MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan threat. It contains numerous links, many hosted on compromised WordPress sites, suggesting it functions as a link farm to distribute further malicious content. No scripts were extracted, but the PDF structure and embedded URLs point towards a phishing or malware distribution campaign.
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://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1608b6c959dea5---586516313.pdf
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/cde052340a2c6632ba346971b0c4f30e/71295766173.pdf
- https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/8i898bdp81dsnspc7pfdkk1t4e/54694546493.pdf
- https://brod-plovdiv.com/images/67465753500.pdf
- http://hdurmuslar.com/images_upload/files/gixugapufi.pdf
- https://lea-inc.com/wp-content/plugins/super-forms/uploads/php/files/5f0c9adf5c14d807525d6714e4be89e9/49673950867.pdf
- http://kopdesign.nl/userfiles/file/70544391628.pdf
- http://adveotec.com/img/file/nafawaza.pdf
- https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/eb5bfe577a711fd70772c147866aabd0/65655093032.pdf
- https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/1608f107fe4b0b---91956079493.pdf
- https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/59d9254ed38d4798abc80f0df8f60597/wegirigawepavugav.pdf
- https://www.groupe-coelho.fr/ckfinder/userfiles/files/53458080466.pdf
- http://ergo-logo-bamberg.de/userfiles/file/mifexuvafisof.pdf
- http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d5f6368e1b2---dadavanuzokojinagitur.pdf
- https://www.alignerco.ca/wp-content/plugins/super-forms/uploads/php/files/961d7d7c49b4388fda8e3fe37d27ca27/59183605691.pdf
- https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8f3a5ee5b1---kowanejeruwaguxunonegu.pdf
- https://lesfeesdelhetre.fr/upload/files/51749212682.pdf
- http://peusch.lu/userfiles/files/derumipumiwomunolemisa.pdf
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/1ient4ntt62hnt1pq3nrr3v4dq/tububokug.pdf
- https://arizonalightingsales.com/wp-content/plugins/super-forms/uploads/php/files/15a7fd6162786be447f4461de0370940/sikalotafox.pdf
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095def7dface---11085732129.pdf
- http://gorisum.net/fckeditor/upload_file/file/5012284313.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=birthday+wishes+to+old+teacher
- 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_off0000e3c5.bin8ec9300c5ec3575517a35a6a1b994c9f7e09769dc729b42d8b8ce296b6138f4f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3C5 | 16424 bytes |
font_01_sfnt_off00010dcb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DCB | 16792 bytes |
font_02_sfnt_off000125e2.bin569a7a7f42e000010931b2ad0c46e54fb8f0b168f5b0e9e1021e89856327101e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125E2 | 10616 bytes |
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