Analysis
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max time kernel
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max time network
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platform
windows10-1703_x64 -
resource
win10-20220812-en -
resource tags
arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system -
submitted
12/09/2022, 18:58
Static task
static1
Behavioral task
behavioral1
Sample
05520f1bb2bb7f3bc93650294fb7e61dbe9a73d0c548be3d20a083a43f02ddad.exe
Resource
win10-20220812-en
General
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Target
05520f1bb2bb7f3bc93650294fb7e61dbe9a73d0c548be3d20a083a43f02ddad.exe
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Size
716KB
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MD5
e7d214cb1862447ff04b01780506fb6b
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SHA1
71300ffcb87bc9b94c214d762b035d0a512e54b5
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SHA256
05520f1bb2bb7f3bc93650294fb7e61dbe9a73d0c548be3d20a083a43f02ddad
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SHA512
5363d120bc03ef2c3dc947c90515b756393616f7c74b8ff2d89bd9edd26a6471751aee1f01bdbf53a68bef44cc6d800e03f3aa9bf733d8448b9b7425a95772eb
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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 812 dllhost.exe -
Adds Run key to start application 2 TTPs 9 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3844063266-715245855-4050956231-1000\Software\Microsoft\Windows\CurrentVersion\Run\dllhost = "C:\\ProgramData\\Dllhost\\dllhost.exe" dllhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-3844063266-715245855-4050956231-1000\Software\Microsoft\Windows\CurrentVersion\Run\SecurityHealthSystray = "C:\\Windows\\System32\\SecurityHealthSystray.exe" dllhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-3844063266-715245855-4050956231-1000\Software\Microsoft\Windows\CurrentVersion\Run\WindowsDefender = "C:\\Program Files\\Windows Defender\\MpCmdRun.exe" dllhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-3844063266-715245855-4050956231-1000\Software\Microsoft\Windows\CurrentVersion\Run\Cortana = "C:\\Program Files\\WindowsApps\\Microsoft.x64__8wekyb3gfdfdgd8bbwe\\Cortana.exe" dllhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-3844063266-715245855-4050956231-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicrosoftEdgeUpd = "C:\\Program Files\\WindowsApps\\Microsoft.x64__8wekyb3gfdfdgd8bbwe/file.exe" dllhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-3844063266-715245855-4050956231-1000\Software\Microsoft\Windows\CurrentVersion\Run\NvStray = "C:\\Program Files\\WindowsApps\\Microsoft.x64__8wekyb3gfdfdgd8bbwe/file.exe" dllhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-3844063266-715245855-4050956231-1000\Software\Microsoft\Windows\CurrentVersion\Run\WmiPrvSE = "C:\\Windows\\System32\\wbem\\WmiPrvSE.exe" dllhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-3844063266-715245855-4050956231-1000\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-1-5-21-3844063266-715245855-4050956231-1000\Software\Microsoft\Windows\CurrentVersion\Run\OneDriveService = "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 5 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 5060 schtasks.exe 3724 schtasks.exe 4420 schtasks.exe 2276 schtasks.exe 4544 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2480 powershell.exe 2480 powershell.exe 2480 powershell.exe 2828 powershell.exe 2828 powershell.exe 2828 powershell.exe 692 powershell.exe 692 powershell.exe 692 powershell.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe 812 dllhost.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
