MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to a 'Wonderlic scholastic level exam' and the authoring application 'wkhtmltopdf', suggesting a lure to trick users into clicking the malicious link. The ML classifier also strongly indicated maliciousness.
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=wonderlic+scholastic+level+exam
- http://files.blackandpetrichor.com/uploads/1/3/1/8/131872021/d428aa125.pdf
- http://files.michelleaoates.com/uploads/1/3/0/7/130739542/bdfc3e21bb.pdf
- http://files.susanstandfield.com/uploads/1/3/1/4/131408537/9efd7c8b1c.pdf
- http://files.pixiedustexpert.com/uploads/1/3/1/4/131453565/xunodasev-wijunaze-juzuzutep-vamividip.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/9463/8749/files/welamuwupuwaxoz.pdf
- https://cdn.shopify.com/s/files/1/0434/2258/0886/files/28908461844.pdf
- https://cdn.shopify.com/s/files/1/0429/2709/5967/files/komofa.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jufozigazagapuji.pdf
- https://cdn.shopify.com/s/files/1/0434/5744/6038/files/11283368825.pdf
- https://cdn.shopify.com/s/files/1/0437/5255/4657/files/juvizon.pdf
- https://cdn.shopify.com/s/files/1/0430/0505/1029/files/90102255169.pdf
- https://cdn.shopify.com/s/files/1/0439/4637/7374/files/77025314381.pdf
- https://cdn.shopify.com/s/files/1/0433/5537/3720/files/8446104366.pdf
- https://cdn.shopify.com/s/files/1/0430/8677/4436/files/xewonugezixifuxazoxejufi.pdf
- https://cdn.shopify.com/s/files/1/0437/1021/8391/files/61737509966.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/41758367329.pdf
- https://cdn.shopify.com/s/files/1/0433/9240/1573/files/dobevedupazubutig.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_off000060d5.bina289d5be8b71f89a39d60ab2f7b26aa437bc47f849ac55a35a6809f5aab2f9ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60D5 | 5320 bytes |
font_01_sfnt_off000072d1.bin309563521b1e4f47993ad5d36419cafa76f818a2adad63c17b123fec83a1a91e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72D1 | 9984 bytes |
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