MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
T1059.007 JavaScript
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm used for phishing or malware distribution. The document body, though heavily obfuscated, contains references to 'wkhtmltopdf' and a date, hinting at its generation. The presence of embedded URLs and the overall structure strongly suggest it's designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://thedewakohchang.com/image/upload/File/olajedilaw.pdf
- http://jarosi.hu/files/file/zifimereweboponulurofaz.pdf
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160afe4c1a560f---bamobitugaj.pdf
- https://jgmurphy.com/wp-content/plugins/super-forms/uploads/php/files/967651e50df0936866929fa6d09710e9/20137564711.pdf
- https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/160974ff83c26f---kovajegiba.pdf
- https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/sah69ocghfmvb8e5gsjj0h70qh/74371654929.pdf
- https://martybermanassociates.com/wp-content/plugins/super-forms/uploads/php/files/129bd01461fe925faed3d87945a552fa/6194682059.pdf
- http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160890df4581b8---piruzuxokasuvof.pdf
- http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608ae2bcbf4ab---dinabax.pdf
- https://diedacorporation.net/freesiafiles/file/rajodixazaxira.pdf
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16094dcaacadad---sajojalovaxikuzamepu.pdf
- https://abugfreemind.com/userfiles/file/72706551901.pdf
- http://sosnovgeo.ru/userfiles/file/ganijufasiweximudizu.pdf
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/a0487d08bb5fc1b9bd399d2102d28e0e/93861845919.pdf
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/16096b543179f5---23760486461.pdf
- http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a84d9acb36---66079291368.pdf
- http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160871d27c5766---tabipemotenisene.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=loter%25C3%25ADa+de+vocales+para+imprimir+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://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d6b0.bined515c10637e150a089290915f9ae22dba305a67e4d3dedc9ad57ebc9674e31f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6B0 | 5356 bytes |
font_01_sfnt_off0000e8e3.bin1d275afaf2c7b428310fedc1995ddebc956ba73c3329a38e08c8856d28c183fe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8E3 | 12324 bytes |
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