- First seen
- Last seen
THREAT SIGNALMedium-low
Read alongside the verdict
Indicator overview
INDICATOR PROFILEVirusSign reports high analysis confidence alongside a low or unreported engine detection rate. These are different measures; review the supporting classification and relationships.
- SHA256
ea64a035529c82a269eeff00bf46dc5b769faa1b7a94db7da2f8f1a6c83a6beb- SHA1
94a5ff7b2b84d400871bc5a4f99dd854e3ce4b9c- MD5
ee66bb5427abf6101711a11859f46006- Filename
- ntb.armv4.elf
- File type
- elf
- MIME
- application/x-elf
- File size
- 190205
- Filename variants
- 3 reported
- TLSH
T1E50422C588967981B5F6157BB0873344F5AA4B24DDE737530E01329CB28072FF2E6EA9- SSDEEP
3072:KyEKUmFDfPo3N2lxGEfHyd9edLqg3QLMyZn+mCz4w8DbNphhEkoQ:KbVkTaYlx5Hy3eYYSf+mw41hEtQ
Connected context
Key findings
OBSERVED EVIDENCEAnalysis takeaway
High-confidence evidence. Related indicators in this report: 1. Review the supporting evidence before taking action.
Detection signal
Suspicious. A limited set of engine detections is present (14%).
Confidence signal
VirusSign reports 84% confidence. Review this alongside engine detections and relationship evidence.
Analysis signals
OBSERVEDEngine detections14%
VirusSign confidence84%
Relationship context1 visible
Threat classificationmirai
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Graph filters
Saved investigations
Compare when indicators were first seen, last seen and observed. Switch to Lifecycle to connect events for the same IOC.
Commonalities
RELATIONSHIP CONSTELLATION
No observations in this view
Available evidence appears in the other investigation lenses.
SELECT A NODE TO EXPLORE
FILEDOMAINIPURL
Visible connections
Related intelligence
Pivot across connected files and infrastructure with analysis signals and supporting context.
Related IPs
Network IPs associated with this indicator.
1shown
Analysis details
Severity: hightrojandebug-checkarmelfmirai
Freshness: Fresh · Last seen 2 days ago.
- Detection rate
- 14%
- Threat type
- trojan
- Family
- mirai
- Confidence
- 84%
- confidence
- 84 · VirusSign confidence; engine detections are reported separately.
Overview
- SHA256
ea64a035529c82a269eeff00bf46dc5b769faa1b7a94db7da2f8f1a6c83a6beb- SHA1
94a5ff7b2b84d400871bc5a4f99dd854e3ce4b9c- MD5
ee66bb5427abf6101711a11859f46006- Filename
- ntb.armv4.elf
- File type
- elf
- MIME
- application/x-elf
- File size
- 190205
- TLSH
T1E50422C588967981B5F6157BB0873344F5AA4B24DDE737530E01329CB28072FF2E6EA9- SSDEEP
3072:KyEKUmFDfPo3N2lxGEfHyd9edLqg3QLMyZn+mCz4w8DbNphhEkoQ:KbVkTaYlx5Hy3eYYSf+mw41hEtQ- First seen
- 2026-11-08T17:03:49Z
- Last seen
- 2026-11-08T22:30:59Z
- Filename variants
- 3 reported
Key findings
A focused interpretation of the evidence, relationships and observation history that matter most.
Analysis takeaway
High-confidence evidence. Related indicators in this report: 1. Review the supporting evidence before taking action.
Detection signal
Suspicious. A limited set of engine detections is present (14%).
Confidence signal
VirusSign reports 84% confidence. Review this alongside engine detections and relationship evidence.
Threat context
Classification includes type trojan and family mirai.
Relationship context
1 related indicators are shown across 1 relationship group(s).
Observation timeline
2 timestamped observations are arranged from 2021-02-13 to 2026-11-08. These are observation or metadata times, not execution order.
Why this verdict
Review the reported detections, analysis confidence and supporting context.
VirusSign reports high analysis confidence alongside a low or unreported engine detection rate. These are different measures; review the supporting classification and relationships.
Reported engine detection rate. A low rate alone does not establish that the indicator is benign.
VirusSign analysis confidence; separate from detection rate and actor-association confidence.
1 relationship group(s) provide pivot and infrastructure context.
Classification context: type trojan, family mirai.
Last seen 2 days ago.
Signals reflect the intelligence returned in this report. Missing values mean not reported, not zero. Related indicators are investigation leads, not proof of shared malicious activity.
File profile
summarySelected file intelligence summary.
- Filename
- ntb.armv4.elf
- File type
- elf
- MIME
- application/x-elf
- Size
- 190205
Observed behavior
selected detailsSelected behavioral observations and reported framework mappings.
View details · 5 shown
- All HTTP servers contacted by the sample do not answer. The sample is likely an old dropper which does no longer work.
- Classification label
- Connects to IPs without corresponding DNS lookups
- ELF contains segments with high entropy indicating compressed/encrypted content
- Executes commands using a shell command-line interpreter
5 shown
View MITRE ATT&CK details · 5 shown
- T1027 — ELF contains segments with high entropy indicating compressed/encrypted contentTactics: TA0005
- T1064 — Executes commands using a shell command-line interpreterTactics: TA0002 · TA0005
- T1543.002 — Executes the "systemctl" command used for controlling the systemd system and service managerTactics: TA0003 · TA0004
- T1027.002 — Sample contains only a LOAD segment without any section mappingsTactics: TA0005
- T1497.001 — Static ELF header machine description suggests that the sample might not execute correctly on this machine.Tactics: TA0005 · TA0007
5 shown
Network activity
selected detailsSelected observations and details. Additional structured data are available through API and data access.
Network activity1
TCPports 80
- 1 outbound connections observed
- 0 domains, 1 IPs, 0 URLs
- Common ports: 80
- Protocols: TCP
View details · 1 shown
- IP
- 169.254.169.254
- Port
- 80
- Protocol
- TCP