MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple compromised or disposable hosting sites, which is a common tactic for phishing or malware distribution. The presence of numerous PDF links to potentially compromised CMS upload storage further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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 http://alarmy-kamery24.pl/userfiles/file/52861219389.pdf
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/npt983ljhr2ocqqd3odjtj1q86/bumupevelesigodejasepafo.pdf
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609aa8f7c8cb5---rakoropuguzorolisizejune.pdf
- https://www.straightmyteeth.com/wp-content/plugins/super-forms/uploads/php/files/d02d38007307277adeff6fb3c799806a/49890069561.pdf
- https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/n5pff1pun1hjiujtfom660tuml/18781504191.pdf
- https://www.escon.it/wp-content/plugins/super-forms/uploads/php/files/0cc7cd779b9c8b63325e658ca6c50c9f/movikodo.pdf
- http://martom24.pl/martom/userfiles/file/42332016922.pdf
- https://medicinasolidale.org/wp-content/plugins/super-forms/uploads/php/files/44329d4ea5f8c0a50f59387c5835382f/zeforetisiropoxenurej.pdf
- http://payassistinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ba3927afc9---97303350503.pdf
- https://www.reachcast.ca/wp-content/plugins/super-forms/uploads/php/files/0642da8567fcd1aa55d483fe6876518b/27469751448.pdf
- https://gretajensen.com/ckfinder/userfiles/files/5215059249.pdf
- http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/160a15a4ccdf70---dogosuximazox.pdf
- https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/e42db0718b75493cc3fe290424c25b55/gabufunuvugamezalaw.pdf
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/c10b65277e21e87c56995f22392585ab/falulu.pdf
- http://arcadia1973reunion.com/clients/3/33/33cb7023d77084166ed027ca16b579b7/File/83471175118.pdf
- http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/7e32992c89e1999b9b0dba29d0f903fa/89278966044.pdf
- https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/93ac99bcf43b1bd2ca9b7dceb9a0910f/kokoguzugazab.pdf
- http://salinahighschool1968.com/clients/3/33/33fcb9b832a528c934b1ac42c6b88a99/File/92720827665.pdf
- http://nesthomes.in/userfiles/file/73524392998.pdf
- https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/lc0kacj07uoh9a0091fpk48fm4/71333707820.pdf
- https://wulf-sanitaer.de/wp-content/plugins/super-forms/uploads/php/files/ac9sfh9q3gh5hnntr2749k6f8r/sagimubap.pdf
- http://amazingindiaphotos.com/amazingindiaphotos//upload/fckimage/file/10682794644.pdf
- https://dietacud.eu/upload/file/powakewon.pdf
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160718147bb2ed---xesegesagerelo.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=remembering+the+titans+speech
- 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_off0000fca5.bind3fe676d1b705986283c96b6a477737ffc937ad661d632b1b94f936c462b543c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCA5 | 17076 bytes |
font_01_sfnt_off00012912.bin3e9be4177d4b69dd02626f285595f82d6f4be02a0b019621e10901c5a9f7cabd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12912 | 10840 bytes |
font_02_sfnt_off000141ae.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x141AE | 16792 bytes |
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