MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links, one of which points to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, appears to be related to riddles, suggesting a social engineering lure. The presence of a PDF_MALICIOUS_REDIRECTOR_LINK heuristic firing strongly indicates the intent to redirect users to malicious infrastructure. The ML classifier also flagged this PDF with high confidence.
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=hardest+riddles+with+answers+in+english
- http://files.thirdwavedetroit.com/uploads/1/3/1/4/131407734/relofitotef_govosajexi.pdf
- http://files.matthewmitlas.com/uploads/1/3/1/4/131408241/zegewosazakolup.pdf
- http://files.vapethecrown.com/uploads/1/3/0/9/130969160/tuwupugavig_rezeped_gekowitefe.pdf
- https://cdn.shopify
- https://cdn.shopify.com/s/files/1/0429/3525/5203/files/gidatoludupadeko.pdf
- https://cdn.shopify.com/s/files/1/0432/0316/6369/files/13050805241.pdf
- https://cdn.shopify.com/s/files/1/0432/7053/7374/files/majotetemobubenabikikugam.pdf
- https://cdn.shopify.com/s/files/1/0428/5313/8591/files/9618293611.pdf
- https://cdn.shopify.com/s/files/1/0431/7233/1675/files/92714991103.pdf
- https://cdn.shopify.com/s/files/1/0429/8014/7359/files/52249662178.pdf
- https://cdn.shopify.com/s/files/1/0433/9964/3286/files/liregiwobidifoke.pdf
- https://cdn.shopify.com/s/files/1/0431/0702/5056/files/40682688381.pdf
- https://cdn.shopify.com/s/files/1/0430/9018/2297/files/povuxidedaxaziwa.pdf
- https://cdn.shopify.com/s/files/1/0429/9181/2771/files/23878844385.pdf
- https://cdn.shopify.com/s/files/1/0428/8364/5599/files/29402733509.pdf
- https://cdn.shopify.com/s/files/1/0428/7338/9223/files/35517794259.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_off00008328.bin5a83e6576f376ad6a9e51d44d787c05a0fc74bc1979cd677427b23bd8996bb4f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8328 | 4816 bytes |
font_01_sfnt_off0000937a.binefbef08d3cf7ad6c40306994b0f08500b13b791a579f0673c5d3012b7481355e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x937A | 10224 bytes |
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