MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one specifically to a known malicious redirector at ttraff.ru. This indicates a phishing or redirection attack designed to lead users to malicious content. The ML classifier strongly supports the malicious nature of this PDF.
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=medical+biophysics+damjanovich+pdf
- http://files.northwoodshaman.com/uploads/1/3/1/8/131857115/3ae3c70.pdf
- http://files.theproseccoproject.com/uploads/1/3/1/4/131407552/3384683.pdf
- http://files.circular-canary.com/uploads/1/3/0/9/130969896/9774056.pdf
- http://files.anniebeautyspa.com/uploads/1/3/0/7/130739542/zajatalajofuzin-xavadimorexij-bebasete-dozupixedine.pdf
- http://files.williamstownjuniorsnetballclub.com.au/uploads/1/3/0/7/130775677/7073730.pdf
- https://cdn.shopify.com/s/files/1/0430/7199/6053/files/vejazitanamuzakejujupebu.pdf
- https://cdn.shopify.com/s/files/1/0432/7918/8118/files/22767601267.pdf
- https://cdn.shopify.com/s/files/1/0430/9411/4455/files/adrenal_gland_tumors.pdf
- https://cdn.shopify.com/s/files/1/0428/5811/9334/files/67007646910.pdf
- https://cdn.shopify.com/s/files/1/0434/9191/7989/files/international_champions_cup_2020_fixtures.pdf
- https://cdn.shopify.com/s/files/1/0429/4384/0412/files/lavufitorip.pdf
- https://cdn.shopify.com/s/files/1/0427/4287/4278/files/xevubidi.pdf
- https://cdn.shopify.com/s/files/1/0430/9562/1796/files/kukavo.pdf
- https://cdn.shopify.com/s/files/1/0430/1350/5185/files/acs_organic_chemistry_exam.pdf
- https://cdn.shopify.com/s/files/1/0431/2439/2087/files/statistical_data_mining_using_sas_applications.pdf
- https://cdn.shopify.com/s/files/1/0431/8353/8331/files/bovobavisitapo.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_off00005502.bin84df80c658c497feac30d3addf3cb7a44f0b48d1a390c8b2ab077634ad34ded0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5502 | 5680 bytes |
font_01_sfnt_off0000684a.binc86f550cf2d16ca72fa3285023e37024a942363cb2777d228b21e84ba9093639 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x684A | 10488 bytes |
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