description pid Process Token: SeDebugPrivilege 2480 powershell.exe Token: SeDebugPrivilege 2804 05520f1bb2bb7f3bc93650294fb7e61dbe9a73d0c548be3d20a083a43f02ddad.exe Token: SeDebugPrivilege 2828 powershell.exe Token: SeDebugPrivilege 692 powershell.exe Token: SeDebugPrivilege 812 dllhost.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 2804 wrote to memory of 1076 2804 05520f1bb2bb7f3bc93650294fb7e61dbe9a73d0c548be3d20a083a43f02ddad.exe 66 PID 2804 wrote to memory of 1076 2804 05520f1bb2bb7f3bc93650294fb7e61dbe9a73d0c548be3d20a083a43f02ddad.exe 66 PID 2804 wrote to memory of 1076 2804 05520f1bb2bb7f3bc93650294fb7e61dbe9a73d0c548be3d20a083a43f02ddad.exe 66 PID 1076 wrote to memory of 4852 1076 cmd.exe 68 PID 1076 wrote to memory of 4852 1076 cmd.exe 68 PID 1076 wrote to memory of 4852 1076 cmd.exe 68 PID 1076 wrote to memory of 2480 1076 cmd.exe 69 PID 1076 wrote to memory of 2480 1076 cmd.exe 69 PID 1076 wrote to memory of 2480 1076 cmd.exe 69 PID 1076 wrote to memory of 2828 1076 cmd.exe 70 PID 1076 wrote to memory of 2828 1076 cmd.exe 70 PID 1076 wrote to memory of 2828 1076 cmd.exe 70 PID 1076 wrote to memory of 692 1076 cmd.exe 71 PID 1076 wrote to memory of 692 1076 cmd.exe 71 PID 1076 wrote to memory of 692 1076 cmd.exe 71 PID 2804 wrote to memory of 812 2804 05520f1bb2bb7f3bc93650294fb7e61dbe9a73d0c548be3d20a083a43f02ddad.exe 72 PID 2804 wrote to memory of 812 2804 05520f1bb2bb7f3bc93650294fb7e61dbe9a73d0c548be3d20a083a43f02ddad.exe 72 PID 2804 wrote to memory of 812 2804 05520f1bb2bb7f3bc93650294fb7e61dbe9a73d0c548be3d20a083a43f02ddad.exe 72 PID 812 wrote to memory of 4752 812 dllhost.exe 73 PID 812 wrote to memory of 4752 812 dllhost.exe 73 PID 812 wrote to memory of 4752 812 dllhost.exe 73 PID 812 wrote to memory of 4564 812 dllhost.exe 74 PID 812 wrote to memory of 4564 812 dllhost.exe 74 PID 812 wrote to memory of 4564 812 dllhost.exe 74 PID 812 wrote to memory of 2136 812 dllhost.exe 75 PID 812 wrote to memory of 2136 812 dllhost.exe 75 PID 812 wrote to memory of 2136 812 dllhost.exe 75 PID 812 wrote to memory of 2044 812 dllhost.exe 90 PID 812 wrote to memory of 2044 812 dllhost.exe 90 PID 812 wrote to memory of 2044 812 dllhost.exe 90 PID 812 wrote to memory of 4868 812 dllhost.exe 76 PID 812 wrote to memory of 4868 812 dllhost.exe 76 PID 812 wrote to memory of 4868 812 dllhost.exe 76 PID 812 wrote to memory of 4252 812 dllhost.exe 77 PID 812 wrote to memory of 4252 812 dllhost.exe 77 PID 812 wrote to memory of 4252 812 dllhost.exe 77 PID 812 wrote to memory of 1236 812 dllhost.exe 88 PID 812 wrote to memory of 1236 812 dllhost.exe 88 PID 812 wrote to memory of 1236 812 dllhost.exe 88 PID 812 wrote to memory of 2928 812 dllhost.exe 79 PID 812 wrote to memory of 2928 812 dllhost.exe 79 PID 812 wrote to memory of 2928 812 dllhost.exe 79 PID 812 wrote to memory of 3104 812 dllhost.exe 87 PID 812 wrote to memory of 3104 812 dllhost.exe 87 PID 812 wrote to memory of 3104 812 dllhost.exe 87 PID 812 wrote to memory of 4892 812 dllhost.exe 81 PID 812 wrote to memory of 4892 812 dllhost.exe 81 PID 812 wrote to memory of 4892 812 dllhost.exe 81 PID 812 wrote to memory of 4236 812 dllhost.exe 84 PID 812 wrote to memory of 4236 812 dllhost.exe 84 PID 812 wrote to memory of 4236 812 dllhost.exe 84 PID 812 wrote to memory of 4220 812 dllhost.exe 83 PID 812 wrote to memory of 4220 812 dllhost.exe 83 PID 812 wrote to memory of 4220 812 dllhost.exe 83 PID 4752 wrote to memory of 5060 4752 cmd.exe 96 PID 4752 wrote to memory of 5060 4752 cmd.exe 96 PID 4752 wrote to memory of 5060 4752 cmd.exe 96 PID 4564 wrote to memory of 3724 4564 cmd.exe 97 PID 4564 wrote to memory of 3724 4564 cmd.exe 97 PID 4564 wrote to memory of 3724 4564 cmd.exe 97 PID 4236 wrote to memory of 2276 4236 cmd.exe 99 PID 4236 wrote to memory of 2276 4236 cmd.exe 99 PID 4236 wrote to memory of 2276 4236 cmd.exe 99 PID 2044 wrote to memory of 4420 2044 cmd.exe 98
Processes
