Analysis
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max time kernel
150s -
max time network
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platform
windows10-1703_x64 -
resource
win10-20220901-en -
resource tags
arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system -
submitted
05/10/2022, 20:32
Static task
static1
Behavioral task
behavioral1
Sample
03e951c5c4ad06c26359248143662f10d11c805a7ba008b5bdc0ad901a8eacf2.exe
Resource
win10-20220901-en
General
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Target
03e951c5c4ad06c26359248143662f10d11c805a7ba008b5bdc0ad901a8eacf2.exe
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Size
731KB
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MD5
d6145268ad40245bbd2372714d1bc851
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SHA1
0835a120a26934b4cacaa1e7f1eb41131b4c45c2
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SHA256
03e951c5c4ad06c26359248143662f10d11c805a7ba008b5bdc0ad901a8eacf2
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SHA512
c26a2356d155abfa221e9c92fa93ac20293d78e8852ff928abce781e6b812e60f6dca51f6a42aa85bf57cdfac11b453db7f0b9eb9d05c55f46be82f5c3f3265d
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SSDEEP
768:rZmchlXKGREW6VA6joSRhFH+C9Pe2auEqainmngYWxuv8Gwmwoe9R4ZstojtfcWv:schl6M+lpDCUoHid0bIrlyR
Malware Config
Signatures
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Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 3728 dllhost.exe -
Adds Run key to start application 2 TTPs 9 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Windows\CurrentVersion\Run\SecurityHealthSystray = "C:\\Windows\\System32\\SecurityHealthSystray.exe" dllhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Windows\CurrentVersion\Run\Cortana = "C:\\Program Files\\WindowsApps\\Microsoft.x64__8wekyb3gfdfdgd8bbwe\\Cortana.exe" dllhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicrosoftEdgeUpd = "C:\\Program Files\\WindowsApps\\Microsoft.x64__8wekyb3gfdfdgd8bbwe/file.exe" dllhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Windows\CurrentVersion\Run\OneDriveService = "C:\\Program Files\\WindowsApps\\Microsoft.x64__8wekyb3gfdfdgd8bbwe/file.exe" dllhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Windows\CurrentVersion\Run\dllhost = "C:\\ProgramData\\Dllhost\\dllhost.exe" dllhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Windows\CurrentVersion\Run\WindowsDefender = "C:\\Program Files\\Windows Defender\\MpCmdRun.exe" dllhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Windows\CurrentVersion\Run\WmiPrvSE = "C:\\Windows\\System32\\wbem\\WmiPrvSE.exe" dllhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Windows\CurrentVersion\Run\AntiMalwareServiceExecutable = "C:\\ProgramData\\Microsoft\\Windows Defender\\Platform\\4.18.2111.5-0\\MsMpEng.exe" dllhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Windows\CurrentVersion\Run\NvStray = "C:\\Program Files\\WindowsApps\\Microsoft.x64__8wekyb3gfdfdgd8bbwe/file.exe" dllhost.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Creates scheduled task(s) 1 TTPs 6 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3856 schtasks.exe 3416 schtasks.exe 2760 schtasks.exe 2128 schtasks.exe 3484 schtasks.exe 1300 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4020 powershell.exe 4020 powershell.exe 4020 powershell.exe 2772 powershell.exe 2772 powershell.exe 2772 powershell.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe 3728 dllhost.