MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It functions as a link farm, containing numerous URLs pointing to compromised WordPress sites and other disposable hosting. These links likely serve as a distribution mechanism for further malicious content or phishing attempts.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/160afd0332ffe2---kovatubavidogagupapi.pdf
- https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/180911ae8e5c8fb14e5f87d5f8102807/gifoterewemibow.pdf
- http://hyperasp.net/userfiles/file/xobubev.pdf
- http://zhengfutz.com/v15/Upload/file/2021512204399300.pdf
- http://richfield1962.com/clients/4/47/47516dc9824f3897220912ef171c404f/File/46605844863.pdf
- https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/aed78b13a2ae3a08a92fd5cc17e2a60f/tupawamid.pdf
- https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/9b8f06b0a733cc1de7a2630d3ac7954a/naviv.pdf
- http://www.tobywells.org/media/fckdir/file/95653269.pdf
- http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b9d9737bc9a---somobap.pdf
- http://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/160b7626c7ec39---sisor.pdf
- http://asea-admin.com/_userfiles/file/20210525094304.pdf
- https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/cfd94660f5b7ebddc41731e92a7cf3d1/63006072142.pdf
- http://aiswaryamatrimonials.com/fck_uploads/file/taxivuxisiwonip.pdf
- http://citysuji.com/ckfinder/userfiles/files/voduxazu.pdf
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1607dd4cd24482---tisibojiwumigaxov.pdf
- http://scbczy.cn/up_files/file/20210616_023405.pdf
- http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cb9a5f20359---reneji.pdf
- http://eksan-ltd.com/userfiles/file/kutozerezi.pdf
- http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a137f4d9810---11175318157.pdf
- https://www.endthestigmacounselling.com/wp-content/plugins/super-forms/uploads/php/files/gth02ot19rfr5g7gbnnpj2li98/65944366423.pdf
- http://101-games.ru/images/uploads/files/bilulanuje.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=made+new+in+christ
- 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_off00024c53.bin2930a09e09b61a26f800c3b948d617b7fa9f4419afb4406a25c4785dc4347237 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x24C53 | 29504 bytes |
font_01_sfnt_off00028d37.bind184347ba395f4881c1f8d58fbf942689d8d350fa8ee73baed74df87397c837a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x28D37 | 10380 bytes |
font_02_sfnt_off0002a4ad.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2A4AD | 16792 bytes |
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