MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links, including a primary link to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains references to academic topics and URLs, suggesting a lure to disguise malicious intent. The ML classifier strongly indicated maliciousness, and the presence of a malicious redirector link confirms the delivery of a malicious payload.
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=bisection+method+numerical+analysis+pdf
- http://rukagex.stepheningram.net/uploads/1/3/0/9/130969754/bagavupinubujituk.pdf
- http://files.ccpdiscoveryschool.com/uploads/1/3/1/3/131378943/04d7f4ccb9.pdf
- http://files.kickit4jdrf.org/uploads/1/3/2/6/132680974/nifupixa-jevovomem-zemusat-simaf.pdf
- https://cdn.shopify.com/s/files/1/0437/0821/9547/files/15933210428.pdf
- https://cdn.shopify.com/s/files/1/0427/8606/2495/files/77354846530.pdf
- https://cdn.shopify.com/s/files/1/0431/4251/2791/files/xilupevagugajibefimosupaj.pdf
- https://cdn.shopify.com/s/files/1/0431/4578/9600/files/47012422194.pdf
- https://cdn.shopify.com/s/files/1/0433/9492/4694/files/personal_mission_statement.pdf
- https://cdn.shopify.com/s/files/1/0437/2915/8295/files/7244701019.pdf
- https://cdn.shopify.com/s/files/1/0430/1619/2153/files/xuvipogafanog.pdf
- https://cdn.shopify.com/s/files/1/0432/0477/2000/files/jidigukaru.pdf
- https://cdn.shopify.com/s/files/1/0429/5108/2143/files/47413016976.pdf
- https://cdn.shopify.com/s/files/1/0429/6949/7753/files/kumolisozegukiru.pdf
- https://cdn.shopify.com/s/files/1/0432/7702/5446/files/kadiviwotijugarovej.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_off00006118.bin10a599f6a80f919773b9ba5027ddb585c6c54c97aa9395d759b911d07930465f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6118 | 5544 bytes |
font_01_sfnt_off000073d4.bin14feeea8797978882451798e3ba90802061c539bfdd334f669263ea96366fe80 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73D4 | 14152 bytes |
font_02_sfnt_off0000a184.binf7282090e270060608fdc575ded0b184a97243f724fc845514d2e81390c10c7f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA184 | 16144 bytes |
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