MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains numerous embedded links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Cisa exam format 2018', suggesting a lure. The presence of a link farm further indicates an attempt to drive traffic to external sites, likely for malicious purposes such as phishing or malware delivery.
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/pify?keyword=cisa+exam+format+2018
- http://files.omhathayoga.com/uploads/1/3/1/3/131398461/1255d3ee5b7fe.pdf
- http://files.maddartphotography.com/uploads/1/3/0/9/130969220/9c40fc424441.pdf
- http://files.yranchcattle.com/uploads/1/3/0/7/130775109/8f5c82ca.pdf
- https://cdn.shopify.com/s/files/1/0431/9775/9652/files/tifanogalefidutafegobi.pdf
- https://cdn.shopify.com/s/files/1/0431/8153/9489/files/6318639352.pdf
- https://cdn.shopify.com/s/files/1/0439/1682/0648/files/12823462705.pdf
- https://cdn.shopify.com/s/files/1/0429/1405/4300/files/31880664128.pdf
- https://cdn.shopify.com/s/files/1/0430/3604/9571/files/vaxajila.pdf
- https://cdn.shopify.com/s/files/1/0430/4555/2277/files/93374765217.pdf
- https://cdn.shopify.com/s/files/1/0433/9800/4899/files/43740385213.pdf
- https://cdn.shopify.com/s/files/1/0435/2458/7674/files/50155302802.pdf
- https://cdn.shopify.com/s/files/1/0435/7111/8235/files/fonofuzafusim.pdf
- https://cdn.shopify.com/s/files/1/0435/7344/4767/files/gugulesoxipiviwugu.pdf
- https://cdn.shopify.com/s/files/1/0438/9850/3336/files/7913317138.pdf
- https://cdn.shopify.com/s/files/1/0432/8800/2710/files/41624987752.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_off00007bfb.bind00f6be431a8c680ab9d96d8b3275fc306fda92b4385ee087239e71c6ea438cd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7BFB | 5172 bytes |
font_01_sfnt_off00008d98.binfb55b2879722a8c782947a0511050f6e5f09ae86e9d0fd47f0c4754652948709 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D98 | 10116 bytes |
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