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4020 powershell.exe Token: SeDebugPrivilege 328 03e951c5c4ad06c26359248143662f10d11c805a7ba008b5bdc0ad901a8eacf2.exe Token: SeDebugPrivilege 2772 powershell.exe Token: SeDebugPrivilege 3728 dllhost.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 328 wrote to memory of 2880 328 03e951c5c4ad06c26359248143662f10d11c805a7ba008b5bdc0ad901a8eacf2.exe 66 PID 328 wrote to memory of 2880 328 03e951c5c4ad06c26359248143662f10d11c805a7ba008b5bdc0ad901a8eacf2.exe 66 PID 328 wrote to memory of 2880 328 03e951c5c4ad06c26359248143662f10d11c805a7ba008b5bdc0ad901a8eacf2.exe 66 PID 2880 wrote to memory of 3476 2880 cmd.exe 68 PID 2880 wrote to memory of 3476 2880 cmd.exe 68 PID 2880 wrote to memory of 3476 2880 cmd.exe 68 PID 2880 wrote to memory of 4020 2880 cmd.exe 69 PID 2880 wrote to memory of 4020 2880 cmd.exe 69 PID 2880 wrote to memory of 4020 2880 cmd.exe 69 PID 2880 wrote to memory of 2772 2880 cmd.exe 70 PID 2880 wrote to memory of 2772 2880 cmd.exe 70 PID 2880 wrote to memory of 2772 2880 cmd.exe 70 PID 328 wrote to memory of 3728 328 03e951c5c4ad06c26359248143662f10d11c805a7ba008b5bdc0ad901a8eacf2.exe 71 PID 328 wrote to memory of 3728 328 03e951c5c4ad06c26359248143662f10d11c805a7ba008b5bdc0ad901a8eacf2.exe 71 PID 328 wrote to memory of 3728 328 03e951c5c4ad06c26359248143662f10d11c805a7ba008b5bdc0ad901a8eacf2.exe 71 PID 3728 wrote to memory of 1996 3728 dllhost.exe 72 PID 3728 wrote to memory of 1996 3728 dllhost.exe 72 PID 3728 wrote to memory of 1996 3728 dllhost.exe 72 PID 3728 wrote to memory of 1992 3728 dllhost.exe 73 PID 3728 wrote to memory of 1992 3728 dllhost.exe 73 PID 3728 wrote to memory of 1992 3728 dllhost.exe 73 PID 3728 wrote to memory of 3768 3728 dllhost.exe 74 PID 3728 wrote to memory of 3768 3728 dllhost.exe 74 PID 3728 wrote to memory of 3768 3728 dllhost.exe 74 PID 3728 wrote to memory of 3164 3728 dllhost.exe 75 PID 3728 wrote to memory of 3164 3728 dllhost.exe 75 PID 3728 wrote to memory of 3164 3728 dllhost.exe 75 PID 3728 wrote to memory of 4660 3728 dllhost.exe 76 PID 3728 wrote to memory of 4660 3728 dllhost.exe 76 PID 3728 wrote to memory of 4660 3728 dllhost.exe 76 PID 3728 wrote to memory of 3520 3728 dllhost.exe 77 PID 3728 wrote to memory of 3520 3728 dllhost.exe 77 PID 3728 wrote to memory of 3520 3728 dllhost.exe 77 PID 3728 wrote to memory of 432 3728 dllhost.exe 93 PID 3728 wrote to memory of 432 3728 dllhost.exe 93 PID 3728 wrote to memory of 432 3728 dllhost.exe 93 PID 3728 wrote to memory of 5068 3728 dllhost.exe 79 PID 3728 wrote to memory of 5068 3728 dllhost.exe 79 PID 3728 wrote to memory of 5068 3728 dllhost.exe 79 PID 3728 wrote to memory of 1172 3728 dllhost.exe 80 PID 3728 wrote to memory of 1172 3728 dllhost.exe 80 PID 3728 wrote to memory of 1172 3728 dllhost.exe 80 PID 3728 wrote to memory of 492 3728 dllhost.exe 81 PID 3728 wrote to memory of 492 3728 dllhost.exe 81 PID 3728 wrote to memory of 492 3728 dllhost.exe 81 PID 3728 wrote to memory of 4200 3728 dllhost.exe 90 PID 3728 wrote to memory of 4200 3728 dllhost.exe 90 PID 3728 wrote to memory of 4200 3728 dllhost.exe 90 PID 3728 wrote to memory of 192 3728 dllhost.exe 88 PID 3728 wrote to memory of 192 3728 dllhost.exe 88 PID 3728 wrote to memory of 192 3728 dllhost.exe 88 PID 3768 wrote to memory of 2128 3768 cmd.exe 99 PID 3768 wrote to memory of 2128 3768 cmd.exe 99 PID 3768 wrote to memory of 2128 3768 cmd.exe 99 PID 432 wrote to memory of 1300 432 cmd.exe 95 PID 432 wrote to memory of 1300 432 cmd.exe 95 PID 432 wrote to memory of 1300 432 cmd.exe 95 PID 3164 wrote to memory of 2760 3164 cmd.exe 98 PID 3164 wrote to memory of 2760 3164 cmd.exe 98 PID 3164 wrote to memory of 2760 3164 cmd.exe 98 PID 1992 wrote to memory of 3416 1992 cmd.exe 97 PID 1992 wrote to memory of 3416 1992 cmd.exe 97 PID 1992 wrote to memory of 3416 1992 cmd.exe 97 PID 1996 wrote to memory of 3856 1996 cmd.exe 96
