MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of numerous links pointing to compromised CMS upload storage and disposable hosting suggests a link farm designed to redirect users to malicious content. Although no scripts were explicitly extracted, the PDF structure and heuristic firings point towards a phishing or malware distribution lure, likely leveraging embedded links to achieve its objective.
Machine Learning
- Nyx PDF Classifier malicious score 0.9411
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://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606f749085993---77782461006.pdf
- http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/e2o4mm99tgje0hp5sqkstjs650/jegedeto.pdf
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/lv2m9rdu3dme5emql839g0gvus/sotusunav.pdf
- https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/8ivr3s1qisg304963prfomvhkc/87200278702.pdf
- https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16089e4ce57dfa---xojumererete.pdf
- https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/846aa149cc6e623ada653f81117ab445/22408135212.pdf
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096eb4a60f12---wofafopapadaso.pdf
- https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/160863a668e9b6---41502847964.pdf
- http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078922844e51---xegubasogetowujodemu.pdf
- http://www.julitolaschools.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c89e269995---40244231281.pdf
- http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16080e8c7e8e61---69957719079.pdf
- https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607f3cc50d1ef---wowoj.pdf
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16077a62d537ef---wurefibobixategavidapose.pdf
- http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16080be0f448b6---tefazixi.pdf
- https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/jopa1641jtd3dn32kga6t2ej6f/42022854550.pdf
- https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/1606f8018815b1---3787922471.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=bls+2018+pdf+espa%25C3%25B1ol+descargar
- http://scripts.sil.org/OFL
- 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_off0000f399.bine7bf743c699b37813eb6ffa5a1ddb118994f80c9d3b37e75c20c0581d0c74b8b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF399 | 6104 bytes |
font_01_sfnt_off00010838.bind30ae77e933c9d62f26522bad6e99cde4e7b8980c73ee7172cfa541d638144d4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10838 | 12472 bytes |
font_02_sfnt_off00013135.bin541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13135 | 16204 bytes |
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