MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics indicate the PDF contains a link farm pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution scheme. The 'SE_CALLBACK_LURE' heuristic further suggests a callback phishing or tech-support scam pattern, aiming to trick users into contacting malicious actors.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
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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://bjsprt.com/uploadfile/file///2021061306565117.pdf In PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a24c187093e---82648604468.pdfIn PDF document text
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/becjq7355pi5ho5hactd014l41/7806415987.pdfIn PDF document text
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/64jdfm7oe7r5tt5r02ghucee74/vovagetuzuwozedavejabun.pdfIn PDF document text
- http://klasykarozrywki.pl/public/images/fck/file/49263506490.pdfIn PDF document text
- http://sxhk365.com/uploads/file///55845228623.pdfIn PDF document text
- http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608769ff27945---27767724222.pdfIn PDF document text
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/398b4de379fa8e464f3c050abcf0f15a/81129991647.pdfIn PDF document text
- https://daleplumbinginc.com/wp-content/plugins/super-forms/uploads/php/files/d7088c4c09e5caa9f588c06c9711bbdb/74883173263.pdfIn PDF document text
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099bc57c49af---rezelul.pdfIn PDF document text
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/mbhpd75cvsntdu61v0g84pvncj/12370017584.pdfIn PDF document text
- http://mindatpeace.us/uploads/files/fiwojubusilafid.pdfIn PDF document text
- https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/gvmfk69ee1qavagdoslqnq7ee0/36773253414.pdfIn PDF document text
- https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/e6f79f7335c6de91bef7ae3c0165c092/xesar.pdfIn PDF document text
- https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/477237e3f0fd2c49e7be8dc6cdca8ef2/botosa.pdfIn PDF document text
- https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/0eeb789e12bbc664f80ea87ffadda176/nesunosil.pdfIn PDF document text
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ba6a8c5af6---76429648468.pdfIn PDF document text
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1608ac77d81590---barawuvejafe.pdfIn PDF document text
- http://ixtvs.de/_upload_bilder/_filemanager/file/nipaw.pdfIn PDF document text
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/160b0892675fc9---vujodojagawodoremevapozo.pdfIn PDF document text
- http://josephlillianmorrisfamily.com/clients/59960/File/10181989929.pdfIn PDF document text
- https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/6e5459f255692324816016149a329b15/80808291513.pdfIn PDF document text
- http://mobilephleb.com/clients/2/2d/2d2188d13063160162e6e2bbcdac547d/File/kogesuvivokuwosa.pdfIn PDF document text
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c0cf9799dd6---zakigobopekelu.pdfIn PDF document text
- https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/ba087ef44299dad3683aa50cd2ea1102/70439993825.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=electrical+machine+design+viva+questions+and+answersPDF link annotation
- 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_off0000e81f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE81F | 11196 bytes |
SHA-256: 558294eaa3182c2cbda22708b5206e26a4dd325eb5f80496fc50634809244b14 |
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font_01_sfnt_off000101a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101A6 | 17676 bytes |
SHA-256: f05562b853a25f486c9203f97b50c361020c62a6c5c224a7ea2795f9aacb3f42 |
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font_02_sfnt_off00012ff5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FF5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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