MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass external link farm, with a primary link pointing to a known malicious redirector. The redirector URL is https://ttraff.ru/pify?keyword=bash+shell+scripting+tutorialspoint+pdf, which likely leads to a malicious payload. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated and contains embedded URLs, further supporting the malicious intent.
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=bash+shell+scripting+tutorialspoint+pdf
- http://xunifu.reunionphotos.net/uploads/1/3/1/4/131410812/2550254.pdf
- http://files.sanantoniooutdoorliving.net/uploads/1/3/0/7/130738835/4940825.pdf
- http://files.verdancecreations.com/uploads/1/3/1/6/131607522/tewovudinubelepugi.pdf
- http://togemi.alma-leather.com/uploads/1/3/1/0/131070872/1868925.pdf
- https://cdn.shopify.com/s/files/1/0431/5149/1236/files/sonexometisokeloniziribu.pdf
- https://cdn.shopify.com/s/files/1/0437/1336/4121/files/75971195829.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/baxumedufimoval.pdf
- https://cdn.shopify.com/s/files/1/0437/9423/5553/files/anastasius_bibliothecarius.pdf
- https://cdn.shopify.com/s/files/1/0432/8374/2884/files/virilopaxeduvisozab.pdf
- https://cdn.shopify.com/s/files/1/0431/4818/1666/files/posotimilobolodolokixew.pdf
- https://cdn.shopify.com/s/files/1/0451/0813/4053/files/informe_de_auditoria_de_sistemas_de_informacion.pdf
- https://cdn.shopify.com/s/files/1/0433/7870/4536/files/predator_generator_8750.pdf
- https://cdn.shopify.com/s/files/1/0429/5124/5987/files/82727724133.pdf
- https://cdn.shopify.com/s/files/1/0436/3046/1081/files/jurnal_biosistematika.pdf
- https://cdn.shopify.com/s/files/1/0435/5630/7107/files/dipole_antenna_theory.pdf
- https://cdn.shopify.com/s/files/1/0434/7419/0498/files/voxuv.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_off00006650.bin9c5d64747bbbd3c264f631b33107834d679b255d2123c4fbc666f76e2ba861e0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6650 | 5468 bytes |
font_01_sfnt_off000078d9.bin6f9a1c52f208c2c6ccb9639b1070a26daf52a6c26d120ada17ba5d263bb7c570 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78D9 | 11112 bytes |
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