MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains multiple embedded URLs, with a critical heuristic firing for a malicious redirector link to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'flatland full book pdf' and the malicious URL, suggesting a lure. The presence of numerous SEO-optimized PDF links, many pointing to Shopify, indicates a link farm strategy to obscure the malicious destination. The ML classifier also strongly flagged this PDF as malicious.
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.com/pify?keyword=flatland+full+book+pdf
- http://tadar.sethcarper.com/uploads/1/3/1/0/131069759/71877ad09701d4.pdf
- http://files.wachurchofchrist.com/uploads/1/3/0/9/130969358/nosadalamu.pdf
- http://files.heidielizabethphilipsenmeissner.com/uploads/1/3/1/8/131856318/2825174.pdf
- https://cdn.shopify.com/s/files/1/0434/6318/0454/files/algorithms_in_java_parts_1_4_robert_sedgewick.pdf
- https://cdn.shopify.com/s/files/1/0428/4389/8019/files/kebokofutavanagi.pdf
- https://cdn.shopify.com/s/files/1/0432/1171/8820/files/pijukozewofemarukifo.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wetitoditasenubekuxon.pdf
- https://cdn.shopify.com/s/files/1/0428/6929/3215/files/xuwotokomosegagabobafa.pdf
- https://cdn.shopify.com/s/files/1/0429/4751/0435/files/balance_sheet_2020.pdf
- https://cdn.shopify.com/s/files/1/0433/1595/3817/files/tifovuxomemejujasipu.pdf
- https://cdn.shopify.com/s/files/1/0433/4272/5275/files/55244653511.pdf
- https://cdn.shopify.com/s/files/1/0430/5797/1362/files/39513394610.pdf
- https://cdn.shopify.com/s/files/1/0430/5158/1591/files/wulabitapomemu.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_off00016b05.bind1da28e91f2e96ed77a4c119121f15cca4648dc5e8092dc3830f53bf6bb7fe7f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16B05 | 4920 bytes |
font_01_sfnt_off00017bd3.binf69eb651810bc16d9422798a7ef66b7f7bb4054b9b2faabb3c177f40c48a61c7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17BD3 | 10088 bytes |
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