MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous URLs pointing to compromised WordPress sites, suggesting a phishing or malware distribution scheme. The presence of multiple links on disposable hosting and the use of UTM parameters further support this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/47g7o1ngqths8mfcih2n1t6dm9/41940396983.pdf In PDF document text
- http://demkapi.com/resimler/files/15518569734.pdfIn PDF document text
- https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/26a9412a8413ed2c6f8ec7d92a15bb5a/51387924676.pdfIn PDF document text
- https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/16081e614e1e34---4831195819.pdfIn PDF document text
- http://szentimresiklos.hu/upload/file/tabedebexebotajozo.pdfIn PDF document text
- http://diversecityuk.com/userfiles/file/vesujosawuvu.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160756a7a7894a---48431942875.pdfIn PDF document text
- http://www.srijonihealinghome.com/fckimages/file/wagifozu.pdfIn PDF document text
- https://thietbivesinhsonhoa.com/webroot/img/files/32121454147.pdfIn PDF document text
- http://wjvanderheidedienstverlening.nl/uploads/file/80798583859.pdfIn PDF document text
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2b2f32b452---fudupetixafijajajadivug.pdfIn PDF document text
- http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/1607b92aa127fe---3134041332.pdfIn PDF document text
- https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/259eb10f2443216e06f7d717231ab8a3/luledu.pdfIn PDF document text
- http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/vsoafevp12mdb9ibm4t4gipkas/68583463953.pdfIn PDF document text
- https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d2c1c0e63d---62367449312.pdfIn PDF document text
- https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/hsshrnr23lv2jnlupni3gnkh9v/39808668162.pdfIn PDF document text
- https://kaptenhoki.com/contents//files/5678154984.pdfIn PDF document text
- http://tomaszskiba.com/userfiles/file/11783426319.pdfIn PDF document text
- http://agcslohian.com/userfiles/file/rovupikuviwoxusog.pdfIn PDF document text
- http://7166867.ru/ckfinder/userfiles/files/48519501405.pdfIn PDF document text
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1609af7e10414b---23453430224.pdfIn PDF document text
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/sbuq2o09pld8s3025s5pv0a1m7/solapodawugelat.pdfIn PDF document text
- https://singaporenotarypublic.com/wp-content/plugins/super-forms/uploads/php/files/1a4afc025e452d1cae1cbae5497e682a/fapipukamekiwivuje.pdfIn PDF document text
- https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/0f820503ee0c5e4e93cd7a32d71f406a/nowimadijevifutenani.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=squirrel+monkey+for+salePDF link annotation
- 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_off0000f1a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1A4 | 17144 bytes |
SHA-256: 26e3eb65fdf7205ab29e32a00e77e6b094e6caf11d120e61e4b7f622503c67f7 |
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font_01_sfnt_off00011e92.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E92 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000136a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x136A9 | 10804 bytes |
SHA-256: 2e1503885cb13e695e98af2a0a93b0e3d2c0abfe85ba2e67088c7daa5aec5aa0 |
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