MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, with one specifically pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though obfuscated, contains the URL that is also present in the heuristics and IOCs, suggesting a lure to external content. No scripts were extracted, but the presence of numerous links points towards a phishing or SEO spam campaign.
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/pify?keyword=descriptive+text+worksheet
- http://files.jhslearningcommons.org/uploads/1/3/1/4/131408209/3489893.pdf
- http://files.ohsosweetoccasions.com/uploads/1/3/0/7/130739835/mifafadixek.pdf
- http://vuvuzuj.thegunshowplay.com/uploads/1/3/0/9/130969862/dutazujo.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/3772/0733/files/mabibuzim.pdf
- https://cdn.shopify.com/s/files/1/0432/5300/6494/files/92347612285.pdf
- https://cdn.shopify.com/s/files/1/0431/6574/5314/files/shiny_stone_pixelmon.pdf
- https://cdn.shopify.com/s/files/1/0433/0127/3750/files/lepowegivodit.pdf
- https://cdn.shopify.com/s/files/1/0431/1272/6677/files/sabator.pdf
- https://cdn.shopify.com/s/files/1/0434/3840/7845/files/adobe_acrobat_reader_could_not_open.pdf
- https://cdn.shopify.com/s/files/1/0435/0319/0181/files/64222357022.pdf
- https://cdn.shopify.com/s/files/1/0435/5257/1555/files/78294588617.pdf
- https://cdn.shopify.com/s/files/1/0440/5084/1750/files/98703122354.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mijafovaginidobu.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_off00005c46.bin1de0af76d1f3b1417b14a738047926e1dda3ba4be15af4c9d6836bc15c78342b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C46 | 5060 bytes |
font_01_sfnt_off00006d95.bin5d6d955bcd5a9b9a54d0f7178e591491b1e527f93e6fe37a5692492f827100be |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D95 | 10136 bytes |
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