MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged as malicious by a machine learning classifier and contains numerous embedded links. One critical heuristic identified a link to a known malicious redirector, and another noted a large number of external PDF links, suggesting a link farm. The document body, though heavily obfuscated, contains the URL https://ttraff.ru/pify?keyword=listening+answers+of+job+satisfaction+study, which is likely the primary 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.ru/pify?keyword=listening+answers+of+job+satisfaction+study
- http://ganafore.bigislandghosttours.com/uploads/1/3/0/8/130814297/5400947.pdf
- http://files.graffitiwgratitude.com/uploads/1/3/0/7/130738814/808e7b1556b9ad.pdf
- http://sonotof.trendsterrabella.com/uploads/1/3/2/7/132712062/978203.pdf
- http://damov.tilleyrent.com/uploads/1/3/0/7/130738850/9547366.pdf
- https://cdn.shopify.com/s/files/1/0432/6958/7104/files/cirrosis_y_varices_esofagicas.pdf
- https://cdn.shopify.com/s/files/1/0461/9209/9477/files/89242825639.pdf
- https://cdn.shopify.com/s/files/1/0454/5907/9318/files/autodesk_3ds_max_education.pdf
- https://cdn.shopify.com/s/files/1/0431/1462/7234/files/bergamota_doterra_espaol.pdf
- https://cdn.shopify.com/s/files/1/0428/6241/1935/files/jemuduru.pdf
- https://cdn.shopify.com/s/files/1/0431/2861/9168/files/loan_agreement_forms.pdf
- https://cdn.shopify.com/s/files/1/0441/4291/9832/files/jonaro.pdf
- https://cdn.shopify.com/s/files/1/0430/9575/2864/files/78863291147.pdf
- https://cdn.shopify.com/s/files/1/0429/9961/1553/files/fogifuluradafevixukujir.pdf
- https://cdn.shopify.com/s/files/1/0439/4146/2174/files/13060401215.pdf
- https://cdn.shopify.com/s/files/1/0431/6784/2459/files/fabixazifuvusovitoromupig.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_off00005d55.bin9ec5d2c2f12f292d169b945022c44f7679efb84e66cdc0f11ccdea98fe620522 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D55 | 5508 bytes |
font_01_sfnt_off0000702c.binfd123c91afa04033e6dfbd211e47d47a87397cb6df371d2e8727a7e202c73bf0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x702C | 10212 bytes |
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