MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains numerous embedded URLs, many of which point to compromised WordPress upload directories or are part of a link farm hosted on disposable domains. These URLs are likely used to redirect users to phishing sites or download further malicious content.
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://ketchas.ru/uplcv?utm_term=free+among+us+online
- http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/ed6bb5209f98aea207de3913c22c4b11/38462208349.pdf
- http://e-baze.lv/images/site/file/59294359546.pdf
- https://suprizpin.com/calisma2/files/uploads/tazix.pdf
- http://jmestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/45743525774.pdf
- https://autoprofi.ua/userfiles/file/37195839573.pdf
- http://lempreintedubois.fr/userfiles/lempreintedubois.fr/file/jusagizadukoretem.pdf
- http://hoaiduc.edu.vn/ckfinder/userfiles/files/27876940812.pdf
- https://tw-itemaos.com/ckfinder/userfiles/files/29440347157.pdf
- http://debandhelder.nl/ckfinder/userfiles/files/74908550971.pdf
- http://barefoot.pl/userfiles/file/91790422021.pdf
- http://haiqi-machine.com/d/files/19604976156.pdf
- http://miet-boot.ch/images/uploadedimages/file/duwosemekevaboxij.pdf
- http://kmjmt.com/news/upload/file/210908055617879323lzxhjf.pdf
- https://prestinireedcorp.com/userfiles/files/14094022483.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613258e125906---modafevojudekuwewuti.pdf
- https://debo-fit.be/userfiles/file///52866887635.pdf
- https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/e663c276e8dafbf68c54811f0bc3aeb2/61868989313.pdf
- http://hockeydh.com/files/ups/files/72055126202.pdf
- http://marchmont.ru/imgs/file/52012896356.pdf
- http://sun-green.nl/ckfinder/userfiles/files/reseg.pdf
- https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/524c1lvtovq50rg7i288uhrf1j/46134858286.pdf
- http://3e-machinery.ru/app/webroot/filesfiles/pugamusafatidaza.pdf
- https://globalcircle.club/userfiles/file/rezilubijefod.pdf
- http://sbnjl.com/userfiles/files/31084864314.pdf
- http://xn--knstlerische-biografie-arbeit-lbd.ch/userfiles/files/87995585300.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_off0000d877.bincb6a08859245822176acdbe756fba9761bf39b945e06feb37feb10b3ab8fa06a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD877 | 10432 bytes |
font_01_sfnt_off0000f006.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF006 | 16792 bytes |
font_02_sfnt_off00010818.binc2bf7b4eb6c7b6ee419b5dcac7d14d1900d6e5acbe0b5ed925c3b2beb37e3aa7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10818 | 17064 bytes |
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