Analysis
- max time kernel
93s - max time network
113s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
27/02/2024, 11:26
General
- Target SecuriteInfo.com.Variant.Strictor.285707.29718.exe
- Size 1.7MB
- Sample240227-nj2b1sfd96
- SHA256 56df66ed0f0b1af511e3b84ae5615a6712c4dad3c00dda2b4cdd10705d161178
Malware Config
Signatures
- Drops file in Drivers directory 2 IoCs
- Possible privilege escalation attempt 7 IoCs
- Sets file execution options in registry 2 TTPs 2 IoCs
- Checks computer location settings 2 TTPs 4 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 7 IoCs
- Modifies file permissions 1 TTPs 7 IoCs
- Drops file in Program Files directory 8 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Kills process with taskkill 3 IoCs
- Runs ping.exe 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 54 IoCs
- Suspicious use of AdjustPrivilegeToken 7 IoCs
- Suspicious use of WriteProcessMemory 62 IoCs
- Views/modifies file attributes 1 TTPs 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Strictor.285707.29718.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Strictor.285707.29718.exe"1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
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C:\Program Files\AIOC5\SecuriteInfo.com.Variant.Strictor.285707.29718.exe"C:\Program Files\AIOC5\SecuriteInfo.com.Variant.Strictor.285707.29718.exe" "/StartPath:C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Strictor.285707.29718.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\taskkill.exe"C:\Windows\System32\taskkill.exe" /F /IM Record.exe /T3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C ICACLS "C:\Program Files\AIOC5" /grant:r Everyone:(OI)(CI)(F)3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\icacls.exeICACLS "C:\Program Files\AIOC5" /grant:r Everyone:(OI)(CI)(F)4⤵
- Possible privilege escalation attempt
- Modifies file permissions
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F aioc*_offline.exe3⤵
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C:\Program Files\AIOC5\SecuriteInfo.com.Variant.Strictor.285707.29718.exe"C:\Program Files\AIOC5\SecuriteInfo.com.Variant.Strictor.285707.29718.exe" "/StartPath:C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Strictor.285707.29718.exe"3⤵
- Sets file execution options in registry
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\taskkill.exe"C:\Windows\System32\taskkill.exe" /F /IM Record.exe /T4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C ICACLS "C:\Program Files\AIOC5" /grant:r Everyone:(OI)(CI)(F)4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\icacls.exeICACLS "C:\Program Files\AIOC5" /grant:r Everyone:(OI)(CI)(F)5⤵
- Possible privilege escalation attempt
- Modifies file permissions
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F aioc*_offline.exe4⤵
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C:\Program Files\AIOC5\PrimaryScreen.exe"PrimaryScreen.exe" ScaleX4⤵
- Executes dropped EXE
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C:\Program Files\AIOC5\SecuriteInfo.com.Variant.Strictor.285707.29718.exe"C:\Program Files\AIOC5\SecuriteInfo.com.Variant.Strictor.285707.29718.exe" "/StartPath:C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Strictor.285707.29718.exe"4⤵
- Drops file in Drivers directory
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\taskkill.exe"C:\Windows\System32\taskkill.exe" /F /IM Record.exe /T5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C ICACLS "C:\Program Files\AIOC5" /grant:r Everyone:(OI)(CI)(F)5⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\icacls.exeICACLS "C:\Program Files\AIOC5" /grant:r Everyone:(OI)(CI)(F)6⤵
- Possible privilege escalation attempt
- Modifies file permissions
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C:\Program Files\AIOC5\PrimaryScreen.exe"PrimaryScreen.exe" ScaleX5⤵
- Executes dropped EXE
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F aioc*_offline.exe5⤵
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C:\Program Files\AIOC5\PrimaryScreen.exe"PrimaryScreen.exe" WorkingArea5⤵
