MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
This PDF document contains a mass of external links, including one pointing to a known malicious redirector infrastructure at ttraff.ru. The document body, though heavily obfuscated, contains text related to a 'security plus certification study guide', suggesting a lure to trick users into clicking the malicious links. The ML classifier strongly supports the malicious verdict.
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=security+plus+certification+study+guide
- http://zekipene.teddingtonbowlsclub.org/uploads/1/3/2/6/132681233/binidoxawubo.pdf
- http://files.hdihidupsehatkaya.com/uploads/1/3/2/7/132741241/5695423.pdf
- http://lenuveda.richvens.co.uk/uploads/1/3/0/7/130739783/raxila.pdf
- https://cdn.shopify.com/s/files/1/0433/0556/6366/files/gafixuvatara.pdf
- https://cdn.shopify.com/s/files/1/0428/2771/0630/files/96375563944.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32150460784.pdf
- https://cdn.shopify.com/s/files/1/0430/9850/5369/files/cincuenta_sombras_mas_oscuras.pdf
- https://cdn.shopify.com/s/files/1/0437/8555/2030/files/tusuzuwenipukunizi.pdf
- https://cdn.shopify.com/s/files/1/0431/3966/1986/files/54377184270.pdf
- https://cdn.shopify.com/s/files/1/0450/0937/1286/files/fanuc_cnc_lathe_programming_free_download.pdf
- https://cdn.shopify.com/s/files/1/0434/1052/2277/files/26067810824.pdf
- https://cdn.shopify.com/s/files/1/0427/5847/1846/files/98073417077.pdf
- https://cdn.shopify.com/s/files/1/0429/6228/8793/files/13806675102.pdf
- https://cdn.shopify.com/s/files/1/0430/0223/2983/files/mudegomunifolojotiwo.pdf
- https://cdn.shopify.com/s/files/1/0454/2021/6476/files/bluestacks_for_pc_filehippo.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_off000064e3.bin57f1c83c495d19743618fa0c1ff249d755575ed07f50d1f7dd9aee29450e9456 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x64E3 | 5528 bytes |
font_01_sfnt_off000077c1.binec1f6bf2ab19ac4e21861ac98592fd3430e3d8a9a01e5d778ebf27b03ee36a80 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77C1 | 14796 bytes |
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