MALICIOUS
132
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to known malicious infrastructure, specifically a URL designed to distribute malware disguised as a WhatsApp download. The ML classifier strongly indicated maliciousness, and the presence of numerous links on disposable hosting further supports a malicious intent to distribute a payload. The document body, though heavily obfuscated, contains references to the malicious URL and other PDF files, reinforcing the lure.
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 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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://gettraff.ru/pify?keyword=whatsapp+download+android+4.4+4 In PDF document text
- https://site-1039270.mozfiles.com/files/1039270/dopevetivusidomulan.pdfIn PDF document text
- https://site-1036981.mozfiles.com/files/1036981/vaxevukazoduzewegaja.pdfIn PDF document text
- https://site-1038851.mozfiles.com/files/1038851/77949038142.pdfIn PDF document text
- https://site-1038548.mozfiles.com/files/1038548/83035534140.pdfIn PDF document text
- https://site-1042282.mozfiles.com/files/1042282/juxipisatozekatu.pdfIn PDF document text
- https://site-1040879.mozfiles.com/files/1040879/purox.pdfIn PDF document text
- https://site-1042453.mozfiles.com/files/1042453/lasoxudexipekufev.pdfIn PDF document text
- https://site-1048457.mozfiles.com/files/1048457/mukororib.pdfIn PDF document text
- https://site-1037860.mozfiles.com/files/1037860/samuvirifowitup.pdfIn PDF document text
- https://site-1040038.mozfiles.com/files/1040038/zipababino.pdfIn PDF document text
- https://site-1036721.mozfiles.com/files/1036721/gimit.pdfIn PDF document text
- https://site-1039840.mozfiles.com/files/1039840/nesibu.pdfIn PDF document text
- https://site-1043770.mozfiles.com/files/1043770/wipisiguxedoso.pdfIn PDF document text
- https://site-1042920.mozfiles.com/files/1042920/bolokotuv.pdfIn PDF document text
- https://ridolagu.weebly.com/uploads/1/3/0/7/130775195/e09811dcb321b.pdfIn PDF document text
- https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/8767144.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368964/normal_5f8826126a92c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368742/normal_5f87c109dd976.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371014/normal_5f88d480c7568.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366400/normal_5f877a7ecaa23.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368488/normal_5f877365ea761.pdfIn PDF document text
- https://site-1048222.mozfiles.com/files/1048222/22545261879.pdfIn PDF document text
- https://site-1042886.mozfiles.com/files/1042886/cidade_de_deus_santo_agostinho_livro.pdfIn PDF document text
- https://site-1044240.mozfiles.com/files/1044240/forubi.pdfIn PDF document text
- https://site-1043620.mozfiles.com/files/1043620/jevorofajusu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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_off00006cc3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6CC3 | 5272 bytes |
SHA-256: de47d5a01d14f1277b546d07d5e14f958581f0ff04d369312d3d7bd0d6ce13b9 |
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font_01_sfnt_off00007ec0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7EC0 | 10200 bytes |
SHA-256: 68a7c8de09c60c54c68fa8a02dd2d853d995e7202ec5bb5a00fa1cc4ceb61ade |
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