- Executes dropped EXE
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C:\Program Files\AIOC5\PrimaryScreen.exe"PrimaryScreen.exe" desktop5⤵
- Executes dropped EXE
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C TAKEOWN /F "C:\Windows\system32\drivers\etc" /R /D Y5⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\takeown.exeTAKEOWN /F "C:\Windows\system32\drivers\etc" /R /D Y6⤵
- Possible privilege escalation attempt
- Modifies file permissions
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C ICACLS "C:\Windows\system32\drivers\etc" /grant:r Everyone:(OI)(CI)(F)5⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\icacls.exeICACLS "C:\Windows\system32\drivers\etc" /grant:r Everyone:(OI)(CI)(F)6⤵
- Possible privilege escalation attempt
- Modifies file permissions
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C TAKEOWN /F "C:\Windows\system32\drivers\etc\hosts"5⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\takeown.exeTAKEOWN /F "C:\Windows\system32\drivers\etc\hosts"6⤵
- Possible privilege escalation attempt
- Modifies file permissions
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C ICACLS "C:\Windows\system32\drivers\etc\hosts" /grant:r Everyone:(F)5⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\icacls.exeICACLS "C:\Windows\system32\drivers\etc\hosts" /grant:r Everyone:(F)6⤵
- Possible privilege escalation attempt
- Modifies file permissions
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C ATTRIB -R -H -S "C:\Windows\system32\drivers\etc\hosts" /S /D /L5⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\attrib.exeATTRIB -R -H -S "C:\Windows\system32\drivers\etc\hosts" /S /D /L6⤵
- Drops file in Drivers directory
- Views/modifies file attributes
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C:\Windows\SYSTEM32\CMD.exe"CMD" /C ping -n 2 -w 500 223.5.5.55⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\PING.EXEping -n 2 -w 500 223.5.5.56⤵
- Runs ping.exe
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Microsoft.VisualBasic.dll
Newtonsoft.Json.dll
PrimaryScreen.exe
SecuriteInfo.com.Variant.Strictor.285707.29718.exe
SecuriteInfo.com.Variant.Strictor.285707.29718.exe
SecuriteInfo.com.Variant.Strictor.285707.29718.exe.config
System.Deployment.dll
System.Xml.Linq.dll
PrimaryScreen.exe.log
SecuriteInfo.com.Variant.Strictor.285707.29718.exe.log
memory/1844-60-0x00007FF832910000-0x00007FF8333D1000-memory.dmp
memory/1844-52-0x00007FF832910000-0x00007FF8333D1000-memory.dmp
memory/2052-44-0x00007FF832910000-0x00007FF8333D1000-memory.dmp
memory/2052-29-0x00007FF832910000-0x00007FF8333D1000-memory.dmp
memory/2052-36-0x000000001BA60000-0x000000001BA70000-memory.dmp
memory/2516-45-0x000000001AFD0000-0x000000001AFE0000-memory.dmp
memory/2516-58-0x00007FF832910000-0x00007FF8333D1000-memory.dmp
memory/2516-61-0x000000001AFD0000-0x000000001AFE0000-memory.dmp
memory/2516-54-0x0000000021F40000-0x0000000021FCA000-memory.dmp
memory/2516-53-0x000000001AFD0000-0x000000001AFE0000-memory.dmp
memory/2516-43-0x00007FF832910000-0x00007FF8333D1000-memory.dmp
memory/2820-48-0x00007FF832910000-0x00007FF8333D1000-memory.dmp
memory/3268-39-0x00007FF832910000-0x00007FF8333D1000-memory.dmp
memory/3268-38-0x0000000000840000-0x0000000000848000-memory.dmp
memory/3268-41-0x00007FF832910000-0x00007FF8333D1000-memory.dmp
memory/4632-50-0x00007FF832910000-0x00007FF8333D1000-memory.dmp
memory/4632-59-0x00007FF832910000-0x00007FF8333D1000-memory.dmp
memory/4700-30-0x00007FF832910000-0x00007FF8333D1000-memory.dmp
memory/4700-19-0x000000001B980000-0x000000001BCD6000-memory.dmp
memory/4700-18-0x000000001B970000-0x000000001B980000-memory.dmp
memory/4700-17-0x00007FF832910000-0x00007FF8333D1000-memory.dmp
memory/4700-26-0x000000001C590000-0x000000001C716000-memory.dmp
memory/4944-0-0x00000000001A0000-0x000000000035A000-memory.dmp
memory/4944-16-0x00007FF832910000-0x00007FF8333D1000-memory.dmp
memory/4944-2-0x000000001B0D0000-0x000000001B0E0000-memory.dmp
memory/4944-1-0x00007FF832910000-0x00007FF8333D1000-memory.dmp