Analysis
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max time kernel
365s -
max time network
364s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
23/01/2022, 16:46
Static task
static1
Behavioral task
behavioral1
Sample
msg.exe
Resource
win7-en-20211208
windows7_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
Malware Config
Signatures
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Detection for the linux version of Sysjoker cross-platform backdoor 4 IoCs
resource yara_rule behavioral1/files/0x00060000000125b9-62.dat family_linux_sysjoker behavioral1/files/0x00060000000125b9-63.dat family_linux_sysjoker behavioral1/files/0x00060000000125b9-64.dat family_linux_sysjoker behavioral1/files/0x00060000000125b9-65.dat family_linux_sysjoker -
Detection for the mac version of Sysjoker cross-platform backdoor 4 IoCs
resource yara_rule behavioral1/files/0x00060000000125b9-62.dat family_macos_sysjoker behavioral1/files/0x00060000000125b9-63.dat family_macos_sysjoker behavioral1/files/0x00060000000125b9-64.dat family_macos_sysjoker behavioral1/files/0x00060000000125b9-65.dat family_macos_sysjoker -
Detection for the windows version of Sysjoker cross-platform backdoor 4 IoCs
resource yara_rule behavioral1/files/0x00060000000125b9-62.dat family_sysjoker behavioral1/files/0x00060000000125b9-63.dat family_sysjoker behavioral1/files/0x00060000000125b9-64.dat family_sysjoker behavioral1/files/0x00060000000125b9-65.dat family_sysjoker -
Executes dropped EXE 1 IoCs
pid Process 1920 igfxCUIService.exe -
Loads dropped DLL 2 IoCs
pid Process 1756 msg.exe 1756 msg.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1396 powershell.exe 972 powershell.exe 1564 powershell.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 1396 powershell.exe Token: SeDebugPrivilege 972 powershell.exe Token: SeIncreaseQuotaPrivilege 956 WMIC.exe Token: SeSecurityPrivilege 956 WMIC.exe Token: SeTakeOwnershipPrivilege 956 WMIC.exe Token: SeLoadDriverPrivilege 956 WMIC.exe Token: SeSystemProfilePrivilege 956 WMIC.exe Token: SeSystemtimePrivilege 956 WMIC.exe Token: SeProfSingleProcessPrivilege 956 WMIC.exe Token: SeIncBasePriorityPrivilege 956 WMIC.exe Token: SeCreatePagefilePrivilege 956 WMIC.exe Token: SeBackupPrivilege 956 WMIC.exe Token: SeRestorePrivilege 956 WMIC.exe Token: SeShutdownPrivilege 956 WMIC.exe Token: SeDebugPrivilege 956 WMIC.exe Token: SeSystemEnvironmentPrivilege 956 WMIC.exe Token: SeRemoteShutdownPrivilege 956 WMIC.exe Token: SeUndockPrivilege 956 WMIC.exe Token: SeManageVolumePrivilege 956 WMIC.exe Token: 33 956 WMIC.exe Token: 34 956 WMIC.exe Token: 35 956 WMIC.exe Token: SeIncreaseQuotaPrivilege 956 WMIC.exe Token: SeSecurityPrivilege 956 WMIC.exe Token: SeTakeOwnershipPrivilege 956 WMIC.exe Token: SeLoadDriverPrivilege 956 WMIC.exe Token: SeSystemProfilePrivilege 956 WMIC.exe Token: SeSystemtimePrivilege 956 WMIC.exe Token: SeProfSingleProcessPrivilege 956 WMIC.exe Token: SeIncBasePriorityPrivilege 956 WMIC.exe Token: SeCreatePagefilePrivilege 956 WMIC.exe Token: SeBackupPrivilege 956 WMIC.exe Token: SeRestorePrivilege 956 WMIC.exe Token: SeShutdownPrivilege 956 WMIC.exe Token: SeDebugPrivilege 956 WMIC.exe Token: SeSystemEnvironmentPrivilege 956 WMIC.exe Token: SeRemoteShutdownPrivilege 956 WMIC.exe Token: SeUndockPrivilege 956 WMIC.exe Token: SeManageVolumePrivilege 956 WMIC.exe Token: 33 956 WMIC.exe Token: 34 956 WMIC.exe Token: 35 956 WMIC.exe Token: SeDebugPrivilege 1564 powershell.exe Token: SeIncreaseQuotaPrivilege 980 WMIC.exe Token: SeSecurityPrivilege 980 WMIC.exe Token: