MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous URLs pointing to compromised WordPress sites and other disposable hosting, suggesting an attempt to redirect users to phishing or malware-hosting pages. The presence of multiple compromised CMS upload links further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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://zonwering-nederland.nl/ckfinder/userfiles/files/32676326109.pdf
- http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160751833cad70---40789348129.pdf
- https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160865b4721c0c---10816666.pdf
- http://posekatzahradu.cz/files/file/vivuxa.pdf
- https://www.corridar.com/wp-content/plugins/super-forms/uploads/php/files/4ecnedk61fovpi591f34ia9un8/14240327034.pdf
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/9b8b4c02b784cc42237920f56213c046/sopatudoxoxebo.pdf
- https://atlanthealth.com/wp-content/plugins/super-forms/uploads/php/files/a3873a3290a3506c95546b6696d48107/nigaxusokuvozenep.pdf
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0fc363da5---83313334501.pdf
- http://bright-mineral.com/uploadfile/file/2021062123525997.pdf
- http://younewstoday.com/task/userimages/file/26800145224.pdf
- https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/851edd07865fa393f4b7da7f60d2a634/67939600975.pdf
- http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/160868e977f6e7---37558948655.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b6f72f25272---5328632924.pdf
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160803ce8ec663---malofejovilupekiwokogo.pdf
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/160af343543373---sinuwolalidivumabizovi.pdf
- https://radmangroup-ye.com/rgfiles/file/89680795037.pdf
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a0d1ca64ac4---98411291860.pdf
- https://www.nordatec.com/wp-content/plugins/super-forms/uploads/php/files/iqjkotlj8utis6bq5hqp1vmpip/vevepalosasi.pdf
- https://essaidafm.com/uploads/FCK_files/file/70232091998.pdf
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c2f4f13fbba---4417692813.pdf
- https://wavesmaroochydore.com/wp-content/plugins/super-forms/uploads/php/files/penljc4f3e3rpfijg27mc6243g/6534691394.pdf
- http://altaprecision.com/userfiles/file/48918936039.pdf
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/c2haqqbsu01ior87n4ut6oompm/63388530683.pdf
- https://hophamthaibinh.com/upload/files/86225905039.pdf
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160d498f1431e2---83718512709.pdf
- https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/2a8a970264fa53da13914b936b580dcd/vazoruzapodajizimunoboje.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=icd+10+code+for+orthopedic+hardware
- 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_off0000f738.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF738 | 16792 bytes |
font_01_sfnt_off00010f4a.bin48e76cad011b0c6f7c217fdeb8d7c0a7f16408788933f917cc84e962cdf5f1c7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F4A | 18056 bytes |
font_02_sfnt_off00013e64.bin190d747f921d599b305d055b01f0cec450210aca1a53d802f68200f506146b75 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E64 | 10608 bytes |
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