MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One prominent link, 'https://ttraff.com/wb?keyword=multiple%20worksheet%20in%20excel%20definition', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting a lure to a malicious site. The ML classifier strongly supports the malicious nature of this PDF.
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/wb?keyword=multiple%20worksheet%20in%20excel%20definition
- http://rimog.virginiashowmasterscircuit.com/uploads/1/3/1/1/131164250/biralafakogom.pdf
- http://files.dwpguitars.com/uploads/1/3/1/4/131453136/e5d29.pdf
- http://files.draincareseptic.com/uploads/1/3/0/7/130739525/radunox.pdf
- https://cdn.shopify.com/s/files/1/0430/4257/0402/files/bizitufujarufelebanak.pdf
- https://cdn.shopify.com/s/files/1/0429/7555/9829/files/central_limit_theorem_examples_with_solutions.pdf
- https://cdn.shopify.com/s/files/1/0438/0291/9074/files/vaduxepisisajofak.pdf
- https://cdn.shopify.com/s/files/1/0430/9748/9572/files/malugonetuvogowixurope.pdf
- https://cdn.shopify.com/s/files/1/0435/8835/4207/files/41180951601.pdf
- https://cdn.shopify.com/s/files/1/0433/9066/4860/files/dozaf.pdf
- https://cdn.shopify.com/s/files/1/0439/5725/6350/files/sulowojutixewu.pdf
- https://cdn.shopify.com/s/files/1/0437/7870/3521/files/86236235579.pdf
- https://cdn.shopify.com/s/files/1/0431/3563/1514/files/16854657858.pdf
- https://cdn.shopify.com/s/files/1/0434/1596/1762/files/82638884448.pdf
- https://cdn.shopify.com/s/files/1/0439/1501/8392/files/waiting_for_godot_file.pdf
- https://cdn.shopify.com/s/files/1/0437/4292/0869/files/all_in_one_checker.pdf
- https://cdn.shopify.com/s/files/1/0435/2226/1143/files/soken.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_off00005a56.bin5acd4c7ac47dd1a3d1bac03645c767fdb857247a0e2f922eb7ef90f001e3336b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A56 | 5260 bytes |
font_01_sfnt_off00006c54.bin91faaac7c6067a5275a31c82b75f65132f0783638df224ec88ae0856c15daa07 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C54 | 9704 bytes |
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