- First seen
- Last seen
THREAT SIGNALMedium-low
Read alongside the verdict
Indicator overview
INDICATOR PROFILEThe VirusSign analysis is supported by the detection, confidence, classification and relationship signals available for this indicator.
- SHA256
83ff6b2eca72cf431fb299b1bd3c9f24830d614880736d696300db4e216aa019- SHA1
155620aa07f58340e1ce8c6b6785d8ceea348525- MD5
7d2f041b595741a4cf14bf6067bd3c17- Filename
- 83ff6b2e_dlr.arm64.bin
- File type
- elf
- MIME
- application/x-elf
- File size
- 627840
- TLSH
T1C0D47C5EFE4E3C83D2DAE239DF4BC3A1A22BB1D0D263515335C1420C988BAE9CFA1555- SSDEEP
12288:+LFvZOvti3J867fndysR0w5EE56d9UPFpO:+VZJz7BRzMU9p
Connected context
Key findings
OBSERVED EVIDENCEAnalysis takeaway
Review the detections and related infrastructure.
Detection signal
Suspicious. A limited set of engine detections is present (5%).
Confidence signal
VirusSign confidence is elevated at 58%. Use it as supporting evidence together with detections, family and relationship context.
Analysis signals
OBSERVEDEngine detections5%
VirusSign confidence58%
Relationship context1 visible
Threat classificationdirtydecrypt
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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.
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FILEDOMAINIPURL
Visible connections
Related intelligence
Pivot across connected files and infrastructure with analysis signals and supporting context.
Dropped / child files
Files dropped, bundled, or created by the queried file.
1shown
0%
text
45 bytes
contains
Filename
509378ae_.comment.bin
File type
text
MIME
text/plain
Size
45
SHA1
808992a95563386cb3681b84850078a76ffb4b06
Analysis details
Severity: hightrojanarm64bitdebug-checkelfmirai
Freshness: Fresh · Last seen today.
- Detection rate
- 5%
- Threat type
- trojan
- Family
- dirtydecrypt
- Confidence
- 58%
- detection
- 5 · Engine detection rate; color may also reflect VirusSign confidence.
Overview
- SHA256
83ff6b2eca72cf431fb299b1bd3c9f24830d614880736d696300db4e216aa019- SHA1
155620aa07f58340e1ce8c6b6785d8ceea348525- MD5
7d2f041b595741a4cf14bf6067bd3c17- Filename
- 83ff6b2e_dlr.arm64.bin
- File type
- elf
- MIME
- application/x-elf
- File size
- 627840
- TLSH
T1C0D47C5EFE4E3C83D2DAE239DF4BC3A1A22BB1D0D263515335C1420C988BAE9CFA1555- SSDEEP
12288:+LFvZOvti3J867fndysR0w5EE56d9UPFpO:+VZJz7BRzMU9p- First seen
- 2026-11-15T07:11:43Z
- Last seen
- 2026-11-15T12:32:36Z
Key findings
A focused interpretation of the evidence, relationships and observation history that matter most.
Analysis takeaway
Review the detections and related infrastructure.
Detection signal
Suspicious. A limited set of engine detections is present (5%).
Confidence signal
VirusSign confidence is elevated at 58%. Use it as supporting evidence together with detections, family and relationship context.
Threat context
Classification includes type trojan and family dirtydecrypt.
Relationship context
1 related indicators are shown across 1 relationship group(s).
Observation timeline
2 timestamped observations are arranged from 2026-02-25 to 2026-11-15. These are observation or metadata times, not execution order.
Why this verdict
Review the reported detections, analysis confidence and supporting context.
The VirusSign analysis is supported by the detection, confidence, classification and relationship signals available for this indicator.
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 dirtydecrypt.
Last seen today.
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
- 83ff6b2e_dlr.arm64.bin
- File type
- elf
- MIME
- application/x-elf
- Size
- 627840
Observed behavior
selected detailsSelected behavioral observations and reported framework mappings.
View details · 5 shown
- Classification label
- May try to detect the virtual machine to hinder analysis (VM artifact strings found in memory)
- Sample and/or dropped files contains symbols with suspicious names
- Static ELF header machine description suggests that the sample might not execute correctly on this machine.
- URLs found in memory or binary data
5 shown
View MITRE ATT&CK details · 3 shown
- T1036 — Sample and/or dropped files symbols with suspicious namesTactics: TA0005
- T1497.001 — Static ELF header machine description suggests that the sample might not execute correctly on this machine.Tactics: TA0005 · TA0007
- T1518.001 — Uses the "uname" system call to query kernel version information (possible evasion)Tactics: TA0007