MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure for a dictionary PDF download. The primary malicious URL identified is ttraff.ru, which is used in conjunction with a keyword search parameter, likely to appear as a legitimate search result. The presence of many Shopify links suggests an attempt to blend in with benign content.
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=cambridge+dictionary+of+american+idioms+pdf+download
- http://files.hellorichmond.org/uploads/1/3/1/6/131606901/sidukalonijo-jineporima.pdf
- http://files.gingerology3.com/uploads/1/3/1/3/131382942/wunoxofeduni.pdf
- http://files.hollyparkergourdart.com/uploads/1/3/1/4/131483149/gorobana_lajuwif_desuwomor.pdf
- https://cdn.shopify.com/s/files/1/0431/0709/0598/files/second_conditional_exercises_british_council.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/95181885481.pdf
- https://cdn.shopify.com/s/files/1/0430/6799/8359/files/bibefolonujis.pdf
- https://cdn.shopify.com/s/files/1/0429/5573/5203/files/pitixumodemupifugupu.pdf
- https://cdn.shopify.com/s/files/1/0435/5942/0063/files/escherichia_coli_scielo.pdf
- https://cdn.shopify.com/s/files/1/0437/7188/7767/files/44997375945.pdf
- https://cdn.shopify.com/s/files/1/0431/0378/1015/files/wamuvaxuxax.pdf
- https://cdn.shopify.com/s/files/1/0428/2544/9628/files/muvujuvanizujemix.pdf
- https://cdn.shopify.com/s/files/1/0431/0820/4704/files/bejopunegigotutirutujime.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_off00004b1d.bin4e5997d57b93fdfdef790af900f972474cdf1ab7278d940771d6054fa5aa94e5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4B1D | 12984 bytes |
font_01_sfnt_off000074d9.bin66d646371678ef2aa75e43ecd58dfb20a9d6d2e96cedb069ad487640a15c3cbd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74D9 | 5716 bytes |
font_02_sfnt_off0000884d.bin5fcd3aea8c5eab341c8a79ba29293ae111d289f0ae5d30dd84b6f716dd1dcd74 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x884D | 10428 bytes |
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