MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link to a redirector service, which is a common tactic for distributing malware or phishing pages. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this behavior. The document body, though heavily obfuscated, contains the same URL, suggesting an attempt to disguise the malicious link as content related to a 'capital market quiz'. The presence of numerous other links to PDF files, as flagged by PDF_SEO_LINK_FARM, further indicates a link farm designed to obscure the true malicious destination.
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.com/pify?keyword=capital+market+quiz+with+answers
- http://files.iberianroutes.com/uploads/1/3/1/0/131070718/222bf9b437c9.pdf
- http://files.thefoxdenbridgeport.com/uploads/1/3/0/7/130739318/4582826.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0427/9386/1279/files/gidekilenozaz.pdf
- https://cdn.shopify.com/s/files/1/0429/1349/7247/files/a_wrinkle_in_time_chapter_4.pdf
- https://cdn.shopify.com/s/files/1/0433/9613/7111/files/lofin.pdf
- https://cdn.shopify.com/s/files/1/0433/6317/2502/files/jasenimu.pdf
- https://cdn.shopify.com/s/files/1/0432/9367/1588/files/88542565269.pdf
- https://cdn.shopify.com/s/files/1/0433/4888/5662/files/leduli.pdf
- https://cdn.shopify.com/s/files/1/0433/7978/5891/files/duzel.pdf
- https://cdn.shopify.com/s/files/1/0439/1701/7243/files/86732318069.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78683638278.pdf
- https://cdn.shopify.com/s/files/1/0428/8158/1209/files/1743310965.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29331550606.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005c3a.bindc1e753e14ef522fb24b8dac0082ce44e7e39b51ceb389ea3535614e2543db17 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C3A | 5296 bytes |
font_01_sfnt_off00006e33.bin4ab94e9043e5ded55f466111672018861cbeac2960756d6104a01f2ebad239b9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E33 | 10752 bytes |
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