MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which are designed to appear as legitimate documents but lead to a link farm. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=new+periodic+table+song'. The ML classifier strongly indicated maliciousness. The document body, though heavily obfuscated, contains references to the redirector URL and other PDF files hosted on various domains, suggesting a coordinated effort to drive traffic to potentially harmful sites.
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=new+periodic+table+song
- http://files.buyunladylike.com/uploads/1/3/1/8/131871730/deniwekumabe_jezajix_sevibu.pdf
- http://dupovo.spikemclarrity.com/uploads/1/3/0/7/130738948/muxujerimimenoga.pdf
- http://files.jessedinkelphotography.com/uploads/1/3/1/4/131455543/6f5725393186039.pdf
- http://rulope.industri-motion.com/uploads/1/3/1/3/131380042/remupekiduvidok.pdf
- https://cdn.shopify.com/s/files/1/0429/8830/6586/files/cluster_random_sampling_method.pdf
- https://cdn.shopify.com/s/files/1/0432/6785/0390/files/cases_in_public_relations_strategy.pdf
- https://cdn.shopify.com/s/files/1/0432/5857/7046/files/90718854371.pdf
- https://cdn.shopify.com/s/files/1/0432/7538/7043/files/pejifurobumuj.pdf
- https://cdn.shopify.com/s/files/1/0431/7652/5988/files/orlicky_s_material_requirements_planning_3_e.pdf
- https://cdn.shopify.com/s/files/1/0434/4024/2840/files/fuzalok.pdf
- https://cdn.shopify.com/s/files/1/0430/6799/8362/files/73487654671.pdf
- https://cdn.shopify.com/s/files/1/0429/8244/1113/files/fepezononurupeziwe.pdf
- https://cdn.shopify.com/s/files/1/0437/8905/8206/files/goxiwubafugunugufi.pdf
- https://cdn.shopify.com/s/files/1/0433/0163/4201/files/43895432206.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_off00006720.bin31afeea4177fa57728ce003f13b819f21c54dff4f04defc273a8f275317803c8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6720 | 5444 bytes |
font_01_sfnt_off000079c0.binf9a46e20164b44f24c41b56ebeb00c9a46efd1ebee0019007bcb5e04db01904f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79C0 | 10008 bytes |
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