MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. The document contains a link farm pointing to various PDF files hosted on compromised or disposable domains, suggesting an attempt to distribute malicious content or phish for information. The presence of a callback lure heuristic indicates the document likely prompts the user to call a phone number, a common tactic in tech-support scams and phishing campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9888
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) 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 https://silverbirdmarketing.com/pages/images/file/94077632538.pdf
- http://inoxbienhoa.com/upload/files/vexegipugevodizifu.pdf
- https://www.auto-ecole-rive-droite.fr/ckfinder/userfiles/files/gefegegazuge.pdf
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613892392f018---kizisawamerakuxovejaj.pdf
- https://habibitours.org/ckfinder/userfiles/files/movudosekusakim.pdf
- https://brigitte-farner.ch/userfiles/files/pezoweralogobogesas.pdf
- http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/161365a4b268b1---5083777522.pdf
- http://julianina.dk/upload/file/91875660378.pdf
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/161425d8504ea8---jitesi.pdf
- http://coyada.com/up_images/up_images/23105434919.pdf
- https://pachetedeturism.ro/images/files/72995877263.pdf
- http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/q6lobc70mh6brio10meq5m1q95/fajugemenimizi.pdf
- https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/ap3apqfg17m9q7s9t87l61jh2b/431470637.pdf
- http://loveperfectionschool.com/upload/file/65410530579.pdf
- https://loyallcanada.ca/editor_files/file/42644362508.pdf
- http://murielbellhomes.com/userfiles/files/84472554630.pdf
- http://wellnesszeewolde.nl/site/data/ws/files/68437931107.pdf
- http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613b7758dfb48---41082058792.pdf
- https://democv.associasuite.com/imagenes/contenidos/files/xekarezagidonejapugofida.pdf
- http://yushendesign.com/images_fck/file/1631160107.pdf
- https://parlagame.net/calisma2/files/uploads/gaxarixopixaronut.pdf
- https://adesso-moosburg.de/images/file/19389707914.pdf
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/161390681b0291---5806259572.pdf
- https://milsagliksen.org/upload/ckfinder/files/wuximajis.pdf
- https://saint-florentin.charcutier-traiteur.fr/ckfinder/userfiles/files/4805295463.pdf
- https://sport-jicin.cz/dokumenty/38366067465.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=mg+combustion+reaction
- 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_off00010e51.bin10f337241b04a376275b486f4527de5d8ad0e65468299f02c59e941b26e7b355 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E51 | 10760 bytes |
font_01_sfnt_off00012721.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12721 | 16792 bytes |
font_02_sfnt_off00013f33.binea5a1c4a765f04417f8dc5b21382001d8d1d9a3f5454aae7cc4851a0df2eae09 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13F33 | 19468 bytes |
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