MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and contains numerous embedded URLs. One critical heuristic identified it as a PDF link farm, with many links pointing to external PDF files hosted on domains like cdn.shopify.com. Another critical heuristic indicates a link to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains text related to 'English malayalam dictionary app' and the URLs, suggesting a lure or redirection mechanism.
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=english+malayalam+dictionary+app
- http://zejafu.folsomepoxy.com/uploads/1/3/1/3/131398252/a1d65967.pdf
- http://files.citruscountyaudubon.org/uploads/1/3/2/8/132814050/niniresosogur.pdf
- https://cdn.shopify.com/s/files/1/0434/0485/3406/files/app_center_push_notifications_android.pdf
- https://cdn.shopify.com/s/files/1/0430/7822/1973/files/24490910629.pdf
- https://cdn.shopify.com/s/files/1/0432/2626/7816/files/80955173561.pdf
- https://cdn.shopify.com/s/files/1/0438/2926/4546/files/60997767205.pdf
- https://cdn.shopify.com/s/files/1/0432/4353/6552/files/86183025980.pdf
- https://cdn.shopify.com/s/files/1/0432/8649/5397/files/61727521881.pdf
- https://cdn.shopify.com/s/files/1/0429/7064/4631/files/55155708036.pdf
- https://cdn.shopify.com/s/files/1/0432/3033/1040/files/aadhar_download_open_password.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/80804151078.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_off00004da5.bin800a37729a7b898cae8e36582ac6693da4f9aac1e12614e7dddd92c8cc41978f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4DA5 | 5544 bytes |
font_01_sfnt_off00006052.bin311a5cb013b38f34c465917d178fd7e9ddefa4337120f290f8bf6008cdc2743f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6052 | 10188 bytes |
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