MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with a critical heuristic identifying a malicious redirector at 'https://ttraff.ru/pify?keyword=ielts+academic+reading+great+migrations+answers'. The document body, though heavily obfuscated, contains text related to IELTS academic reading, suggesting a lure for educational content. The ML classifier strongly indicates maliciousness, and the presence of multiple external links points to a link farm or redirection strategy.
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=ielts+academic+reading+great+migrations+answers
- http://files.jerryshardwarema.com/uploads/1/3/0/8/130813095/8644157.pdf
- http://files.stephenseki.com/uploads/1/3/1/4/131483445/4432d14f202ab6.pdf
- http://pututakiv.szienz.com/uploads/1/3/1/4/131437657/lebipafom-buzareja-niwova-mupusewenomu.pdf
- https://cdn.shopify.com/s/files/1/0434/7399/3890/files/77831783113.pdf
- https://cdn.shopify.com/s/files/1/0431/9199/2484/files/37868211215.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/36281161478.pdf
- https://cdn.shopify.com/s/files/1/0437/0622/0697/files/26211092923.pdf
- https://cdn.shopify.com/s/files/1/0428/2040/3356/files/pivew.pdf
- https://cdn.shopify.com/s/files/1/0438/9847/0555/files/zamezila.pdf
- https://cdn.shopify.com/s/files/1/0429/0389/6230/files/kupelexubefivivu.pdf
- https://cdn.shopify.com/s/files/1/0430/9660/4825/files/vokatajijasidusuno.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_off0000d7f6.binaa762e20a09c69767527d6c643e282fdcceb123765ff47657bc1ccdc780bf2a7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7F6 | 5288 bytes |
font_01_sfnt_off0000e9e3.bin108e40fb892db6320d3a7146a133f43373c105e805e6a30dfaf18b71986ee680 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9E3 | 17388 bytes |
font_02_sfnt_off0001151b.bine93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1151B | 16204 bytes |
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