Analysis
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max time kernel
488s -
max time network
601s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
17/01/2022, 19:00
Static task
static1
Behavioral task
behavioral1
Sample
msg.exe
Resource
win7-en-20211208
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
msg.exe
Resource
win10v2004-en-20220112
windows10-2004_x64
0 signatures
0 seconds
General
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Target
msg.exe
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Size
392KB
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MD5
d90d0f4d6dad402b5d025987030cc87c
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SHA1
fad66bdf5c5dc2c050cbc574832c6995dba086a0
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SHA256
1ffd6559d21470c40dcf9236da51e5823d7ad58c93502279871c3fe7718c901c
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SHA512
c2faeacfd588585633630ad710f443a72c7617c2d5e37dbfe43570e6ac5904e4b81eb682356a48a93bb794ef5e9d8ad0d673966d57798079b4de62ea61241024
Score
8/10
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 1476 igfxCUIService.exe -
Loads dropped DLL 2 IoCs
pid Process 740 msg.exe 740 msg.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run reg.exe Set value (str) \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run\igfxCUIService = "C:\\ProgramData\\SystemData\\igfxCUIService.exe" reg.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry key 1 TTPs 1 IoCs
pid Process 1100 reg.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 796 powershell.exe 1936 powershell.exe 776 powershell.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 796 powershell.exe Token: SeDebugPrivilege 1936 powershell.exe Token: SeIncreaseQuotaPrivilege 1748 WMIC.exe Token: SeSecurityPrivilege 1748 WMIC.exe Token: SeTakeOwnershipPrivilege 1748 WMIC.exe Token: SeLoadDriverPrivilege 1748 WMIC.exe Token: SeSystemProfilePrivilege 1748 WMIC.exe Token: SeSystemtimePrivilege 1748 WMIC.exe Token: SeProfSingleProcessPrivilege 1748 WMIC.exe Token: SeIncBasePriorityPrivilege 1748 WMIC.exe Token: SeCreatePagefilePrivilege 1748 WMIC.exe Token: SeBackupPrivilege 1748 WMIC.exe Token: SeRestorePrivilege 1748 WMIC.exe Token: SeShutdownPrivilege 1748 WMIC.exe Token: SeDebugPrivilege 1748 WMIC.exe Token: SeSystemEnvironmentPrivilege 1748 WMIC.exe Token: SeRemoteShutdownPrivilege 1748 WMIC.exe Token: SeUndockPrivilege 1748 WMIC.exe Token: SeManageVolumePrivilege 1748 WMIC.exe Token: 33 1748 WMIC.exe Token: 34 1748 WMIC.exe Token: 35 1748 WMIC.exe Token: SeIncreaseQuotaPrivilege 1748 WMIC.exe Token: SeSecurityPrivilege 1748 WMIC.exe Token: SeTakeOwnershipPrivilege 1748 WMIC.exe Token: SeLoadDriverPrivilege 1748 WMIC.exe Token: SeSystemProfilePrivilege 1748 WMIC.exe Token: SeSystemtimePrivilege 1748 WMIC.exe Token: SeProfSingleProcessPrivilege 1748 WMIC.exe Token: SeIncBasePriorityPrivilege 1748 WMIC.exe Token: SeCreatePagefilePrivilege 1748 WMIC.exe Token: SeBackupPrivilege 1748 WMIC.exe Token: SeRestorePrivilege 1748 WMIC.exe Token: SeShutdownPrivilege 1748 WMIC.exe Token: SeDebugPrivilege 1748 WMIC.exe Token: SeSystemEnvironmentPrivilege 1748 WMIC.exe Token: SeRemoteShutdownPrivilege 1748 WMIC.exe