MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, pointing to multiple compromised WordPress upload directories and disposable hosting sites, suggesting a phishing or malware distribution scheme. The presence of urgency and download lures further supports this, aiming to trick users into interacting with the malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/16140931937c83---10984259865.pdf
- https://traffictkt.com/viking1/uploads/files/6795097060.pdf
- http://frutapac.es/ckfinder/userfiles/files/78571314926.pdf
- http://damnoen.com/ckfinder/pho/files/76716960472.pdf
- http://pietroquatriniarchitetto.eu/userfiles/files/70735349423.pdf
- http://bjerkelunden.org/content/files/userfiles/file///guluwakesunudibaz.pdf
- http://pastoret.it/userfiles/files/poviritorakup.pdf
- http://www.omt.ntou.edu.tw/ckfinder/userfiles/files/xefopebisesalajenon.pdf
- https://rkdestate.com/userfiles/file/36716011985.pdf
- http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1614b76bd38490---44596030253.pdf
- https://unicon-msk.ru/data/files/xoponekadenalaxe.pdf
- https://comtraining.cl/userfiles/files/57254031576.pdf
- http://wksx.top/images/userfiles/file/37777720271.pdf
- http://obchodsezlatem.cz/upload/files/68197742424.pdf
- http://vrakskodamnetice.cz/file/fopixasojizatutegipif.pdf
- https://terminarz.online/kosmetyczka/krakow/files/939480783.pdf
- http://pizzeriadevita.it/userfiles/files/6677472763.pdf
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/25b3539d882a29dbba7e2eb9164dbbb2/nomutawiduwiva.pdf
- https://proektasis.gr/admin/spaw2/uploads/files/63814103299.pdf
- http://jayeonrak.com/upfile_editor/2021/files/13054802656.pdf
- http://lgassociates.in/uploads/99842192012.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=black+butterfly+emoji+copy+and+paste
- 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_off0000f6df.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6DF | 16792 bytes |
font_01_sfnt_off00010ef1.bin7c676f896af09d9ed6a1af18e4db2e6e0d37007155ba92cab523d58b9eb4495c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EF1 | 20124 bytes |
font_02_sfnt_off0001435e.bin1a3bae039f1cc3303815a6f46840a930ec43793872954e292962dada4f46bdec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1435E | 11412 bytes |
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