MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links designed to appear as legitimate documents, but one link, disguised as a 'Carrier aircon inverter split type manual', redirects to a known malicious infrastructure. The ML classifier strongly indicates maliciousness, and the presence of numerous external links suggests a link farm or SEO poisoning tactic to distribute malicious content. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.
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.cc/pify?keyword=carrier+aircon+inverter+split+type+manual
- http://vitejiv.djspeaking.com/uploads/1/3/1/4/131409090/43e59322a.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0448/1361/5264/files/caller_id_location_tracker.pdf
- https://cdn.shopify.com/s/files/1/0436/5264/5017/files/vision_ias_current_affairs_may_2020_in_english.pdf
- https://cdn.shopify.com/s/files/1/0428/8099/1388/files/48005398372.pdf
- https://cdn.shopify.com/s/files/1/0428/2990/6079/files/lides.pdf
- https://cdn.shopify.com/s/files/1/0446/8817/9353/files/building_design_and_drawing_book_download.pdf
- https://cdn.shopify.com/s/files/1/0428/9436/0735/files/kinetezeduj.pdf
- https://cdn.shopify.com/s/files/1/0435/0210/8836/files/ms_access_vba_tutorial_free_download.pdf
- https://cdn.shopify.com/s/files/1/0436/8983/6697/files/vekabomijapojekasom.pdf
- https://cdn.shopify.com/s/files/1/0433/0101/1611/files/39957377411.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000476e.bin6318fdbbce5a7a7e35d4923d5f4b292cf89ca4306a86810cca796ff5feb0da35 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x476E | 5148 bytes |
font_01_sfnt_off000058e2.bin4721f7da5281a1fdd531596990ceec2374da126902a4c6f94aa1c920a54f4eb8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x58E2 | 9676 bytes |
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