MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded links, with the primary one leading to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'hvac maintenance procedure pdf' and the malicious URL, suggesting a lure. The presence of a mass external PDF link farm further indicates a malicious intent to redirect users to potentially harmful content.
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=hvac%20maintenance%20procedure%20pdf
- http://mikega.tricountypullersinc.com/uploads/1/3/0/8/130814297/womafose-safid-zorerutonadadob-susetojitoro.pdf
- http://babijo.dappledblue.com/uploads/1/3/0/8/130874222/fedamupenuv.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0428/7453/6103/files/66899968402.pdf
- https://cdn.shopify.com/s/files/1/0439/0957/8904/files/vofopejomiparukata.pdf
- https://cdn.shopify.com/s/files/1/0437/5078/5173/files/cetoacidosis_diabetica_concepto.pdf
- https://cdn.shopify.com/s/files/1/0434/1448/7190/files/vizifasigezuro.pdf
- https://cdn.shopify.com/s/files/1/0431/3550/0439/files/85083375991.pdf
- https://cdn.shopify.com/s/files/1/0429/0609/1687/files/pavivizubasi.pdf
- https://cdn.shopify.com/s/files/1/0430/3070/8385/files/82578283048.pdf
- https://cdn.shopify.com/s/files/1/0429/9970/9855/files/vunegosizedo.pdf
- https://cdn.shopify.com/s/files/1/0435/3982/4799/files/wedudopure.pdf
- https://cdn.shopify.com/s/files/1/0431/9032/1313/files/98138114547.pdf
- https://cdn.shopify.com/s/files/1/0437/9744/6816/files/nidusokoxig.pdf
- https://cdn.shopify.com/s/files/1/0433/3764/6245/files/76294160848.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_off00007956.bine02d60ac15a1620c960967865fa9e6f83ad7d0a0fe071c42a5e7f3e5265cc911 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7956 | 5112 bytes |
font_01_sfnt_off00008aa1.bina36043590e79035563bcb886e8f5670af2602b8cb5670aaf9e412a2b225f86f5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8AA1 | 10200 bytes |
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