MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple distinct, often disposable, domains, with one URL pointing to a compromised WordPress upload. The document body is heavily obfuscated and unreadable, providing no direct clues to its intent beyond what the heuristics suggest.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://himalayanespresso.com/espresso_ckfinder/userfiles/files/84121545362.pdf In PDF document text
- https://morethancars.eu/uploads/edytor/file/xuruwalusaw.pdfIn PDF document text
- http://mega.kz/media/upload/files/87149991020.pdfIn PDF document text
- http://neurooperations.com/ckfinder/userfiles/files/rawedike.pdfIn PDF document text
- http://chingyi.tw/userfiles/files/23300287998.pdfIn PDF document text
- http://creationart.hu/files/file/finasutukunimofufikoxu.pdfIn PDF document text
- http://1utilaje.ro/mm/file/delukilubujiku.pdfIn PDF document text
- http://polipack.ru/content/file/vosuxigibar.pdfIn PDF document text
- http://ieltsadd.ir/cache/fck_files/file/54196299496.pdfIn PDF document text
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/161507c1f02c04---famop.pdfIn PDF document text
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/u5vg4qqm2729s2ga013g6vsmks/xogejazifimusovuna.pdfIn PDF document text
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/161347671ee294---koxesoxopatedaf.pdfIn PDF document text
- http://capitaloffice.pl/fotki/file/10964512996.pdfIn PDF document text
- http://wawabed.pl/uploads/userfiles/file/difowoxupoti.pdfIn PDF document text
- http://zit-tech.com/userfiles/files/gulisakapobolowufadira.pdfIn PDF document text
- https://tectrongim.com/uploads/files/dituvaminuloko.pdfIn PDF document text
- http://kprmk.pl/userfiles/file/53862920931.pdfIn PDF document text
- http://www.ecostroyservis.ru/File/wejabadozupepasogekaloze.pdfIn PDF document text
- https://uhcp.com/editor_upload/file/pinajidapiruv.pdfIn PDF document text
- https://doluhosting.com/calisma2/files/uploads/nagozoribejawuketos.pdfIn PDF document text
- http://rtm-plus.ru/ckfinder/userfiles/files/dumapa.pdfIn PDF document text
- http://chrisnoblelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/18630808275.pdfIn PDF document text
- http://lisaarkin.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/towazug.pdfIn PDF document text
- https://loyd.rs/images/file/kefufepowem.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=the+robin+redbreastPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b2fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2FA | 16540 bytes |
SHA-256: a7cf9db7aba3f4406916cc456f2c0b44917aeee79cd6b4d0e78198a96eb105fe |
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font_01_sfnt_off0000dd51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD51 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f568.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF568 | 10404 bytes |
SHA-256: 6f25af33b7ff90ce6e9b21ab30ea42b4a7c3845d6ebeb8c98ea4bab70b103c0f |
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