SHA1MediumSignal 88/100
65e3982e8a5eaa755bbebb2fb01ec2ea4c821c61
Location
First Seen
Apr 21, 2026
Last Seen
Apr 23, 2026
Found in 3 reports. Confidence: medium. · Confidence scores are heuristic. Verify before acting on results.
SHA-1 Hash
SHA-1 file hash associated with malicious samples.
MISP Category
Artifacts Dropped
Hash Algorithm
SHA1
Confidence
88%
Signal Score
88 / 100
IDS Rule
No
Threat Context
Tags
Feed Intelligence Summary
3 reports88% confidence
3
Source reports
88%
Confidence score
Category tags
file-hashindicatornabucurpeexeperuresearchedsouth americawindows
Activity Timeline
Apr 23Apr 23
Threat Activity Heatmap
· Peak: 2026-04-23LessMore
Mon
Wed
Fri
24h
0
Dormant
7d
0
Dormant
30d
0
Dormant
3mo
1
Minimal
Intelligence SummaryAI Generated
This Indicator of Compromise (IOC) represents a critical threat to organizational security, with a high severity score of 88.28. It is specifically identified as a SHA-1 hash linked directly to `Virus:Win32/Nabucur.A`, a known malware that typically functions as a backdoor or downloader. The presence of this hash within an environment strongly indicates a potential system compromise, paving the way for advanced persistent threats, data exfiltration, or further malware deployment, including ranso…
Threat ScoreHigh Risk
88
SIGNAL
Signal Score
88%
Confidence
3
Reports
First seenApr 21, 2026
Last seenApr 23, 2026
VirusTotal
Not checked
WHOIS
- description
- PE32 executable (GUI) Intel 80386, for MS Windows
Export & API
STIX 2.1 Bundle
CSV Export
Permalink
IOC Journey
mediumFirst detected 1 month ago · Last seen 1 month ago
Appeared in 3 threat reports