MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'solving simultaneous equations worksheet kuta' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious redirector attack pattern.
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=solving+simultaneous+equations+worksheet+kuta
- http://files.uptonemporium.com/uploads/1/3/1/4/131437671/burizula.pdf
- http://files.serafinaconsulting.com/uploads/1/3/2/8/132814119/katuwixavafik_pojomesiramoros_mefuj.pdf
- http://files.mytempowalk.com/uploads/1/3/2/8/132815365/6598584.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46605756913.pdf
- https://cdn.shopify.com/s/files/1/0430/8969/0773/files/fuvugomitaboguj.pdf
- https://cdn.shopify.com/s/files/1/0437/4098/7543/files/reference_evapotranspiration.pdf
- https://cdn.shopify.com/s/files/1/0435/4460/8932/files/38335352036.pdf
- https://cdn.shopify.com/s/files/1/0437/0956/3029/files/16_degrees_43_minutes_north.pdf
- https://cdn.shopify.com/s/files/1/0431/8153/9489/files/xuvozidirisokavu.pdf
- https://cdn.shopify.com/s/files/1/0432/2135/2606/files/85890695248.pdf
- https://cdn.shopify.com/s/files/1/0439/4346/1032/files/88305737613.pdf
- https://cdn.shopify.com/s/files/1/0432/4848/4507/files/nobepitijake.pdf
- https://cdn.shopify.com/s/files/1/0432/7833/6166/files/2565427180.pdf
- https://cdn.shopify.com/s/files/1/0429/6422/2101/files/jirixagabeposazunulu.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007d58.bina17885b4fd577e0298a64705d5055d2ac7c2363fd7008e9cf236b3df412a17d8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D58 | 2828 bytes |
font_01_sfnt_off00008752.bin2d8d47da06c60ee89d7a97385ffee2e9c86877dca874f3c0cba6e084900bdae2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8752 | 5544 bytes |
font_02_sfnt_off00009a0b.bin8af9a713037ce4c1c2ce54c0fa39d57659308e6a080e6c81af02bb96900435e3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A0B | 10000 bytes |
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