MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, with numerous URLs pointing to compromised WordPress sites, likely serving as a lure for phishing or malware distribution. The document body is heavily obfuscated and unreadable, suggesting it's not intended for user interaction but rather to host these malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b92aca7d591---61770769876.pdf
- https://mecaniquekd.ca/upload/file/powarevo.pdf
- https://cottingham-group.com/cufiles/files/zutijagebawisutedivego.pdf
- http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160c2bfc59a351---rojubimizujuzelisilug.pdf
- http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092aade71981---keruzuf.pdf
- https://ewastexperts.com/userfiles/files/refonexipixifavov.pdf
- https://afd.me.uk/wp-content/plugins/super-forms/uploads/php/files/c9bfcc0ruhu7tqffg8ekmle48j/82526712389.pdf
- http://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/448tc4qukhm6h2mbd0mughl0o1/tuwobanojebur.pdf
- http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b5f08ccd71d---86214613437.pdf
- https://area34.info/wp-content/plugins/super-forms/uploads/php/files/hjcpu93bnqlsfo9o05s0hvok72/84466963927.pdf
- http://ksnjl.com/userfiles/files/96915736753.pdf
- http://cobansut.com/userfiles/file/golejokeduwisoxulizuze.pdf
- https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/3c65a9c30602e3819d0803ce61da4db7/46687255422.pdf
- https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160c9b2dc5a54a---gadixiba.pdf
- https://www.straightmyteeth.eu/wp-content/plugins/super-forms/uploads/php/files/551d1e3591de10c25e80268411f5becf/lukulaj.pdf
- http://amctop.com/board_data/editor_img/file/202106091752.pdf
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/3086e88a4312214aa6f92494462f410f/raguvidufujizuzibamuwemax.pdf
- http://email-database.info/userfiles/file/wiwubadodutibifilikelib.pdf
- http://www.anjhimayath.com/upload/file/bomufezugidupufifike.pdf
- http://ghhs1968.com/clients/5/57/5762190d0a265df614d1f295a7060a42/File/32450820535.pdf
- https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/5cd5285ebd8f7464dbffa3925341ce32/25015191174.pdf
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/f7aa27c89c0dcde54404ea5a0b10db90/nesamek.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=special+relativity+helliwell+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_off0000e8d3.bine29a223f9cca24a4cd1533a9197f16f802f569cebed2df40f4244b1fc53658dc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8D3 | 18140 bytes |
font_01_sfnt_off000118e2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118E2 | 16792 bytes |
font_02_sfnt_off000130f9.binfbe24fc04b85f585133bb94598217e84aeed59dcbb04d876ebb3f9d9db4afac7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x130F9 | 10664 bytes |
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