MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It functions as a link farm, with numerous embedded URLs pointing to various domains, including those on compromised CMS uploads and disposable hosting. The presence of 'utm_term' parameters in some URLs suggests a potential phishing or SEO manipulation tactic to lure users.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://synerhu.ru/uplcv?utm_term=2017+subaru+impreza+manual+transmission
- http://modnyi-buket.ru/uploads/files/7422934615.pdf
- http://polskienarty.pl/data/aktualnosci_imgs/file/xeguligizare.pdf
- http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f7be000e771---zalurimigabezaxukik.pdf
- http://alphanaturehk.com/userfiles/file/89358040209.pdf
- https://shriayurvednagpur.org/public/ckfinder/userfiles/files/kilakifuxasafokajenu.pdf
- http://massimomoroni.it/userfiles/files/nedosivunopevorozabe.pdf
- http://chikatere.com/Upload/files/xelipogizidewawo.pdf
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/0snvj4hmmt1ac7meb2tppc3ugp/95491465783.pdf
- https://sapporomn.com/userfiles/files/52426124798.pdf
- http://panziofabian.hu/fck_kepek/vapatutivojegumaw.pdf
- http://forti.in/userfiles/file/81708226470.pdf
- http://15fratrowreunion.com/clients/2/2b/2b18ccadde375fd95e9ac2d5db5aaa67/File/zimejafonojago.pdf
- https://northcoteplaza.com/userfiles/file/54980649283.pdf
- https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/e9404b210b8f83fc7120cf1bad04227e/31239001705.pdf
- https://webtraffic.ch/wp-content/plugins/super-forms/uploads/php/files/tfof33q0rvepulruv8lob0mjp0/69389959236.pdf
- https://riolospettacoli.it/filesUploads/file/81474910426.pdf
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/1607b1a842aaa4---vukepelo.pdf
- http://fashioncenterpoint.com/wp-content/plugins/super-forms/uploads/php/files/c8e3b82e9a79c768d7d2c1568d5d5640/puloketeve.pdf
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609e8aa408881---93104143819.pdf
- http://rorolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/30074051960.pdf
- http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607a612de5d82---veworijotasulabokuk.pdf
- http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac3305ad428---sipamewosafiz.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_off0000b2b3.binc63c7a43fd61e9e51c1134b649d92dc90fb601a96561b04fffd8523a5348dbf4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2B3 | 15424 bytes |
font_01_sfnt_off0000d9e1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9E1 | 16792 bytes |
font_02_sfnt_off0000f1f8.bind11b0bf3aeaccd940579030d84663a1d314fbf561fe528fce525944370d3aeb1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1F8 | 10960 bytes |
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