MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a significant number of embedded links, with a critical heuristic firing indicating a link farm pointing to known malicious redirector infrastructure. The primary malicious URL identified is https://ttraff.ru/pify?keyword=couchbase+lite+android+example. While the document body is heavily obfuscated, the presence of numerous links and the ML classifier's high confidence score strongly suggest a malicious intent, likely related to phishing or malware delivery through redirection.
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=couchbase+lite+android+example
- http://nosoto.remembrancestars.com/uploads/1/3/1/4/131438044/sakeluram_regetetolekuk_wotogope.pdf
- http://files.cbweis.com/uploads/1/3/0/7/130740252/dadijerusovilij-kepago.pdf
- https://cdn.shopify.com/s/files/1/0431/5293/3018/files/tufawiroxijolunomimewef.pdf
- https://cdn.shopify.com/s/files/1/0429/4210/3719/files/22180867650.pdf
- https://cdn.shopify.com/s/files/1/0429/5730/8063/files/bunolufefibimadi.pdf
- https://cdn.shopify.com/s/files/1/0433/9063/2101/files/informe_de_movimiento_rectilineo_uniformemente_variado.pdf
- https://cdn.shopify.com/s/files/1/0431/2930/7293/files/befanefazugafonop.pdf
- https://cdn.shopify.com/s/files/1/0429/9954/6010/files/xajabinuzagigoduk.pdf
- https://cdn.shopify.com/s/files/1/0435/3546/6655/files/dokkan_android_19_team.pdf
- https://cdn.shopify.com/s/files/1/0435/2226/1143/files/xewukim.pdf
- https://cdn.shopify.com/s/files/1/0440/7368/1061/files/53651050401.pdf
- https://cdn.shopify.com/s/files/1/0434/8503/6706/files/comparative_balance_sheet_analysis.pdf
- https://cdn.shopify.com/s/files/1/0429/6825/2565/files/puwobanemaluka.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_off00006633.bin6919b62d1415aab20f736db39c1832f992f9f8318cde6c3e655ad2054a05f704 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6633 | 5428 bytes |
font_01_sfnt_off0000786c.bin95d5a1c3980de7f309163a88123e5108b211592bf2f5e78f6863beaedc8e24ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x786C | 11400 bytes |
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