MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF was flagged for containing links to known malicious redirector infrastructure and a large number of external links, suggesting a link farm. The ML classifier also strongly indicated maliciousness. The embedded URL points to 'ttraff.com', a known redirector, which is likely used to obscure the final malicious destination. The document body contains garbled text but also includes the string 'string. format example java' and a URL that matches the one found in the heuristics, reinforcing the malicious link presence.
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=string.+format+example+java
- http://numidur.relentlessperformance.org/uploads/1/3/2/8/132814930/2187371.pdf
- http://files.nativitybloomingtonparish.org/uploads/1/3/1/6/131607093/2919008.pdf
- http://files.nbyouthvolleyballclub.com/uploads/1/3/1/3/131380569/6983542.pdf
- http://files.nanaimobuddhistmeditationgroup.org/uploads/1/3/1/4/131453543/fisonoba_wesosagemesiduz_felilefu.pdf
- https://cdn.shopify.com/s/files/1/0434/0409/9735/files/muganimame.pdf
- https://cdn.shopify.com/s/files/1/0432/0893/3540/files/zaxitolep.pdf
- https://cdn.shopify.com/s/files/1/0428/2292/6492/files/98577322406.pdf
- https://cdn.shopify.com/s/files/1/0430/0151/2090/files/54556870584.pdf
- https://cdn.shopify.com/s/files/1/0434/8333/2772/files/honeywell_pro_5000_install_manual.pdf
- https://cdn.shopify.com/s/files/1/0433/3977/6159/files/anthology_of_african_american_literature.pdf
- https://cdn.shopify.com/s/files/1/0427/7560/9510/files/rukikev.pdf
- https://cdn.shopify.com/s/files/1/0429/9345/1159/files/bayesian_data_analysis_3.pdf
- https://cdn.shopify.com/s/files/1/0438/2054/8253/files/vugusaranepoxuzu.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_off000143d5.binc555f6c31de9a29fc1c5c5d937f9d691967624c2f2ca277828d694885fef0fe3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x143D5 | 5380 bytes |
font_01_sfnt_off0001561f.bin173fe912eb219dac8b9ad2c52bc87864d50d5eb82510eb168e84414ee65110b5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1561F | 14116 bytes |
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