MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though partially corrupted, contains text related to 'formal letter writing template australia' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier strongly flagged this PDF as malicious, and the presence of a link farm further supports 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=formal+letter+writing+template+australia
- http://files.jackyuhuazhou.com/uploads/1/3/1/3/131380759/kaxoz.pdf
- http://files.barriehellyermotors.co.nz/uploads/1/3/2/7/132741029/3594139.pdf
- http://files.2crazyredheads.com/uploads/1/3/1/4/131483265/femuzegarogili.pdf
- http://lotesolu.kira-marie-mccullough.com/uploads/1/3/1/0/131070872/d47232fa8a8.pdf
- http://vusekubi.javascriptsandmore.com/uploads/1/3/2/7/132712358/5e6de51.pdf
- https://cdn.shopify.com/s/files/1/0432/0778/6657/files/66417645598.pdf
- https://cdn.shopify.com/s/files/1/0440/6591/5045/files/putanerivafudalufazaniwim.pdf
- https://cdn.shopify.com/s/files/1/0440/8298/7158/files/tri_fold_brochure_software_free.pdf
- https://cdn.shopify.com/s/files/1/0434/5741/3270/files/pathogenesis_of_acne_vulgaris.pdf
- https://cdn.shopify.com/s/files/1/0433/8850/2174/files/12153860118.pdf
- https://cdn.shopify.com/s/files/1/0434/3637/6214/files/52245434025.pdf
- https://cdn.shopify.com/s/files/1/0428/9023/1974/files/barbie_doll_ki_pic.pdf
- https://cdn.shopify.com/s/files/1/0436/8482/3205/files/zabezigenex.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_off00005bc1.bina098bf2458cad066dc24ff9e0c64c3324e7cd3fcab57e4336f39bfda0a22390c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5BC1 | 5188 bytes |
font_01_sfnt_off00006d61.binc9ab8eded8bf39cf7f40f0ccc6c1ce6be27b38337a2c8a890c5c68375a158726 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D61 | 9856 bytes |
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