MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a malicious redirector link disguised with a lure related to spreadsheet extensions. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the link points to known malicious infrastructure. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the malicious URL and a list of other URLs, likely part of a link farm to improve search engine ranking for malicious content.
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=spreadsheet+extension+thunkable
- http://files.buzz4bugs.com/uploads/1/3/1/4/131437969/xolereb-someji.pdf
- https://cdn.shopify.com/s/files/1/0452/5824/4257/files/luxifosugokoja.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/63016720996.pdf
- https://cdn.shopify.com/s/files/1/0434/4964/7261/files/letimetovonisajonaxalu.pdf
- https://cdn.shopify.com/s/files/1/0434/4843/4840/files/ribevejamaduxemafix.pdf
- https://cdn.shopify.com/s/files/1/0438/2552/8989/files/mepalevesebijozobive.pdf
- https://cdn.shopify.com/s/files/1/0438/7936/6811/files/verbier_festival_2020_programme.pdf
- https://cdn.shopify.com/s/files/1/0435/2920/7957/files/snacks_recipes_in_telugu.pdf
- https://cdn.shopify.com/s/files/1/0435/9897/1038/files/43908449843.pdf
- https://cdn.shopify.com/s/files/1/0433/4478/9669/files/busuxudezeximusugizopolum.pdf
- https://cdn.shopify.com/s/files/1/0433/0943/2990/files/povodazefe.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005e0f.bin7e6669709aced786a827f6db6c5968f1b5ef05841aa0a0004529c058d6bc39a8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E0F | 5424 bytes |
font_01_sfnt_off00007061.bin363d2450d2bb2a4597f9e062d7b86fe6bd43573c58ba270018cd54debf22dae2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7061 | 2016 bytes |
font_02_sfnt_off000079ba.bin5222d7303cafc7a1ed42ac102c845b288e662e02dfc420db3bfc2866e4ca8ea9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79BA | 10636 bytes |
font_03_sfnt_off00009e42.bind781c508aaf473e50263a6aabc3f4161b7fa10724c54bb8d35addee38a7f1c44 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9E42 | 16164 bytes |
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