MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a significant number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains the text 'core banking system pdf', suggesting a lure to trick users into clicking the malicious link. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed for malicious redirection.
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=core+banking+system+pdf
- http://files.bigyogaonline.com/uploads/1/3/0/7/130776049/jumawobazomafuw.pdf
- http://files.thatspeechlady.co.uk/uploads/1/3/1/0/131069781/xugexu.pdf
- http://nomob.walkaboutjesus.com/uploads/1/3/1/4/131438142/lenaforegowu.pdf
- http://files.committedcommunitymentors.org/uploads/1/3/1/8/131871730/02911e44baaa.pdf
- https://cdn.shopify.com/s/files/1/0428/0126/6851/files/10277363494.pdf
- https://cdn.shopify.com/s/files/1/0433/8073/6165/files/22727762340.pdf
- https://cdn.shopify.com/s/files/1/0432/8354/6267/files/56813231510.pdf
- https://cdn.shopify.com/s/files/1/0429/3804/0487/files/99923573613.pdf
- https://cdn.shopify.com/s/files/1/0432/6352/5026/files/bonixolexoxaridodoziw.pdf
- https://cdn.shopify.com/s/files/1/0431/7511/6964/files/kogorizedexavamovow.pdf
- https://cdn.shopify.com/s/files/1/0432/2240/1192/files/50917313807.pdf
- https://cdn.shopify.com/s/files/1/0433/1136/6309/files/32754859533.pdf
- https://cdn.shopify.com/s/files/1/0437/8741/9805/files/40446878200.pdf
- https://cdn.shopify.com/s/files/1/0431/6279/6186/files/1_mb_file_test.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_off000058be.binb19a66aa533edb6cc574403c29968d3f8d93034e51445dafaafc430e1c36adb9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x58BE | 5444 bytes |
font_01_sfnt_off00006b2e.bin9e3dd691a168e0ca7e500c46dfa88c9f5ab1efdc19d3bf7943ed39140522b21c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B2E | 9740 bytes |
font_02_sfnt_off00008c8d.bind1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8C8D | 4324 bytes |
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