SeTakeOwnershipPrivilege 980 WMIC.exe Token: SeLoadDriverPrivilege 980 WMIC.exe Token: SeSystemProfilePrivilege 980 WMIC.exe Token: SeSystemtimePrivilege 980 WMIC.exe Token: SeProfSingleProcessPrivilege 980 WMIC.exe Token: SeIncBasePriorityPrivilege 980 WMIC.exe Token: SeCreatePagefilePrivilege 980 WMIC.exe Token: SeBackupPrivilege 980 WMIC.exe Token: SeRestorePrivilege 980 WMIC.exe Token: SeShutdownPrivilege 980 WMIC.exe Token: SeDebugPrivilege 980 WMIC.exe Token: SeSystemEnvironmentPrivilege 980 WMIC.exe Token: SeRemoteShutdownPrivilege 980 WMIC.exe Token: SeUndockPrivilege 980 WMIC.exe Token: SeManageVolumePrivilege 980 WMIC.exe Token: 33 980 WMIC.exe Token: 34 980 WMIC.exe Token: 35 980 WMIC.exe Token: SeIncreaseQuotaPrivilege 980 WMIC.exe -
Suspicious use of WriteProcessMemory 32 IoCs
description pid Process procid_target PID 1756 wrote to memory of 1396 1756 msg.exe 29 PID 1756 wrote to memory of 1396 1756 msg.exe 29 PID 1756 wrote to memory of 1396 1756 msg.exe 29 PID 1756 wrote to memory of 1396 1756 msg.exe 29 PID 1756 wrote to memory of 1920 1756 msg.exe 31 PID 1756 wrote to memory of 1920 1756 msg.exe 31 PID 1756 wrote to memory of 1920 1756 msg.exe 31 PID 1756 wrote to memory of 1920 1756 msg.exe 31 PID 1920 wrote to memory of 972 1920 igfxCUIService.exe 32 PID 1920 wrote to memory of 972 1920 igfxCUIService.exe 32 PID 1920 wrote to memory of 972 1920 igfxCUIService.exe 32 PID 1920 wrote to memory of 972 1920 igfxCUIService.exe 32 PID 972 wrote to memory of 1036 972 powershell.exe 34 PID 972 wrote to memory of 1036 972 powershell.exe 34 PID 972 wrote to memory of 1036 972 powershell.exe 34 PID 972 wrote to memory of 1036 972 powershell.exe 34 PID 972 wrote to memory of 956 972 powershell.exe 37 PID 972 wrote to memory of 956 972 powershell.exe 37 PID 972 wrote to memory of 956 972 powershell.exe 37 PID 972 wrote to memory of 956 972 powershell.exe 37 PID 1920 wrote to memory of 1564 1920 igfxCUIService.exe 38 PID 1920 wrote to memory of 1564 1920 igfxCUIService.exe 38 PID 1920 wrote to memory of 1564 1920 igfxCUIService.exe 38 PID 1920 wrote to memory of 1564 1920 igfxCUIService.exe 38 PID 1920 wrote to memory of 1748 1920 igfxCUIService.exe 40 PID 1920 wrote to memory of 1748 1920 igfxCUIService.exe 40 PID 1920 wrote to memory of 1748 1920 igfxCUIService.exe 40 PID 1920 wrote to memory of 1748 1920 igfxCUIService.exe 40 PID 1748 wrote to memory of 980 1748 cmd.exe 42 PID 1748 wrote to memory of 980 1748 cmd.exe 42 PID 1748 wrote to memory of 980 1748 cmd.exe 42 PID 1748 wrote to memory of 980 1748 cmd.exe 42
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:1756 -
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:1396
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C:\ProgramData\SystemData\igfxCUIService.exe"C:\ProgramData\SystemData\igfxCUIService.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1920 -
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:972 -
C:\Windows\SysWOW64\getmac.exe"C:\Windows\system32\getmac.exe"4⤵PID:1036
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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:956
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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:1564
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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:1748 -
C:\Windows\SysWOW64\Wbem\WMIC.exewmic OS get Caption, CSDVersion, OSArchitecture, Version / value4⤵
- Suspicious use of AdjustPrivilegeToken
PID:980
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