Token: SeUndockPrivilege 1748 WMIC.exe Token: SeManageVolumePrivilege 1748 WMIC.exe Token: 33 1748 WMIC.exe Token: 34 1748 WMIC.exe Token: 35 1748 WMIC.exe Token: SeDebugPrivilege 776 powershell.exe Token: SeIncreaseQuotaPrivilege 612 WMIC.exe Token: SeSecurityPrivilege 612 WMIC.exe Token: SeTakeOwnershipPrivilege 612 WMIC.exe Token: SeLoadDriverPrivilege 612 WMIC.exe Token: SeSystemProfilePrivilege 612 WMIC.exe Token: SeSystemtimePrivilege 612 WMIC.exe Token: SeProfSingleProcessPrivilege 612 WMIC.exe Token: SeIncBasePriorityPrivilege 612 WMIC.exe Token: SeCreatePagefilePrivilege 612 WMIC.exe Token: SeBackupPrivilege 612 WMIC.exe Token: SeRestorePrivilege 612 WMIC.exe Token: SeShutdownPrivilege 612 WMIC.exe Token: SeDebugPrivilege 612 WMIC.exe Token: SeSystemEnvironmentPrivilege 612 WMIC.exe Token: SeRemoteShutdownPrivilege 612 WMIC.exe Token: SeUndockPrivilege 612 WMIC.exe Token: SeManageVolumePrivilege 612 WMIC.exe Token: 33 612 WMIC.exe Token: 34 612 WMIC.exe Token: 35 612 WMIC.exe Token: SeIncreaseQuotaPrivilege 612 WMIC.exe -
Suspicious use of WriteProcessMemory 48 IoCs
description pid Process procid_target PID 740 wrote to memory of 796 740 msg.exe 29 PID 740 wrote to memory of 796 740 msg.exe 29 PID 740 wrote to memory of 796 740 msg.exe 29 PID 740 wrote to memory of 796 740 msg.exe 29 PID 740 wrote to memory of 1476 740 msg.exe 31 PID 740 wrote to memory of 1476 740 msg.exe 31 PID 740 wrote to memory of 1476 740 msg.exe 31 PID 740 wrote to memory of 1476 740 msg.exe 31 PID 1476 wrote to memory of 1936 1476 igfxCUIService.exe 32 PID 1476 wrote to memory of 1936 1476 igfxCUIService.exe 32 PID 1476 wrote to memory of 1936 1476 igfxCUIService.exe 32 PID 1476 wrote to memory of 1936 1476 igfxCUIService.exe 32 PID 1936 wrote to memory of 916 1936 powershell.exe 34 PID 1936 wrote to memory of 916 1936 powershell.exe 34 PID 1936 wrote to memory of 916 1936 powershell.exe 34 PID 1936 wrote to memory of 916 1936 powershell.exe 34 PID 1936 wrote to memory of 1748 1936 powershell.exe 37 PID 1936 wrote to memory of 1748 1936 powershell.exe 37 PID 1936 wrote to memory of 1748 1936 powershell.exe 37 PID 1936 wrote to memory of 1748 1936 powershell.exe 37 PID 1476 wrote to memory of 776 1476 igfxCUIService.exe 38 PID 1476 wrote to memory of 776 1476 igfxCUIService.exe 38 PID 1476 wrote to memory of 776 1476 igfxCUIService.exe 38 PID 1476 wrote to memory of 776 1476 igfxCUIService.exe 38 PID 1476 wrote to memory of 2008 1476 igfxCUIService.exe 40 PID 1476 wrote to memory of 2008 1476 igfxCUIService.exe 40 PID 1476 wrote to memory of 2008 1476 igfxCUIService.exe 40 PID 1476 wrote to memory of 2008 1476 igfxCUIService.exe 40 PID 2008 wrote to memory of 612 2008 cmd.exe 42 PID 2008 wrote to memory of 612 2008 cmd.exe 42 PID 2008 wrote to memory of 612 2008 cmd.exe 42 PID 2008 wrote to memory of 612 2008 cmd.exe 42 PID 1476 wrote to memory of 960 1476 igfxCUIService.exe 43 PID 1476 wrote to memory of 960 1476 igfxCUIService.exe 43 PID 1476 wrote to memory of 960 1476 igfxCUIService.exe 43 PID 1476 wrote to memory of 960 1476 igfxCUIService.exe 43 PID 960 wrote to memory of 544 960 cmd.exe 45 PID 960 wrote to memory of 544 960 cmd.exe 45 PID 960 wrote to memory of 