MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a high number of embedded links, many of which point to a link farm designed to host malicious content. One critical heuristic identified a link to a known malicious redirector, ttraff.ru, which is likely used to obscure the final destination of the malicious payload. The document body, though partially corrupted, contains URLs that are consistent with a lure for technical specifications, aiming to trick users into clicking malicious 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=hp%20z800%20workstation%20specs%20pdf
- http://dalosazo.charleswakefieldartist.com/uploads/1/3/0/7/130775727/tafevu.pdf
- http://jutojoto.seychellesbirdrecordscommittee.com/uploads/1/3/0/7/130775803/gamunup.pdf
- http://files.chirocure.net/uploads/1/3/1/4/131405948/rolasuralunip.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/646255477.pdf
- https://cdn.shopify.com/s/files/1/0429/8588/1759/files/adobe_dreamweaver_cs3_tutorial_free_download.pdf
- https://cdn.shopify.com/s/files/1/0434/4433/8854/files/fluid_mechanics_solution_manual.pdf
- https://cdn.shopify.com/s/files/1/0432/4455/2354/files/botany_for_degree_students_algae.pdf
- https://cdn.shopify.com/s/files/1/0433/7503/4520/files/besobijaneguxebu.pdf
- https://cdn.shopify.com/s/files/1/0433/6081/3208/files/how_to_unfollow_someone_on_facebook.pdf
- https://cdn.shopify.com/s/files/1/0433/0127/3758/files/60291298735.pdf
- https://cdn.shopify.com/s/files/1/0428/4468/4454/files/21577024140.pdf
- https://cdn.shopify.com/s/files/1/0432/5464/4894/files/7016797134.pdf
- https://cdn.shopify.com/s/files/1/0434/5331/7272/files/chac_mool_carlos_fuentes.pdf
- https://cdn.shopify.com/s/files/1/0432/2865/9874/files/borijisitajo.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_off00005938.bin739330c447615e4581c9742e7ac59c5fa9bbf76d1697d8cae97b31b82cb9b72f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5938 | 5620 bytes |
font_01_sfnt_off00006c7b.binad3c80d810a04d46dce3def858c2326aebce4eabc1dc3097e535973c67d888ea |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C7B | 14940 bytes |
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