MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a link farm designed to mimic legitimate study materials, specifically for 'CBT nuggets aws certified cloud practitioner'. The primary malicious link, https://ttraff.cc/pify?keyword=cbt+nuggets+aws+certified+cloud+practitioner, is identified as a redirector to malicious infrastructure. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous embedded URLs further supports a malicious intent, likely for phishing or malware distribution.
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.cc/pify?keyword=cbt+nuggets+aws+certified+cloud+practitioner
- http://files.saintalphonsusschool.org/uploads/1/3/1/8/131857071/b41fba5.pdf
- https://cdn.shopify.com/s/files/1/0438/7245/2776/files/88009515973.pdf
- https://cdn.shopify.com/s/files/1/0428/8148/2919/files/6533890560.pdf
- https://cdn.shopify.com/s/files/1/0436/5818/2809/files/morfologi_ageratum_conyzoides.pdf
- https://cdn.shopify.com/s/files/1/0430/2359/7725/files/92139430552.pdf
- https://cdn.shopify.com/s/files/1/0434/9090/2166/files/soguvase.pdf
- https://cdn.shopify.com/s/files/1/0436/1509/2893/files/1980_ford_f100.pdf
- https://cdn.shopify.com/s/files/1/0431/0925/3286/files/25939733327.pdf
- https://cdn.shopify.com/s/files/1/0427/4061/3286/files/92389968470.pdf
- https://cdn.shopify.com/s/files/1/0434/3041/2454/files/38765866903.pdf
- https://cdn.shopify.com/s/files/1/0437/2869/9553/files/capital_market_magazine_free_download.pdf
- https://cdn.shopify.com/s/files/1/0431/3825/2957/files/ccna_2_chapter_4_exam_answers_2018.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_off0000781e.binadc9f3cf7aa403d1d7b4cabb54c10b0dfeb47104053a7fe412f9639d80e72f7b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x781E | 5460 bytes |
font_01_sfnt_off00008acd.bin5b381eb4b3ac792213798ad3e71c39ca46a02012cbb45022a73560cabdc3ee52 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8ACD | 10732 bytes |
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