MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a document body that appears to be a lure for job aptitude questions, combined with numerous embedded URLs. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure, specifically `ttraff.ru`. Another critical heuristic flags the PDF for containing a mass external PDF link farm, with `cdn.shopify.com` being a dominant host for these links. 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.ru/pify?keyword=wipro+aptitude+questions+and+answers+for+freshers+2020+pdf
- http://files.royal-artstore.com/uploads/1/3/0/8/130874207/suvipiwifelur.pdf
- http://files.impossiblefarmher.com/uploads/1/3/1/4/131410234/rinoxufu.pdf
- http://files.kendralsaunders.com/uploads/1/3/0/7/130775471/folipikuzutixo.pdf
- https://cdn.shopify.com/s/files/1/0428/9419/6902/files/jibenobuxome.pdf
- https://cdn.shopify.com/s/files/1/0435/8435/6507/files/2808038449.pdf
- https://cdn.shopify.com/s/files/1/0428/2118/9788/files/23371795726.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/69651331918.pdf
- https://cdn.shopify.com/s/files/1/0433/9915/1768/files/fumalojugagobavo.pdf
- https://cdn.shopify.com/s/files/1/0431/7026/7300/files/2750406587.pdf
- https://cdn.shopify.com/s/files/1/0431/0849/9618/files/pelebu.pdf
- https://cdn.shopify.com/s/files/1/0432/8351/3494/files/64761855058.pdf
- https://cdn.shopify.com/s/files/1/0432/9888/1704/files/dubozegututumevodediril.pdf
- https://cdn.shopify.com/s/files/1/0437/3161/5909/files/35727816955.pdf
- https://cdn.shopify.com/s/files/1/0430/5525/1605/files/burafexudubatakomev.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/
- https://cdn.shopify.com/s/f
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007fef.bin8fae44bf610c88500371fab4b10c6109cee4188e542635311993d6b7e34bbb88 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7FEF | 5484 bytes |
font_01_sfnt_off0000929d.bin5b90f8ede2d2f01d1663c21dd9c047a3f1486eaa43f7afc7488bc8f00fcf1ec6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x929D | 10880 bytes |
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