MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a significant number of embedded links, many pointing to external PDF files hosted on various domains, including a known malicious redirector. This behavior is indicative of a link farm or SEO manipulation tactic. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the presence of a malicious redirector URL and the sheer volume of links suggest an attempt to lure users to malicious infrastructure.
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=bundle+of+sticks+story+pdf
- http://gabeki.highlandmusicboosters.com/uploads/1/3/1/4/131406950/vupuxolukonal_gokijigupew.pdf
- http://files.cowbirdlab.org/uploads/1/3/1/3/131381681/5438381.pdf
- http://files.wyndancegoldens.com/uploads/1/3/0/7/130738637/poxuruwuno.pdf
- http://files.omargr.com/uploads/1/3/1/4/131437733/5c66ef648006a45.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/9046/0324/files/receptive_and_productive_skills_of_english_language.pdf
- https://cdn.shopify.com/s/files/1/0429/6949/7753/files/46551600597.pdf
- https://cdn.shopify.com/s/files/1/0427/6987/5111/files/15617863212.pdf
- https://cdn.shopify.com/s/files/1/0432/2243/3953/files/vobajokufuzekivimeso.pdf
- https://cdn.shopify.com/s/files/1/0428/1594/6911/files/xofoguxewanut.pdf
- https://cdn.shopify.com/s/files/1/0432/9262/2998/files/11874957256.pdf
- https://cdn.shopify.com/s/files/1/0438/8893/5067/files/nejuxogelegagi.pdf
- https://cdn.shopify.com/s/files/1/0427/7387/2807/files/51707768984.pdf
- https://cdn.shopify.com/s/files/1/0436/1627/2547/files/kavogi.pdf
- https://cdn.shopify.com/s/files/1/0434/3001/9229/files/didid.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_off000067a3.bin88e7e0a1b1403e6f55a3016b998c3e4076ba56728e1e32ef8fa33d6a9b8edf26 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x67A3 | 5152 bytes |
font_01_sfnt_off00007956.bine8a95f15c09ec54cfeee90072970f37fabb038c033fc2efb97d934d763c35cd1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7956 | 10304 bytes |
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