MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, suggests a lure related to job applications. The ML classifier also strongly indicated maliciousness. The primary IOC is the redirector URL used in the document.
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=entry+level+job+cover+letter+template
- http://files.nativetales.com/uploads/1/3/0/7/130775942/b90bae542e.pdf
- http://files.philipmartinsummers.com/uploads/1/3/1/4/131454373/buxalod.pdf
- http://files.desertmicro.net/uploads/1/3/0/8/130814226/bojemowe.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0437/9040/1687/files/sobaliju.pdf
- https://cdn.shopify.com/s/files/1/0434/5082/6905/files/sasimelonozu.pdf
- https://cdn.shopify.com/s/files/1/0430/5082/7929/files/jibafekoboze.pdf
- https://cdn.shopify.com/s/files/1/0430/3729/4754/files/42241138322.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vawis.pdf
- https://cdn.shopify.com/s/files/1/0432/1440/5793/files/wuvezogemik.pdf
- https://cdn.shopify.com/s/files/1/0429/8915/8554/files/lavubivud.pdf
- https://cdn.shopify.com/s/files/1/0429/4184/1575/files/68950076997.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34680977850.pdf
- https://cdn.shopify.com/s/files/1/0437/5520/8858/files/30513566132.pdf
- https://cdn.shopify.com/s/files/1/0430/6590/1210/files/baluvepesiwa.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_off000084c8.binb1aab15662d8e988fa80103058aeee587c8183b0775ba8ee0fc48bd6f394ee89 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x84C8 | 4976 bytes |
font_01_sfnt_off000095a9.binb6ccb4dd3118056d44a0de39294151ef3b05a2c88f809b36e4c9c415f959d716 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x95A9 | 10644 bytes |
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