MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by a machine learning classifier and contains embedded links. One of these links, 'https://ttraff.ru/pify?keyword=free+christmas+wallpaper+hd+for+android', points to known malicious redirector infrastructure. The document body, though heavily obfuscated, also contains this URL and other links to PDF files, suggesting a link farm or redirection scheme designed to lead users to malicious content. The presence of numerous external PDF links further supports this attack pattern.
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=free+christmas+wallpaper+hd+for+android
- http://files.arrynblloyd.com/uploads/1/3/1/6/131606758/6ec97e.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/0088/9507/files/gojukazotokakanafejapafo.pdf
- https://cdn.shopify.com/s/files/1/0431/5637/3659/files/siv_follow_up_letter_template.pdf
- https://cdn.shopify.com/s/files/1/0430/2890/6138/files/30895636467.pdf
- https://cdn.shopify.com/s/files/1/0431/2068/9306/files/53714573911.pdf
- https://cdn.shopify.com/s/files/1/0430/5852/8405/files/15388485828.pdf
- https://cdn.shopify.com/s/files/1/0435/5214/5560/files/31751396402.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/marifurozijuzaledenikegi.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vinujavezo.pdf
- https://cdn.shopify.com/s/files/1/0429/9050/2042/files/32165858888.pdf
- https://cdn.shopify.com/s/files/1/0429/9993/9235/files/72452400675.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_off00005d77.bin94c6b48a72bd6742dfb43da4c981342220cabd1a26becfeea2f2878820580a23 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D77 | 5440 bytes |
font_01_sfnt_off00006fe7.bin490caa7a41cb0cf38a4bacb78fd295ee8a14f8b6a90e25aa0fa396e26c5e05f0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FE7 | 10080 bytes |
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