MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
This PDF document contains a large number of embedded links, many of which point to external resources. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure, specifically `https://ttraff.ru/pify?keyword=aircraft+structural+dynamics+pdf`. The document body itself is heavily obfuscated but contains references to the same URLs, suggesting a link farm or SEO poisoning tactic to drive traffic to malicious sites. The ML classifier also strongly flagged this PDF as malicious.
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=aircraft+structural+dynamics+pdf
- http://files.masasailing.org/uploads/1/3/0/8/130873921/904ca.pdf
- http://files.protectgladewatershed.com/uploads/1/3/2/3/132303312/xixojatexozufiz.pdf
- http://files.wesleymerced.org/uploads/1/3/1/1/131164358/b419f09c7.pdf
- http://files.karennirefugees.com/uploads/1/3/1/4/131437702/2359061.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kevaziretojigadogikoranab.pdf
- https://cdn.shopify.com/s/files/1/0433/6871/0300/files/18747913680.pdf
- https://cdn.shopify.com/s/files/1/0434/8149/7766/files/vidupimefud.pdf
- https://cdn.shopify.com/s/files/1/0437/7031/4903/files/93265135662.pdf
- https://cdn.shopify.com/s/files/1/0431/8140/8420/files/91943677159.pdf
- https://cdn.shopify.com/s/files/1/0431/9805/4558/files/37926044572.pdf
- https://cdn.shopify.com/s/files/1/0440/6706/1910/files/aether_mod_1._7_10.pdf
- https://cdn.shopify.com/s/files/1/0431/8127/7342/files/nuruwulebew.pdf
- https://cdn.shopify.com/s/files/1/0430/9860/3669/files/zofogevajusajikitudi.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_off00005657.bin94ba048d7291bf56baa51325c155f2a5b0ce57f76319957ae3c2e7d8db5c3f3e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5657 | 5392 bytes |
font_01_sfnt_off000068a4.bin6abe7a39e5555b16e244388399d8cdff8f2235ab4c495058ee1635c66cf505e9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68A4 | 10640 bytes |
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