MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically the URL https://ttraff.ru/wb?keyword=ethyl%20alcohol%20msds%20pdf. This is supported by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated and contains embedded URLs, further supporting the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=ethyl%20alcohol%20msds%20pdf
- http://xadav.zakariyakhunji.com/uploads/1/3/1/6/131606349/8b31f33.pdf
- http://files.larosaparentcoach.com/uploads/1/3/0/8/130814297/luwabuvama-nuwipag-febazomanedod-nabidajaf.pdf
- http://manoxat.nanaimohospiceshoppe.com/uploads/1/3/0/8/130815017/dagigujedemilewabuvi.pdf
- https://cdn.shopify.com/s/files/1/0433/8378/3575/files/peraxewuwujuzoziza.pdf
- https://cdn.shopify.com/s/files/1/0432/8338/2427/files/54345775574.pdf
- https://cdn.shopify.com/s/files/1/0430/9817/7693/files/mia_mcreynolds_twitter.pdf
- https://cdn.shopify.com/s/files/1/0432/0886/8008/files/guwuda.pdf
- https://cdn.shopify.com/s/files/1/0438/8392/1563/files/28303993227.pdf
- https://cdn.shopify.com/s/files/1/0429/9345/1159/files/zasoxopaluzat.pdf
- https://cdn.shopify.com/s/files/1/0430/7720/6178/files/fomafowa.pdf
- https://cdn.shopify.com/s/files/1/0434/5135/1200/files/cambridge_o_level_mathematics_notes.pdf
- https://cdn.shopify.com/s/files/1/0437/8610/9086/files/multivariate_regression_analysis.pdf
- https://cdn.shopify.com/s/files/1/0432/6922/6656/files/87727312170.pdf
- https://cdn.shopify.com/s/files/1/0428/2246/7750/files/vodogowarimoje.pdf
- https://cdn.shopify.com/s/files/1/0436/2256/4000/files/business_progress_report_sample.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000040ee.binb906e38ab25642759d39d289569939a6eca2a3c27a723c23c844e289c1d991f5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x40EE | 5360 bytes |
font_01_sfnt_off00005314.bin414bce84e7136424953ec29096ee5098034224517c687507f556b91270082866 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5314 | 8820 bytes |
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