MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a significant number of embedded URLs, with the heuristic PDF_SEO_LINK_FARM indicating a link farm strategy. One of these URLs, https://ttraff.ru/pify?keyword=wps+spreadsheet+formats, was flagged as a malicious redirector by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated and appears to contain the malicious URL and other PDF links.
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/pify?keyword=wps+spreadsheet+formats
- http://mesuni.eatsleepact.com/uploads/1/3/1/4/131452839/7792639.pdf
- https://cdn.shopify.com/s/files/1/0428/4914/0902/files/peguruginowogavupanoz.pdf
- https://cdn.shopify.com/s/files/1/0430/6213/2897/files/rezem.pdf
- https://cdn.shopify.com/s/files/1/0431/7279/0432/files/16248035038.pdf
- https://cdn.shopify.com/s/files/1/0429/6785/9359/files/rurenumagofowikepejuroli.pdf
- https://cdn.shopify.com/s/files/1/0434/8660/9573/files/mazemo.pdf
- https://cdn.shopify.com/s/files/1/0430/7792/7072/files/singleton_in_python.pdf
- https://cdn.shopify.com/s/files/1/0440/9065/4870/files/10294641260.pdf
- https://cdn.shopify.com/s/files/1/0432/2358/0839/files/jeserefab.pdf
- https://cdn.shopify.com/s/files/1/0430/5184/3737/files/laxigu.pdf
- https://cdn.shopify.com/s/files/1/0440/9786/3832/files/metivexer.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000060fb.bin341b8247452601d151ee746263b3b403a4c872e9566df24db146724b68f60f90 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60FB | 4532 bytes |
font_01_sfnt_off000070f8.bin79cbe5c1d025250d3b5e4f197230acaf22463c290ad0e889f7cea503d3ebef38 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70F8 | 5264 bytes |
font_02_sfnt_off000082c7.bin4cfe692e6fa265023340bd31a339f9908067894d01aa2a83d727ddd37ce403c4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x82C7 | 10224 bytes |
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