MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous URLs pointing to external sites, many of which are hosted on compromised WordPress installations or disposable domains. The presence of 'utm_term' parameters suggests an attempt to track user engagement, common in phishing or spam campaigns. While no scripts were explicitly extracted, the nature of the links and the 'PDF_URI' heuristic suggest it's designed to lead users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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 https://philabc.ru/uplcv?utm_term=brainwriting+is+the+process+of+brainstorming+by+using
- http://culbertsonlawyer.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/42921733765.pdf
- https://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/47d7d5a3479e27745372894f40c8c7ca/jafon.pdf
- https://aslplastic.com/ckfinder/userfiles/files/tefovumaparoretematud.pdf
- https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/jsa8ffqucfvlv661fvj76qid16/36402915561.pdf
- http://files.ibiza-ferien.de/file/kemamajadusujuk.pdf
- https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/5f05255fa04734b7fbb5dac57736b82a/97677303641.pdf
- https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/1n3ggd2h03ra2bavc1b3s7ftrf/vabonapalaziludogef.pdf
- http://thaoduocvn.com/userfiles/image/file/gafalomuwod.pdf
- http://elijahlaurabishopblack.com/clients/b/be/bed082b287f5bb70db4763ab929fc18a/File/zomipiwawivobabekojabozu.pdf
- http://cnkls.com/userfiles/file/1623666302.pdf
- http://lamekatus.ee/uploads/ckeditor/files/87716261453.pdf
- http://owtsreunion.com/clients/e/e7/e717deb27d844c69ffc49b2d3c0bb1a5/File/rapatok.pdf
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef3df1118c---weboba.pdf
- https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/a427692b163a5694f25a2c59ebad6156/zelujivizibu.pdf
- http://karunb.com/UpLoads/files/vonab.pdf
- https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d3202f144d8---zexeripotixaroroj.pdf
- http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160aa70ed40003---fusadudowulumi.pdf
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d92329a7242---nafonemunofidobatas.pdf
- http://www.ecostroyservis.ru/File/rupupefabuweruliv.pdf
- http://arohitourandtravels.com/userfiles/file/tumov.pdf
- http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072428d72733---zizovidupitidesamufa.pdf
- https://aksukartela.com/images_upload/files/58552789210.pdf
- https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/16083dfc30763d---kirizunowuduzedamerupoz.pdf
- 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_off0000f2f3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2F3 | 16792 bytes |
font_01_sfnt_off00010b0a.bin1ed03c03a4e8102b2c13b47cd16d31f247836344385235a79804449dab89dc5f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B0A | 11372 bytes |
font_02_sfnt_off0001258f.bin50d3bc6f9dbb8a6a4abb9e11241e5a29d3fb53a694941c21123d5a12e4bce7a0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1258F | 16976 bytes |
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