MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged as malicious by a machine learning classifier and contains numerous embedded links. One critical heuristic identified a link to known malicious redirector infrastructure (ttraff.ru), while another noted a large number of external PDF links, suggesting a link farm or distribution mechanism. The document body contains obfuscated text and URLs, further supporting a malicious intent to redirect users to potentially harmful content.
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=avancemos+1b+pdf
- http://files.phase1trackclub.com/uploads/1/3/1/4/131437157/8534241.pdf
- http://zowek.at1space.com/uploads/1/3/2/7/132710797/aaa073e3c0d.pdf
- http://tafokexi.glasskiteanthology.com/uploads/1/3/1/8/131871486/1efd5a3da.pdf
- https://cdn.shopify.com/s/files/1/0433/8660/1626/files/tijexofegasirakisugon.pdf
- https://cdn.shopify.com/s/files/1/0431/7108/6492/files/fetal_distress_adalah.pdf
- https://cdn.shopify.com/s/files/1/0433/6100/9829/files/juwugetebebejakopisojijot.pdf
- https://cdn.shopify.com/s/files/1/0431/4667/4330/files/complejo_renina_angiotensina_aldosterona.pdf
- https://cdn.shopify.com/s/files/1/0434/8385/7053/files/26275317763.pdf
- https://cdn.shopify.com/s/files/1/0430/9227/9445/files/94210773121.pdf
- https://cdn.shopify.com/s/files/1/0437/7178/9469/files/afasia_de_broca_y_wernicke.pdf
- https://cdn.shopify.com/s/files/1/0433/1329/9620/files/fifoxu.pdf
- https://cdn.shopify.com/s/files/1/0427/5470/3526/files/juganixunokomoponimebo.pdf
- https://cdn.shopify.com/s/files/1/0434/2376/0536/files/radical_function_graph.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/2283550224.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_off00004caa.binab8e26797fb8de6a5815bebcdaa9c538478ef6338bb04d9953c9e9ad2d5858a6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4CAA | 5416 bytes |
font_01_sfnt_off00005f06.bin52f30250597d2751dbcf9b4364e6868617e980dbc35fc5b2ccc974be31024c1b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F06 | 10544 bytes |
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