MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of external links, many of which point to WordPress-hosted PDFs, suggesting a link farm or SEO poisoning attempt. One prominent URL, https://ttraff.cc/wb?keyword=renal%20function%20test%20pdf, is identified as a malicious redirector. The document's content, though heavily obfuscated, includes text related to "Renal function test pdf", likely a lure to entice users to click the malicious link. No scripts were extracted from this sample.
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.cc/wb?keyword=renal%20function%20test%20pdf
- http://files.mariecharpentier.net/uploads/1/3/1/4/131483019/batipaxadas.pdf
- http://files.rootsoflove.ca/uploads/1/3/1/4/131437446/vemezogijo-fivizosefigif-vojibinepowig-fapurujefamol.pdf
- http://files.hartig.com/uploads/1/3/2/7/132710683/7804303.pdf
- http://files.withoutahitchboston.com/uploads/1/3/1/4/131409244/piguw.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://navepepefali.files.wordpress.com/2020/07/kexokixiti.pdf
- https://nanesufated.files.wordpress.com/2020/06/7486914515.pdf
- https://gijafodopaw.files.wordpress.com/2020/07/66169996390.pdf
- https://morixumudiba.files.wordpress.com/2020/07/55158375977.pdf
- https://lenezofim.files.wordpress.com/2020/06/10053606756.pdf
- https://jedawixi.files.wordpress.com/2020/06/mesejotawati.pdf
- https://cdn.shopify.com/s/files/1/0427/4801/8855/files/54483694809.pdf
- https://cdn.shopify.com/s/files/1/0428/2961/1171/files/wisaxotozelunuzilug.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89352644259.pdf
- https://cdn.shopify.com/s/files/1/0429/0458/4355/files/safotifazixivut.pdf
- https://cdn.shopify.com/s/files/1/0429/8987/9445/files/26564779907.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/suxuteregejo.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005bc8.binc4a8f33dbe4b6a2b46acc5d983ac27fe5c6c6ae75bf107ee583d0f9a5f368790 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5BC8 | 4944 bytes |
font_01_sfnt_off00006cab.binca95847db74ff335e403e61b2405bc14188a9caf44f219ac956bf95882434d94 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6CAB | 9872 bytes |
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