MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple external URLs, some hosted on compromised WordPress sites. The PDF's structure and embedded links suggest it is used as a lure, likely for phishing or to download further malicious content, aligning with spearphishing attachment tactics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9849
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=android+anti+theft+feature
- https://giant-nano.com/app/webroot/userfiles/files/tarijadipabazubekasese.pdf
- http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/f139835179e2d84a56e708d693022185/65015772628.pdf
- https://zebcom.in/userfiles/file/92597297369.pdf
- https://10glazsikeyrosa.ru/file/jorubijami.pdf
- http://chernogolovka.inhome360.ru/admin/ckfinder/userfiles/files/xonajusexaxeliluk.pdf
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/1615220d542d92---nopokizenuwi.pdf
- https://lifeteacher.tw/uploads/files/202109121246244345.pdf
- https://weborder.cloud/userfiles/file///nadevokexaxogobeditoniwar.pdf
- https://mavachhaiphong.com/upload/files/pusonetukeme.pdf
- https://sunpower.lv/ckfinder/userfiles/files/boxikorubixowadolofajuja.pdf
- http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/19ee74b9fc1865bcf8f8cb4ebc3ce950/kutopafavesukuvenawupeg.pdf
- https://qatarsecurityservices.com/public_html/userfiles/file/zusawuwizurutodar.pdf
- http://bualuang101.com/backoffice/upload/files/diwiladevopukum.pdf
- http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16140858e6d1cc---sosin.pdf
- https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/161401163d029c---33020880912.pdf
- http://www.angels-rest.es/ckfinder/userfiles/files/92643787984.pdf
- http://evola.it/userfiles/files/goxevevejom.pdf
- http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/474ece07e81f1d5d71fc76f0502cac3a/46122518179.pdf
- http://tafgambiatours.com/userfiles/file/linexakam.pdf
- http://stilna-ya.com/_userfiles/file/32160949096.pdf
- http://www.beautyvogue.ch/Files/file/zujuvudenokogiwuzakawasa.pdf
- http://soft-pro.hr/upload/datoteke/33999909759.pdf
- http://www.rpv-drachten.nl/files/file/15769362780.pdf
- https://rougezenekar.hu/files/file/jofotabedetofugaza.pdf
- http://westhollywood.ilovepokebar.com/uploads/files/zubewepivujixew.pdf
- https://izyskately.ru/foto/ck/files/17234455413.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_off0000b803.binc7e9c9f0088d2d4f56763ea06b4107d902c7d54cc67e600d8b32d00792d04185 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB803 | 10320 bytes |
font_01_sfnt_off0000cf2c.bin859957ea2498f6ecdb403b773a719a6a1892f171dce48e304d25690498717c08 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF2C | 17132 bytes |
font_02_sfnt_off0000fb07.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB07 | 16792 bytes |
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