- First seen
- Last seen
THREAT SIGNALHigh
Read alongside the verdict
Indicator overview
INDICATOR PROFILEEngine detections are elevated in this report. Review the reported confidence, classification and relationships alongside them.
- SHA256
b83619db0c099a08ab8d3362910f52d8ca4af2e8be1513001e5fc30d838e7c29- SHA1
8da206c47ccc2896cc5c011665d0c871598236b0- MD5
7148e0c58deaaebb055a6e3547e8f9af- Filename
- b83619db_z62nzjo6u.exe.bin
- File type
- peexe
- MIME
- application/vnd.microsoft.portable-executable
- File size
- 538857
- Compile time
- 2026-08-22T13:35:27Z
- PE platform
- x86 32-bit
- PE sections
- 5
Connected context
Key findings
OBSERVED EVIDENCEAnalysis takeaway
Elevated engine detections. Related indicators in this report: 1. Review the supporting evidence before taking action.
Detection signal
Malicious. Engine detections are elevated at 74%.
Confidence signal
VirusSign reports 100% confidence. Review this alongside engine detections and relationship evidence.
Analysis signals
OBSERVEDEngine detections74%
VirusSign confidence100%
Relationship context1 visible
Threat classificationremcos
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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.
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FILEDOMAINIPURL
Visible connections
Related intelligence
Pivot across connected files and infrastructure with analysis signals and supporting context.
Parent files
Files that may have delivered, loaded, or executed this indicator.
1shown
30%
high
text
718492 bytes
drops
Filename
5b420865_iddodbf.txt.bin
Family
valyria
Type
trojan
File type
text
MIME
text/plain
Analysis details
Severity: criticaltrojanfile-corruptedexefile-overlayremcosrat
Freshness: Fresh · Last seen today.
- Detection rate
- 74%
- Threat type
- trojan
- Family
- remcos
- Confidence
- 100%
- detection
- 74 · Engine detection rate; color may also reflect VirusSign confidence.
Overview
- SHA256
b83619db0c099a08ab8d3362910f52d8ca4af2e8be1513001e5fc30d838e7c29- SHA1
8da206c47ccc2896cc5c011665d0c871598236b0- MD5
7148e0c58deaaebb055a6e3547e8f9af- Filename
- b83619db_z62nzjo6u.exe.bin
- File type
- peexe
- MIME
- application/vnd.microsoft.portable-executable
- File size
- 538857
- Compile time
- 2026-08-22T13:35:27Z
- PE platform
- x86 32-bit
- PE sections
- 5
- TLSH
T128B4E142FAB1D07ED62295354832A6359D78392424598D77A3CB0F76DA30381EF3FEA1- SSDEEP
12288:ekqe7djFYPN2rxJGVVtyPTl2GqD+/TR+AcxJ1sxr+Zze:A+6gGVwlXqc+AcxJm4Zz- Richhash
b14c49c2ba398787abd44c594b15b345- First seen
- 2026-11-12T04:29:59Z
- Last seen
- 2026-11-14T03:22:43Z
Key findings
A focused interpretation of the evidence, relationships and observation history that matter most.
Analysis takeaway
Elevated engine detections. Related indicators in this report: 1. Review the supporting evidence before taking action.
Detection signal
Malicious. Engine detections are elevated at 74%.
Confidence signal
VirusSign reports 100% confidence. Review this alongside engine detections and relationship evidence.
Threat context
Classification includes type trojan and family remcos.
Relationship context
1 related indicators are shown across 1 relationship group(s).
Observation timeline
2 timestamped observations are arranged from 2026-08-22 to 2026-11-10. These are observation or metadata times, not execution order.
Why this verdict
Review the reported detections, analysis confidence and supporting context.
Engine detections are elevated in this report. Review the reported confidence, classification and relationships alongside them.
Reported engine detection rate, not the probability that this indicator is malicious.
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 remcos.
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
- b83619db_z62nzjo6u.exe.bin
- File type
- peexe
- MIME
- application/vnd.microsoft.portable-executable
- Size
- 538857
- Compile time
- 2026-08-22T13:35:27Z
- PE platform
- x86 32-bit
- Entry point
- 256996
- Sections
- 5
File structure
selected detailsSelected observations and details. Additional structured data are available through API and data access.
PE header1
platform x86 32-bit5 sections
- Platform: x86 32-bit
- Sections: 5
- Entry point: present
- Compile time: 2026-08-22T13:35:27Z
View details · 1 shown
- Platform
- x86 32-bit
- Entry point
- 256996
- Sections
- 5
- Compile time
- 2026-08-22T13:35:27Z
PE sections5
5 sections
- 5 PE sections
- Common permissions: r, rw, rx
- 5 unique section names
View details · 5 shown
- Name
- .text
- Virtual address
- 4096
- Virtual size
- 394903
- Raw size
- 395264
- Permissions
- rx
- Entropy
- 7.16
- Name
- .rdata
- Virtual address
- 401408
- Virtual size
- 100620
- Raw size
- 100864
- Permissions
- r
- Entropy
- 6.16
- Name
- .data
- Virtual address
- 503808
- Virtual size
- 44540
- Raw size
- 3584
- Permissions
- rw
- Entropy
- 4.49
- Name
- .rsrc
- Virtual address
- 548864
- Virtual size
- 18720
- Raw size
- 18944
- Permissions
- r
- Entropy
- 4.28
- Name
- .reloc
- Virtual address
- 569344
- Virtual size
- 17048
- Raw size
- 17408
- Permissions
- r
- Entropy
- 7.11
Behavior details
selected detailsSelected behavioral observations and reported framework mappings.
View details · 4 shown
- encode data using XOR
- encrypt data using RC4 PRGA
- enumerate PE sections
- reference analysis tools strings
View MITRE ATT&CK details · 1 shown
- T1027 — encode data using XORTactics: TA0005
View MBC details · 5 shown
- E1027.m02 — Encoding-Standard AlgorithmObjectives: OB0002 · OB0006
- B0046.001 — Enumerate PE SectionsObjectives: OB0007
- B0013.001 — Process detectionObjectives: OB0007
- C0027.009 — RC4Objectives: OC0005
- C0021.004 — RC4 PRGAObjectives: OC0005
5 shown