MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics indicate the PDF functions as a link farm, directing users to multiple external URLs, some hosted on potentially compromised or disposable domains. The presence of numerous links, including those with 'utm_term' parameters, suggests an attempt to drive traffic for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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=desert+storm+game+android PDF link annotation
- http://8njl.com/userfiles/files/wukoj.pdfIn PDF document text
- http://ettorebelfioreliutaio.it/userfiles/files/bixazetuganolobunatu.pdfIn PDF document text
- https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/l0iopuvjhbdu1te6b52pnh2bhh/sodesu.pdfIn PDF document text
- http://lscapital.it/images/file/22119397767.pdfIn PDF document text
- https://propertiproperty.com/Uploads/userfiles/files/nakivupom.pdfIn PDF document text
- https://glaze-metalart.com/upload/files/romewogefaditumejakat.pdfIn PDF document text
- http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/ccc9848ee82130a68393a11d52f9f6cc/91286850698.pdfIn PDF document text
- http://xn--2o2b17g32e8xisqq.com/userData/board/file/47563727436.pdfIn PDF document text
- https://www.privathospitaletkollund.com/ckfinder/userfiles/files/377722810.pdfIn PDF document text
- http://nemdanangpho.com/uploads/2021-09-19/images/files/29115406587.pdfIn PDF document text
- http://fteq.ru/files/file/lifevazinalinivotades.pdfIn PDF document text
- http://darslaska.org/ckfinder/userfiles/files/nubudamakikokunekarivek.pdfIn PDF document text
- http://malir-naterac.info/UserFiles/File/10752605583.pdfIn PDF document text
- http://okgwa.net/50/files1/file/gewexawubivux.pdfIn PDF document text
- https://ccaquebec.com/userupload/files/58857966835.pdfIn PDF document text
- http://msdoubrava.cz/foto/images/file/19047267371.pdfIn PDF document text
- http://vesimport.ru/userfiles/file/74979771413.pdfIn PDF document text
- https://qian-ho.com/upfiles/editor/files/zitobiromibesu.pdfIn PDF document text
- http://czminghe.com/upload/files/71041986510.pdfIn PDF document text
- https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/ujne4q5q917nc543qs3el55af8/10911012137.pdfIn PDF document text
- http://stl-hk.net/userfiles/pulatu.pdfIn PDF document text
- https://myphambambi.com/webroot/img/files/33583891624.pdfIn PDF document text
- http://balbu.eu/uploads/news/file/tamogogetixokabegozo.pdfIn PDF document text
- https://camphacement.vn/upload/files/sixularorewikosukigutozu.pdfIn PDF document text
- 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_off0000e04d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE04D | 16992 bytes |
SHA-256: 010fb3ef4eff8cdaf4b4397b35f5613f72fa569ab6518796e3e4975751eb82eb |
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font_01_sfnt_off00010c72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C72 | 10548 bytes |
SHA-256: a3283a92aa9b818361215546a007cb6f08c40613341b4ad3445f18499ff5dda9 |
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font_02_sfnt_off0001244a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1244A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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