwoneng.com/upfile_editor/2021/files/pafavidoti.pdfIn PDF document text
- http://leebyunghun.kr/new/upload/board/files/44823015680.pdfIn PDF document text
- http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613ff0bff2ed5---59630282425.pdfIn PDF document text
- http://stavo-bazar.cz/userfiles/file/98734696270.pdfIn PDF document text
- http://n2nnetworks.com/files/others/57318737960.pdfIn PDF document text
- https://allora-tour.by/var/upload/file/fopula.pdfIn PDF document text
- http://temple.mo/userfiles/file/tetojipimoseti.pdfIn PDF document text
- http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/df74b022ee1d3a98afcfdb5725411cc2/zegutowapo.pdfIn PDF document text
- http://grupopiscis.com/upload/files/74820722910.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613d3f9eef1b0---fogow.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ae50.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE50 | 10772 bytes |
SHA-256: 27d0ead863aebb2497e15221c883bce42e60c72cd6cc5b63353408205eb33771 |
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font_01_sfnt_off0000c6f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6F1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000df03.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF03 | 15712 bytes |
SHA-256: 0490ffebfb25f15252d82cd10bd98b1f38f1b0fcc1b484506a9a17ba07c7a81b |
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