MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm, with many URLs pointing to compromised CMS upload storage and disposable hosting. The embedded URLs suggest an attempt to direct users to external, potentially malicious, websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9807
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 http://houstontca.org/Content/uploads/files/36140929711.pdf
- http://ch-bovi.com/upload/files/25456803179.pdf
- http://neoclassicalmansions.com/uplds/file/jafazazu.pdf
- http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614245a91ee44---88047074058.pdf
- http://rsport.eu/yonexshop/static/file/lawitolu.pdf
- https://grouptm2.com/contents/files/mimapapopew.pdf
- http://muasamhangmy.com/ckfinder/userfiles/files/dujaxotebotobobupir.pdf
- http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/16142721f33c3e---88214211753.pdf
- http://ageofwonders.buka.ru/sadm_files/pijesivasuni.pdf
- https://interstudy.net/userfiles/file/27010391402.pdf
- https://hongmao.tw/uploads/files/202109020359463054.pdf
- https://www.bbmnetlicitacoes.com.br/cms/ckfinder/upload/files/77036466666.pdf
- http://tplustech.com/images/ckeditor/files/28730102639.pdf
- https://nezamirekhaseafoods.com/userfiles/file/34627984421.pdf
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1613b16051c7a1---julomilimevokaramepiduji.pdf
- http://giaydantuongphongkhach.net/images/news/file/61898162573.pdf
- https://orig-shop-gsm.ro/ckfinder/userfiles/files/23687260809.pdf
- https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/22312901c1360eb64960af5ee90ea177/zebawavujufufozi.pdf
- http://vngo-cc.vn/cooker/public/files/fidaromagipukip.pdf
- http://thuduchouse.vn/pics/file/zawezolukenegifuxoratakug.pdf
- http://likebarcode.com/image/files/20210911_013844.pdf
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/16137a7919186f---17256409629.pdf
- http://thesciencenetwork.org/uploads/files/sawaxalegosabaxapekugut.pdf
- https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/161350a7887a18---fuwumegebarobujekid.pdf
- http://ruresept.ru/files/file/sawivux.pdf
- http://deltools.com/userfiles/file/48395792987.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=gear+s2+rebooting
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cea4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCEA4 | 16792 bytes |
font_01_sfnt_off0000e6bb.bin7689c92da4aa14735c16c001c966abb857814cc5735f1716e45d3af535f87585 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6BB | 10536 bytes |
font_02_sfnt_off0000fef2.binac2e59740f29c6c2e0a7db10b37ac60e5f928fde195c33e50a660455860cd406 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEF2 | 22024 bytes |
font_03_sfnt_off0001378a.bine06ebeaa2bb94d9bf14337b0794fec2c9c4a66e30291689b6f6234bfe360c8a5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1378A | 16232 bytes |
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