MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with many links pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs, such as http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16073b0b3ae588---81215240251.pdf, are likely used to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://csom.cz/wp-content/plugins/super-forms/uploads/php/files/3ab4bdd66dbb7444d365ecca5c91a7ae/kasukerikele.pdf
- http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/16097ccc791909---lusifuxunosi.pdf
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608750d8d0098---vugesuwo.pdf
- https://www.vedaaz.com/wp-content/plugins/super-forms/uploads/php/files/c1e95d0f83993c5a0a52551e00db9cc3/barulo.pdf
- https://xn----7sbbjg7ctfs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/59d2d348ce00b3818a4c179e90a80073/zeleselabugad.pdf
- https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16078cff73f28a---xesemejijamana.pdf
- https://www.mysmilestudios.com/wp-content/plugins/super-forms/uploads/php/files/90e514cbc42ae0ddd6ddbcabcd98d8bc/23613746626.pdf
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2e5bb78e6b---98799395228.pdf
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16089327ad9b00---38494745607.pdf
- http://huile-de-nigelle.info/userfiles/file/zilofoze.pdf
- https://thediamangroup.com/_images/files/83829680040.pdf
- https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/4584e4a09fc70e21a688c7f43636f0e8/dosanexipejikunipavam.pdf
- https://beauty-full.ru/uploads/files/80297828969.pdf
- https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ea09668a9a---68176967276.pdf
- https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/f3fc0cff46fc81b9365613f9861a2be0/47578705989.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16073b0b3ae588---81215240251.pdf
- http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/160ba5b4038530---28404286928.pdf
- https://cashmeredreams.com/wp-content/plugins/super-forms/uploads/php/files/160a06a2b535c984478499fb3d578cfb/daxuvinuwovetumoru.pdf
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/41b0991f89f9c432cf46eb5090abed6b/rajopigekezusogojubi.pdf
- https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/60fded784ae5671a0efd833ea664a9f5/dagulasur.pdf
- http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9aa9b5193c---99024773848.pdf
- https://alexandrapanayotou.com/web/images/static/file/rebeguxikoresofotolag.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609a69082d73a---30519126202.pdf
- https://geneticapanama.com/userfiles/file/tanabusezuto.pdf
- https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/5e8d6e0f7055576f2bc7bf9483dbb364/73743579150.pdf
- http://france-ex.com/images/blog//file/938124124.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=pokemon+master+board+game+rules
- 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_off00010a72.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A72 | 16792 bytes |
font_01_sfnt_off00012284.bin760d6c3acfa302907c3ba7c3d987725e249ac3ee2f3465099c6eecd7c6c79206 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12284 | 17692 bytes |
font_02_sfnt_off000150b2.bin586c6fb360fc6fee220102cfbf8678518d21020a32992ef5f95d4fb517df54c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x150B2 | 10832 bytes |
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