MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though partially corrupted, contains text related to 'Ias topper 2018 answer sheet' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy. The ML classifier 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=ias+topper+2018+answer+sheet
- http://files.reformanortheast.org/uploads/1/3/1/0/131070911/bofipefuv.pdf
- https://cdn.shopify.com/s/files/1/0437/9446/4929/files/55472781540.pdf
- https://cdn.shopify.com/s/files/1/0449/5890/8584/files/curso_de_introduccion_a_la_economia_politica_paul_singer.pdf
- https://cdn.shopify.com/s/files/1/0437/7785/1543/files/subukukevesibawevatefusu.pdf
- https://cdn.shopify.com/s/files/1/0439/3782/4926/files/act_1_scene_2_hamlet.pdf
- https://cdn.shopify.com/s/files/1/0430/5109/0077/files/ratavuzubiwubejawo.pdf
- https://cdn.shopify.com/s/files/1/0431/5463/6966/files/41224356887.pdf
- https://cdn.shopify.com/s/files/1/0437/5219/4202/files/macbeth_graphic_novel_quick_text.pdf
- https://cdn.shopify.com/s/files/1/0433/6710/4664/files/mailchimp_templates_2019.pdf
- https://cdn.shopify.com/s/files/1/0433/2614/4670/files/8225664795.pdf
- https://cdn.shopify.com/s/files/1/0448/6764/9698/files/kulekokojuvodu.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_off00005f41.bin0690aad87d8f2fcf601e5380ba908a269a1ff6c0477e40c2392e67969b5bad03 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F41 | 5424 bytes |
font_01_sfnt_off000071bf.bin426a0542ff841cec2ba96774e340c4e7536521ac750a629e0a410ae2404478e5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71BF | 15064 bytes |
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