MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, exhibiting characteristics of a phishing or trojan delivery mechanism. It contains a link farm pointing to compromised CMS upload storage and disposable hosting, suggesting an attempt to host malicious content. The 'SE_INVOICE_LURE' and 'SE_CALLBACK_LURE' heuristics indicate the document may be disguised as an invoice or a support-related notification to trick users into clicking the malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9957
Heuristics 8
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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) documents that carry no urgency or charge/dispute escalation.
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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://doks-films.com/pcms/content/file/18077559981.pdf
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089cad809d11---8076552735.pdf
- https://northstarexecutivesearch.com/wp-content/plugins/super-forms/uploads/php/files/c95d275ce90f318bbdf6225127efca1a/60777629507.pdf
- http://dietetyka-24.pl/images/files/33637509851.pdf
- http://hoaisonland.vn/upload/files/gabifubotolutivijezuziwiz.pdf
- https://vishalahospitality.com/ckfinder/userfiles/files/86000532120.pdf
- https://towa-aaa.jp/userfiles/file/15938601790.pdf
- https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/b39628149a73934d5356e0bed11ddf42/rodonipedanilerosevana.pdf
- https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/81shlf95sbkphrl1652jg5rjm1/15142682122.pdf
- https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/2e302d6006ec0ed23f42630e1107512c/83554428612.pdf
- http://ikcem.org/userfiles/file///43131657932.pdf
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f250c455508---97466191580.pdf
- http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608eeb8e9cff3---2865955110.pdf
- https://tlpnw.com/wp-content/plugins/super-forms/uploads/php/files/4c5832f74540cc7a90650d37e853bbaa/gogepisanedawe.pdf
- http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1610e62bc5c95d---nisel.pdf
- http://www.motorradfreunde-toggenburg.ch/up/files/17951182873.pdf
- https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/rd30vdkfkgp7rn4g3jhah0vlak/62877047518.pdf
- https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/add3b3fc0e8eeddc01dc87f7b5dd9ae1/28350006432.pdf
- http://thegreenlegacykeepers.com/clients/e/e8/e8dc17949b7ef813e9937e453902477f/File/16473653958.pdf
- https://tortugafilms.ca/adminfiles/file/mapesofepinisexabome.pdf
- https://ols.lighting/wp-content/plugins/super-forms/uploads/php/files/5906d0ac0273d2a5f4e8be81860474ce/10380410490.pdf
- http://mywayrtk.info/userfiles/file/15859909074.pdf
- http://custom-mugs-factory.com/uploadfile/files/19427381095.pdf
- http://naturalmis.com/userfiles/file/45169007745.pdf
- http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606f5e40b78bb---67802000429.pdf
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/16093b5a77bb93---63170057289.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=how+do+i+get+my+western+union+number
- 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_off0000e8c5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8C5 | 16792 bytes |
font_01_sfnt_off000100dc.bin977316d2cc443191c5579d683e9e8c4ba9681e0941909adf62f24186bbd39e3b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100DC | 10812 bytes |
font_02_sfnt_off0001199a.bind739ccce33420e478ee0c8cc724df147f20f4dc1bcf561a726e05a819fe6dbfc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1199A | 17436 bytes |
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