Processes
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C:\Users\Admin\AppData\Local\Temp\03e951c5c4ad06c26359248143662f10d11c805a7ba008b5bdc0ad901a8eacf2.exe"C:\Users\Admin\AppData\Local\Temp\03e951c5c4ad06c26359248143662f10d11c805a7ba008b5bdc0ad901a8eacf2.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:328 -
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C chcp 1251 & powershell -Command Add-MpPreference -ExclusionPath "$ENV:USERPROFILE\Desktop" & powershell -Command Add-MpPreference -ExclusionPath "C:\ProgramData\Dllhost" & powershell -Command Add-MpPreference -ExclusionPath "C:\ProgramData\HostData"2⤵
- Suspicious use of WriteProcessMemory
PID:2880 -
C:\Windows\SysWOW64\chcp.comchcp 12513⤵PID:3476
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -Command Add-MpPreference -ExclusionPath "$ENV:USERPROFILE\Desktop"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4020
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -Command Add-MpPreference -ExclusionPath "C:\ProgramData\Dllhost"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2772
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C:\ProgramData\Dllhost\dllhost.exe"C:\ProgramData\Dllhost\dllhost.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3728 -
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "SecurityHealthSystray" /TR "C:\ProgramData\Dllhost\dllhost.exe"3⤵
- Suspicious use of WriteProcessMemory
PID:1996 -
C:\Windows\SysWOW64\schtasks.exeSCHTASKS /CREATE /SC HOURLY /TN "SecurityHealthSystray" /TR "C:\ProgramData\Dllhost\dllhost.exe"4⤵
- Creates scheduled task(s)
PID:3856
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "WindowsDefender" /TR "C:\ProgramData\Dllhost\dllhost.exe"3⤵
- Suspicious use of WriteProcessMemory
PID:1992 -
C:\Windows\SysWOW64\schtasks.exeSCHTASKS /CREATE /SC HOURLY /TN "WindowsDefender" /TR "C:\ProgramData\Dllhost\dllhost.exe"4⤵
- Creates scheduled task(s)
PID:3416
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "WmiPrvSE" /TR "C:\ProgramData\Dllhost\dllhost.exe"3⤵
- Suspicious use of WriteProcessMemory
PID:3768 -
C:\Windows\SysWOW64\schtasks.exeSCHTASKS /CREATE /SC HOURLY /TN "WmiPrvSE" /TR "C:\ProgramData\Dllhost\dllhost.exe"4⤵
- Creates scheduled task(s)
PID:2128
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareServiceExecutable" /TR "C:\ProgramData\Dllhost\dllhost.exe"3⤵
- Suspicious use of WriteProcessMemory
PID:3164 -
C:\Windows\SysWOW64\schtasks.exeSCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareServiceExecutable" /TR "C:\ProgramData\Dllhost\dllhost.exe"4⤵
- Creates scheduled task(s)
PID:2760
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "dllhost" /TR "C:\ProgramData\Dllhost\dllhost.exe"3⤵PID:4660
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "MicrosoftEdgeUpd" /TR "C:\ProgramData\Dllhost\dllhost.exe"3⤵PID:3520
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "NvStray" /TR "C:\ProgramData\Dllhost\dllhost.exe"3⤵PID:5068
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "WindowsDefenderServices\WindowsDefenderServicesService_bk3296" /TR "C:\ProgramData\Dllhost\dllhost.exe"3⤵PID:1172
