MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a link farm. It contains numerous URLs pointing to various websites, some of which are hosted on compromised CMS platforms, suggesting a phishing or malware distribution scheme. The document body is heavily obfuscated and unreadable, providing no direct clues to its intent beyond the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://davidlbrooks.com/clients/868292/File/rofasosezoj.pdf
- http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fd9e662d5c---65523979655.pdf
- https://e-lightingcontrols.com/wp-content/plugins/super-forms/uploads/php/files/b5d01f08ac576bd75af2371f40b84865/tadaw.pdf
- https://honkakuji.jp/honkakuji/images/ckfinder/files/2016451538.pdf
- https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/4659e46d2516bfabdada1697e575f498/muwimupat.pdf
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084e37308834---vabix.pdf
- https://altonika.pro/files/fck/file/setukebixegumefoteb.pdf
- https://carea2plus.com/wp-content/plugins/super-forms/uploads/php/files/af04a68a4883310d642926e124cdc1bc/xazaxuvanud.pdf
- http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/16082bb6321efd---89202092043.pdf
- http://akgikorea.com/file_upload/fck_upfile/file/ropikug.pdf
- http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/1212009db506f90bade538ca5b16da44/vuwisezosupilolidunov.pdf
- https://alves.bg/ckfinder/userfiles/files/76673221542.pdf
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160903503c60c2---dupenotuxixalifuku.pdf
- https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/16081941003586---wafilomot.pdf
- http://poorclarescork.ie/images/57268772355.pdf
- http://erex.hu/upload/file/kabakediwowotetaxivike.pdf
- http://yejida.com/userfiles/file/16207124960.pdf
- https://its-bulgaria.bg/files/file/kufoko.pdf
- http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160d62240902e9---84370179542.pdf
- https://songuryazilim.com/calisma2/files/uploads/fagudivagoxotuf.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=coc+best+base+th7
- 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_off0000e672.bin6b10c826ef247d90f977e4b8053df5657b29786330058aee30fa189ba8894f12 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE672 | 16876 bytes |
font_01_sfnt_off0001123e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1123E | 16792 bytes |
font_02_sfnt_off00012a55.bin0db8c610b2d3045d6c81b3f511d13847b3c6e63fabf5cb5e688083955328fcfb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A55 | 10208 bytes |
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