MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The ML classifier strongly indicated maliciousness, and several heuristics point to the PDF being a link farm hosted on compromised WordPress sites. The document body, though heavily obfuscated, contains text related to 'wkhtmltopdf' and 'Qt', suggesting it was generated by a tool rather than being a legitimate document. The presence of numerous URLs, many pointing to compromised CMS uploads, indicates an attempt to redirect the user to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://goodwill.pl/userfiles/file/10668311962.pdf In PDF document text
- https://www.marvistasales.com/wp-content/plugins/super-forms/uploads/php/files/30614a79c25f347ba64c13483f88a433/fixobiminegowowewukak.pdfIn PDF document text
- http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/06253300448d58db77e04c8fde226e17/tudukezarusegarib.pdfIn PDF document text
- https://fwullong.com/upfiles/editor/files/gizared.pdfIn PDF document text
- http://chatsworth72.com/clients/5/53/532ec3c8dc0e95779814939736d4df6d/File/junonise.pdfIn PDF document text
- https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/jo74lifkqdholq2ojamnh5qnht/fabagororulodenigumakof.pdfIn PDF document text
- http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1609f16cff343a---tukijugijaneliruriw.pdfIn PDF document text
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16084b07e32456---zosula.pdfIn PDF document text
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/7aqap67dbfgu5e5vqj0erkkk35/kazenigifunipovivamon.pdfIn PDF document text
- http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ae33566caf---58480444403.pdfIn PDF document text
- http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/bccaadf3d67b3a035346303bf8df0ae7/71921738400.pdfIn PDF document text
- https://penal-garazh.ru/files/1890771303.pdfIn PDF document text
- http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c27e9745148---dopumezonol.pdfIn PDF document text
- https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/e8a496ddc25722d3f4b1f42dd2fb5324/59970345997.pdfIn PDF document text
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1609a27d2a82b0---zezijidapugutewifejad.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=trauma+abdominal+pdfPDF 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e1ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1EC | 5100 bytes |
SHA-256: cc6d6692c923e42891995390be332727e188a2eab58264b305c0279589fd7419 |
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font_01_sfnt_off0000f325.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF325 | 9812 bytes |
SHA-256: 9b16a92eace6e64fe7cc50575f37664e5ea97aee7dcd068807f911b857cd562f |
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