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareSericeExecutable\AntiMalwareSericeExecutableService_bk2237" /TR "C:\ProgramData\Dllhost\dllhost.exe"3⤵PID:492
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C:\Windows\SysWOW64\schtasks.exeSCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareSericeExecutable\AntiMalwareSericeExecutableService_bk2237" /TR "C:\ProgramData\Dllhost\dllhost.exe"4⤵
- Creates scheduled task(s)
PID:3484
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "SettingSysHost\SettingSysHostService_bk2002" /TR "C:\ProgramData\Dllhost\dllhost.exe"3⤵PID:192
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "MicrosoftUpdateServices\MicrosoftUpdateServicesService_bk3846" /TR "C:\ProgramData\Dllhost\dllhost.exe"3⤵PID:4200
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "OneDriveService" /TR "C:\ProgramData\Dllhost\dllhost.exe"3⤵
- Suspicious use of WriteProcessMemory
PID:432 -
C:\Windows\SysWOW64\schtasks.exeSCHTASKS /CREATE /SC HOURLY /TN "OneDriveService" /TR "C:\ProgramData\Dllhost\dllhost.exe"4⤵
- Creates scheduled task(s)
PID:1300
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c chcp 1251 & C:\ProgramData\Dllhost\winlogson.exe --config msi.bin --log off3⤵PID:1504
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C:\Windows\SysWOW64\chcp.comchcp 12514⤵PID:1048
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c chcp 1251 & C:\ProgramData\Dllhost\winlogson.exe --config msi.bin --log off3⤵PID:4688
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C:\Windows\SysWOW64\chcp.comchcp 12514⤵PID:2168
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c chcp 1251 & C:\ProgramData\Dllhost\winlogson.exe --config msi.bin --log off3⤵PID:2736
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C:\Windows\SysWOW64\chcp.comchcp 12514⤵PID:2216
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
951KB
MD5f317bd399fdd1aa23be2be3ff9497bf9
SHA172e3ab6e67e7a48324c0a6e6c34870adadc74140
SHA2569cf65d4a213ddc9347b0430bc57aaf37f64239ce985c055035f5fc75dd95d62b
SHA512609d5502dd83dd67808c517a4e372acc31f2a98e624d22941a7a78939926934ed64a6a74325ed0586ddac492244b2be5fd6dcf71853b72c8d633bd2f616b0cd5
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Filesize
951KB
MD5f317bd399fdd1aa23be2be3ff9497bf9
SHA172e3ab6e67e7a48324c0a6e6c34870adadc74140
SHA2569cf65d4a213ddc9347b0430bc57aaf37f64239ce985c055035f5fc75dd95d62b
SHA512609d5502dd83dd67808c517a4e372acc31f2a98e624d22941a7a78939926934ed64a6a74325ed0586ddac492244b2be5fd6dcf71853b72c8d633bd2f616b0cd5
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Filesize
497B
MD513fda2ab01b83a5130842a5bab3892d3
SHA16e18e4b467cde054a63a95d4dfc030f156ecd215
SHA25676973d42c8fceceab7ec85b3d01b218db92564993e93a9bea31c52aa73aeee9e
SHA512c51f9fd6e452fbeeedd4dfaba3c7c887e337f01e68abdd27d4032f8be85def7ef3cf0c77bf60e425b085b76c0539464c6b6e5e805a69397c5519e8ccf9fffccc
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Filesize
2KB
MD51c19c16e21c97ed42d5beabc93391fc5
SHA18ad83f8e0b3acf8dfbbf87931e41f0d664c4df68
SHA2561bcd97396c83babfe6c5068ba590d7a3f8b70e72955a9d1e4070648e404cbf05
SHA5127d18776d8f649b3d29c182ff03efc6cea8b527542ee55304980f24577aae8b64e37044407776e220984346c3998ace5f8853afa58c8b38407482a728e9495e0c
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Filesize
18KB
MD5d20b6a1c2e131572760778c87d62ec73
SHA1888241158f76a901acebd430632908d5dad0ecf2
SHA256b87e831fb53a71bfd8b4d85ba292b65b1ea55aab616b594b8e4d6111c9a6d3d6
SHA5121f8b3a8fb769054f746f4e63f3d31accdfa5814a519bec5a1d02f151e4ebd1ccc50d432488c4c5a609b6d2fb1840c7b0fb2bf0df388460cf9b5a591ede316ddc