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 seemingly generated PDF files on various domains. One critical heuristic identified a link to known malicious redirector infrastructure at 'ttraff.ru'. The ML classifier strongly indicated maliciousness. The document body, though partially obfuscated, contains the same lure text and URLs, suggesting a coordinated effort to drive traffic to potentially malicious or 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.ru/wb?keyword=adjective%20list%20with%20bangla%20meaning%20pdf In PDF document text
- http://files.soulsai.studio/uploads/1/3/1/6/131606550/46d94.pdfIn PDF document text
- http://files.wildcrumb.com/uploads/1/3/2/8/132815172/vevoxibejad-leroxiwu.pdfIn PDF document text
- http://files.ferryport.org/uploads/1/3/0/9/130969386/figusidijemikifesi.pdfIn PDF document text
- http://files.grettawilson.com/uploads/1/3/1/4/131437351/5306487.pdfIn PDF document text
- http://files.thirdcinemaproductions.com/uploads/1/3/1/3/131379749/sonazez.pdfIn PDF document text
- http://files.vertexprofessionalpainting.com/uploads/1/3/1/4/131406295/fbb4346ebf.pdfIn PDF document text
- http://files.arlingtonlimoco.com/uploads/1/3/1/1/131164351/jemodu-limifopetaluvo.pdfIn PDF document text
- http://files.texashollandlops.com/uploads/1/3/1/3/131379371/7953459.pdfIn PDF document text
- http://files.biggsbassethounds.com/uploads/1/3/1/8/131857071/84fb7a2093dbc.pdfIn PDF document text
- http://files.zanyunoodles.com/uploads/1/3/0/7/130739381/sikete-wemotuta.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://jasigib.files.wordpress.com/2020/07/vajexifusowuxusakod.pdfIn PDF document text
- https://lezikij545326841.files.wordpress.com/2020/06/kidalozetipoxanupe.pdfIn PDF document text
- https://bunazixuvavu.files.wordpress.com/2020/06/xewegezogevaveferu.pdfIn PDF document text
- https://surefab.files.wordpress.com/2020/07/69604696945.pdfIn PDF document text
- https://talujudi.files.wordpress.com/2020/07/20276920976.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/siwizobudavegi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jewaxepolirabosumasedud.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sovir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/90379225571.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75130531250.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
- http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
- http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008bc3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8BC3 | 5508 bytes |
SHA-256: bbd43435c1f167be7c84cdffa037e8689394d2d0b08d3b1b991266c27e66b210 |
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font_01_sfnt_off00009e60.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9E60 | 22876 bytes |
SHA-256: be7f6bd8ac8cbbc1468bd5ea36f2f6b742029c5ab475a0cd7a6873fcdec7aec7 |
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font_02_sfnt_off0000d842.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD842 | 16156 bytes |
SHA-256: 6c55aeaaf56c1f80d402a09bda052eb6e482b3a706e5a8dbb38c4ea12b46a550 |
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