MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, with multiple heuristics indicating it functions as a link farm pointing to compromised CMS uploads. The document body is unreadable, but the presence of numerous URLs, many hosted on compromised WordPress sites, strongly suggests a phishing or malware distribution attempt. The SE_INVOICE_LURE heuristic further supports the idea that the document is designed to trick users into clicking these malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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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://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160be784706902---veboruwogudunesit.pdf
- https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/d0199d0701827f9cd02deb912907ca58/namene.pdf
- https://vokalensemble-vocembalo.ch/userfiles/file/xizufavijojizawul.pdf
- http://www.520amis.com/upload/files/mufekojujama.pdf
- http://xn--2vxr09c6mc.tw/CKEdit/upload/files/3517781390.pdf
- https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/bba45d8fed63bf974a2c89c3d5b94509/93982195174.pdf
- http://www.centralperdana.com/file/xuxigivetikutuw.pdf
- http://sparkpro.lv/content/file/fotemamuj.pdf
- https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/376a53377690f940a2967e86ec7d53b8/48990948445.pdf
- http://www.ecvbrass.ch/user/web/file/35394189574.pdf
- https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/1608e080c8c0ae---87484235316.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088046f4112f---kulisemavesune.pdf
- https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/b34e97a223a41b13b285e52d817bbff0/josimiberafutevajuze.pdf
- https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a039121429---62454217356.pdf
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/160909969f257f---sumenawuresir.pdf
- https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160833060ded27---47732209473.pdf
- http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607587ba9e4d3---779672255.pdf
- http://thanhlapcongtykiengiang.com/upload/ck/files/makevaxosozinuxazuli.pdf
- https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c772a50eab1---74400890224.pdf
- https://brune-schmuckwerk.de/ckfinder/userfiles/files/xebod.pdf
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bcbff9b571a---dawejurudozomawakadavi.pdf
- https://pubs-icfas.org/icfas_new/dev/ckfinder/userfiles/files/xinovos.pdf
- http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cf95619e78---26693838938.pdf
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/2mm71ndjtoibn5fvkh2o0jjfkf/jimebafabe.pdf
- http://www.egavilanes.com/ckfinder/userfiles/files/susinimowu.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=baking+soda+and+water+douche
- 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_off0000ea0f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA0F | 16792 bytes |
font_01_sfnt_off00010226.binf678318e063c4e4b48d8af9dcd6760e658515aa9e1713b9aab2a308ddad0926d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10226 | 10936 bytes |
font_02_sfnt_off00011b63.bin4688235fe7d6b5befb203bf0b3bd811001bec54d83aaff15eb5cbe5c88c6767a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B63 | 17264 bytes |
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