544 960 cmd.exe 45 PID 960 wrote to memory of 544 960 cmd.exe 45 PID 1476 wrote to memory of 1876 1476 igfxCUIService.exe 46 PID 1476 wrote to memory of 1876 1476 igfxCUIService.exe 46 PID 1476 wrote to memory of 1876 1476 igfxCUIService.exe 46 PID 1476 wrote to memory of 1876 1476 igfxCUIService.exe 46 PID 1876 wrote to memory of 1100 1876 cmd.exe 48 PID 1876 wrote to memory of 1100 1876 cmd.exe 48 PID 1876 wrote to memory of 1100 1876 cmd.exe 48 PID 1876 wrote to memory of 1100 1876 cmd.exe 48
Processes
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C:\Users\Admin\AppData\Local\Temp\msg.exe"C:\Users\Admin\AppData\Local\Temp\msg.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:740 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" copy 'C:\Users\Admin\AppData\Local\Temp\msg.exe' 'C:\ProgramData\SystemData\igfxCUIService.exe'2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:796
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C:\ProgramData\SystemData\igfxCUIService.exe"C:\ProgramData\SystemData\igfxCUIService.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1476 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" getmac | Out-File -Encoding 'Default' 'C:\ProgramData\SystemData\temps1.txt' ; wmic path win32_physicalmedia get SerialNumber | Out-File -Encoding 'Default' 'C:\ProgramData\SystemData\temps2.txt'3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1936 -
C:\Windows\SysWOW64\getmac.exe"C:\Windows\system32\getmac.exe"4⤵PID:916
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C:\Windows\SysWOW64\Wbem\WMIC.exe"C:\Windows\System32\Wbem\WMIC.exe" path win32_physicalmedia get SerialNumber4⤵
- Suspicious use of AdjustPrivilegeToken
PID:1748
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" $env:username | Out-File -Encoding 'Default' 'C:\ProgramData\SystemData\tempu.txt'3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:776
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c wmic OS get Caption, CSDVersion, OSArchitecture, Version / value > "C:\ProgramData\SystemData\tempo1.txt" && type "C:\ProgramData\SystemData\tempo1.txt" > "C:\ProgramData\SystemData\tempo2.txt"3⤵
- Suspicious use of WriteProcessMemory
PID:2008 -
C:\Windows\SysWOW64\Wbem\WMIC.exewmic OS get Caption, CSDVersion, OSArchitecture, Version / value4⤵
- Suspicious use of AdjustPrivilegeToken
PID:612
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c wmic nicconfig where 'IPEnabled = True' get ipaddress > "C:\ProgramData\SystemData\tempi1.txt" && type "C:\ProgramData\SystemData\tempi1.txt" > "C:\ProgramData\SystemData\tempi2.txt"3⤵
- Suspicious use of WriteProcessMemory
PID:960 -
C:\Windows\SysWOW64\Wbem\WMIC.exewmic nicconfig where 'IPEnabled = True' get ipaddress4⤵PID:544
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /V igfxCUIService /t REG_SZ /D "C:\ProgramData\SystemData\igfxCUIService.exe" /F3⤵
- Suspicious use of WriteProcessMemory
PID:1876 -
C:\Windows\SysWOW64\reg.exeREG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /V igfxCUIService /t REG_SZ /D "C:\ProgramData\SystemData\igfxCUIService.exe" /F4⤵
- Adds Run key to start application
- Modifies registry key
PID:1100
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