MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF documents. One of these URLs, https://ttraff.ru/pify?keyword=best+paid+android+games+free, is identified as a malicious redirector. The ML classifier also strongly flagged this PDF as malicious. The presence of a malicious redirector suggests an attempt to lure users to malicious content or phishing sites.
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=best+paid+android+games+free
- http://files.en.guacamaya.info/uploads/1/3/2/7/132740281/736524.pdf
- http://files.teamanton.net/uploads/1/3/2/6/132696506/kokilozixovewivaluri.pdf
- http://files.budreau.ca/uploads/1/3/1/8/131857527/lesojiforopavipo.pdf
- http://files.en.guacamaya.info/uploads/1/3/2/
- https://cdn.shopify.com/s/files/1/0435/6440/0798/files/89575821217.pdf
- https://cdn.shopify.com/s/files/1/0432/2898/7547/files/52124624252.pdf
- https://cdn.shopify.com/s/files/1/0431/6289/4495/files/87694435901.pdf
- https://cdn.shopify.com/s/files/1/0432/6971/8182/files/miwabefufaxidifesezata.pdf
- https://cdn.shopify.com/s/files/1/0428/1224/4134/files/vesukus.pdf
- https://cdn.shopify.com/s/files/1/0429/8774/9529/files/49898025869.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rinavupomun.pdf
- https://cdn.shopify.com/s/files/1/0433/7827/8550/files/xezegasixedaguwejobufa.pdf
- https://cdn.shopify.com/s/files/1/0429/9977/5381/files/52553042522.pdf
- https://cdn.shopify.com/s/files/1/0431/4395/4594/files/85085796267.pdf
- https://cdn.shopify.com/s/files/1/0427/9474/6023/files/82694573776.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_off00009922.bin983bbf2ba2b2133cd22aa22970d8188b44750baaf03357912c332f452d3e3ede |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9922 | 5168 bytes |
font_01_sfnt_off0000aa96.bin49dc5d0e8d18382b1cbba64cba888c6b9c1970561954a7cddfc18d53fa9e88fb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAA96 | 10260 bytes |
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