MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains numerous links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for academic writing resources, combined with the wkhtmltopdf application name. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the presence of a link to malicious infrastructure, and PDF_SEO_LINK_FARM indicates a large number of external links, likely for SEO manipulation or to obscure the malicious destination. The primary malicious IOC is the redirector URL.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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://ttraff.cc/pify?keyword=akademikong+pagsulat+pdf In PDF document text
- http://files.azpadu.com/uploads/1/3/0/8/130874647/7762556.pdfIn PDF document text
- http://files.girlshackla.org/uploads/1/3/1/4/131437513/6237886.pdfIn PDF document text
- http://wofixof.ukhomesteading.co.uk/uploads/1/3/0/8/130814297/soraripatemo.pdfIn PDF document text
- http://melosatal.angiebellarosa.com/uploads/1/3/0/7/130776791/1785361.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0445/9918/1476/files/neural_network_example_python.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1960/6936/files/xizidatubonejokirogexil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3801/4616/files/amplificateur_oprationnel_exercices.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8164/5736/files/73136800829.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4343/8242/files/zefevesorozog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0521/3854/files/55623966943.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5981/4306/files/download_surat_yasin_latin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7482/2044/files/benim_hocam_fizik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3108/4701/files/lanadobudujufuxoseriw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4816/3738/files/62930445986.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6217/3604/files/45073242565.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1364/3167/files/83719550587.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6942/1206/files/dozer_machine.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2508/8168/files/toastmasters_competent_communication_manual.pdfIn PDF document text
- 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_off00004af4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4AF4 | 5316 bytes |
SHA-256: 10e5dd1b787eda3ce95fb7a82553c3bb658914259053f6d1a3724afb90565878 |
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font_01_sfnt_off00005d06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D06 | 8568 bytes |
SHA-256: 11ddb96438f400d29375d527b629d6f8e8165962e76417584cb4ee60b73b83f1 |
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