MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.ru). This indicates a link farm designed to obscure the final destination and potentially distribute malicious content or conduct phishing. 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/wb?keyword=hospital%20management%20system%20project%20in%20vb.net%20pdf
- http://files.metalmeltdown.com/uploads/1/3/1/4/131453276/joviloxaw.pdf
- http://files.botkinscommunitypark.com/uploads/1/3/1/6/131606260/rebex.pdf
- http://files.niuchin.com/uploads/1/3/0/8/130813982/6561359.pdf
- https://cdn.shopify.com/s/files/1/0428/1679/8886/files/root_words_al_huda.pdf
- https://cdn.shopify.com/s/files/1/0427/6856/4380/files/49759639876.pdf
- https://cdn.shopify.com/s/files/1/0435/2340/8032/files/xaparujesavadurowosinekiv.pdf
- https://cdn.shopify.com/s/files/1/0431/6338/6016/files/jiruvux.pdf
- https://cdn.shopify.com/s/files/1/0431/4556/0219/files/74279739178.pdf
- https://cdn.shopify.com/s/files/1/0434/7628/7648/files/53422220089.pdf
- https://cdn.shopify.com/s/files/1/0433/4954/1017/files/tinkers_construct_splinters.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/59854739703.pdf
- https://cdn.shopify.com/s/files/1/0431/6132/1634/files/17051104657.pdf
- https://cdn.shopify.com/s/files/1/0428/6483/6764/files/download_rangkuman_biologi_sma.pdf
- https://cdn.shopify.com/s/files/1/0433/3328/8088/files/kebumobusan.pdf
- https://cdn.shopify.com/s/files/1/0432/3183/8368/files/nelson_stud_welding.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005740.bineb9987eee823786217dcbb59e846c0162fb4f398591f4be36741c93b3c513089 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5740 | 5632 bytes |
font_01_sfnt_off00006a55.bin5d3e00d8147d7b1c0d964fe14f0caf47b7cd5dbdfd814df149f74b5bd418a29a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A55 | 10032 bytes |
font_02_sfnt_off00008cb8.bin0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8CB8 | 4324 bytes |
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