MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF contains a link farm designed to manipulate search engine results, directing users to a known malicious redirector. The primary lure appears to be a resume format for biotechnology freshers, which is a common social engineering tactic. The ML classifier strongly indicated maliciousness, and the PDF structure itself contained numerous external links.
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/wb?keyword=resume%20format%20for%20biotechnology%20freshers%20pdf
- http://files.tomgauthier.com/uploads/1/3/1/3/131381693/dukenebipatiw_soxagobipo_nonirawa_wedovomelig.pdf
- http://files.carpetcleanersnetwork.com/uploads/1/3/0/7/130776266/6e4fc0b678ed5b.pdf
- http://files.mariecharpentier.net/uploads/1/3/1/4/131483019/batipaxadas.pdf
- http://files.orchardstreetmusic.uk/uploads/1/3/1/6/131606533/7c00826db81557f.pdf
- http://files.tomgauthier.com/uploads/
- https://gexefaduxoka.files.wordpress.com/2020/06/gufukapekitewu.pdf
- https://defunudedi.files.wordpress.com/2020/07/72074231319.pdf
- https://vajowobago.files.wordpress.com/2020/07/27803408665.pdf
- https://dedokufon.files.wordpress.com/2020/07/loziwazimo.pdf
- https://mapulosuxuju.files.wordpress.com/2020/07/29879914694.pdf
- https://pejubedigif.files.wordpress.com/2020/06/17709169466.pdf
- https://cdn.shopify.com/s/files/1/0432/5359/6310/files/jivuwujewekufulononobuw.pdf
- https://cdn.shopify.com/s/files/1/0430/5669/3397/files/karilutifegafug.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jepomosojavadoji.pdf
- https://cdn.shopify.com/s/files/1/0435/1747/7019/files/nogovipuguwidixamodatila.pdf
- https://cdn.shopify.com/s/files/1/0431/0702/5056/files/riwabomurajipaf.pdf
- https://cdn.shopify.com/s/files/1/0428/7060/3932/files/tusibekinob.pdf
- https://cdn.shopify.com/s/files/1/0433/5940/4197/files/72262458007.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_off00007aac.bin6a66650710eb8b1cc8ac946bebd245405a4052d44699119dda911d5978cfca41 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AAC | 5700 bytes |
font_01_sfnt_off00008df1.bina7a59ccb96178f1aadab55d62aa91356f2bb324dddefcfc64f601249ad889968 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8DF1 | 10448 bytes |
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