MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to domains designed to host downloadable files. One critical heuristic identified a link to a known malicious redirector, and another flagged the document as a link farm. The ML classifier strongly indicated maliciousness. The embedded links likely serve to distribute further malware or lead users to phishing sites.
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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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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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.com/wb?keyword=joint%20variation%20worksheet%20pdf In PDF document text
- http://files.royalecare-afc.com/uploads/1/3/0/8/130873849/paraduj_fizodifo.pdfIn PDF document text
- http://files.lkoc.org/uploads/1/3/1/3/131383497/bofepowoj.pdfIn PDF document text
- http://files.nelsonnieves.com/uploads/1/3/1/3/131398367/mujasofugeromax.pdfIn PDF document text
- http://files.publichealthmuseum.org/uploads/1/3/1/3/131384789/a826b1b39.pdfIn PDF document text
- http://files.35ewc.com/uploads/1/3/2/6/132682290/zisomuzusam_jukuxel_kefufamasuxax_zowumokelow.pdfIn PDF document text
- http://files.hikaricreative.net/uploads/1/3/0/7/130739764/8723732.pdfIn PDF document text
- http://files.cupelocal748.com/uploads/1/3/1/3/131398250/sujutitel_xuwelamirur_fedogabafisuk.pdfIn PDF document text
- http://files.chrischiropracticservices.com/uploads/1/3/1/4/131437753/2163686.pdfIn PDF document text
- http://files.jilliancanavan.com/uploads/1/3/0/7/130776003/6623952.pdfIn PDF document text
- http://files.mnnicebaseball.com/uploads/1/3/0/8/130874458/xamezut.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://fusikazisome.files.wordpress.com/2020/06/zemikopuwoginitonug.pdfIn PDF document text
- https://sivitaxip.files.wordpress.com/2020/06/xegotosugusuvakaleza.pdfIn PDF document text
- https://polagigeso.files.wordpress.com/2020/06/fimizujofiwap.pdfIn PDF document text
- https://suxeniruwip.files.wordpress.com/2020/06/96372865543.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jisabisagubimebusogapasof.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/doxufuvezemog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kiwovanigefuminif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78683638278.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65545430121.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b603.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB603 | 5092 bytes |
SHA-256: 03196ecf4edc7b87e0a33c41e88865dd9bae651288151e4bdaee6e147c65ef3b |
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font_01_sfnt_off0000c754.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC754 | 2052 bytes |
SHA-256: ea10ac11888e4c3a17eadae41f90357bc42b38d0373901c6a6c174c4234cab70 |
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font_02_sfnt_off0000d008.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD008 | 15500 bytes |
SHA-256: 4573804fd0f19cebca6e7bbd9d0e91940975fec74e74c721561602f67f0a8416 |
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