IOC Radar
SHA1MediumSignal 29/100

554ba1efea1a48ad77f0d29859e3c8a9ed30c9f0

First Seen
Apr 21, 2026
Last Seen
May 1, 2026
Apr 21
First Seen
55d ago
May 1
Last Seen
45d ago
3
Reports
source reports
29%
Confidence
medium
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
29%
Signal Score
29 / 100
IDS Rule
No
Threat Context
Tags

Feed Intelligence Summary

3 reports29% confidence
3
Source reports
29%
Confidence score
Category tags
file-hashindicatornabucurresearched

Activity Timeline

1 total obs
May 1May 1

Threat Activity Heatmap

· Peak: 2026-05-01
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24h
0
Dormant
7d
0
Dormant
30d
0
Dormant
3mo
1
Minimal
Intelligence SummaryAI Generated

This Indicator of Compromise (IOC), a SHA1 hash, is critically important as its presence within an organizational environment strongly suggests an active or past malware infection. Specifically, this hash has been associated with `Virus:Win32/Nabucur.A` and `W32.Virlock!inf`, both recognized as malicious programs. If encountered, these viruses can lead to significant system compromise, data corruption, and potentially facilitate further unauthorized access or malicious activities within the netw…

Threat ScoreLow Risk
29
SIGNAL
Signal Score
29%
Confidence
3
Reports
First seenApr 21, 2026
Last seenMay 1, 2026

VirusTotal

Not checked

WHOIS

description
SHA1 of 8944aabf309da6dc397301312a8a0b2a1b793675af7b75e0aef2f570f1375f80

Export & API

STIX 2.1 Bundle
CSV Export
Permalink

IOC Journey

medium
First detected 1 month ago · Last seen 1 month ago
Appeared in 3 threat reports