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C:\Users\Admin\AppData\Local\Temp\05520f1bb2bb7f3bc93650294fb7e61dbe9a73d0c548be3d20a083a43f02ddad.exe"C:\Users\Admin\AppData\Local\Temp\05520f1bb2bb7f3bc93650294fb7e61dbe9a73d0c548be3d20a083a43f02ddad.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2804 -
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C chcp 1251 & powershell -Command Add-MpPreference -ExclusionPath "$ENV:USERPROFILE\Desktop" & powershell -Command Add-MpPreference -ExclusionPath "C:\ProgramData\Dllhost" & powershell -Command Add-MpPreference -ExclusionPath "C:\ProgramData\HostData"2⤵
- Suspicious use of WriteProcessMemory
PID:1076 -
C:\Windows\SysWOW64\chcp.comchcp 12513⤵PID:4852
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -Command Add-MpPreference -ExclusionPath "$ENV:USERPROFILE\Desktop"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2480
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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:2828
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -Command Add-MpPreference -ExclusionPath "C:\ProgramData\HostData"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:692
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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:812 -
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:4752 -
C:\Windows\SysWOW64\schtasks.exeSCHTASKS /CREATE /SC HOURLY /TN "SecurityHealthSystray" /TR "C:\ProgramData\Dllhost\dllhost.exe"4⤵
- Creates scheduled task(s)
PID:5060
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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:4564 -
C:\Windows\SysWOW64\schtasks.exeSCHTASKS /CREATE /SC HOURLY /TN "WindowsDefender" /TR "C:\ProgramData\Dllhost\dllhost.exe"4⤵
- Creates scheduled task(s)
PID:3724
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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⤵PID:2136
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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:4868
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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:4252
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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:2928
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareSericeExecutable\AntiMalwareSericeExecutableService_bk7295" /TR "C:\ProgramData\Dllhost\dllhost.exe"3⤵PID:4892
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "SettingSysHost\SettingSysHostService_bk2642" /TR "C:\ProgramData\Dllhost\dllhost.exe"3⤵PID:4220
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "MicrosoftUpdateServices\MicrosoftUpdateServicesService_bk8812" /TR "C:\ProgramData\Dllhost\dllhost.exe"3⤵
- Suspicious use of WriteProcessMemory
PID:4236 -
C:\Windows\SysWOW64\schtasks.exeSCHTASKS /CREATE /SC HOURLY /TN "MicrosoftUpdateServices\MicrosoftUpdateServicesService_bk8812" /TR "C:\ProgramData\Dllhost\dllhost.exe"4⤵
- Creates scheduled task(s)
PID:2276
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "WindowsDefenderServices\WindowsDefenderServicesService_bk7668" /TR "C:\ProgramData\Dllhost\dllhost.exe"3⤵PID:3104
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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⤵PID:1236
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C:\Windows\SysWOW64\schtasks.exeSCHTASKS /CREATE /SC HOURLY /TN "OneDriveService" /TR "C:\ProgramData\Dllhost\dllhost.exe"4⤵
- Creates scheduled task(s)
PID:4544
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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:2044 -
C:\Windows\SysWOW64\schtasks.exeSCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareServiceExecutable" /TR "C:\ProgramData\Dllhost\dllhost.exe"4⤵
- Creates scheduled task(s)
PID:4420
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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:3812
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C:\Windows\SysWOW64\chcp.comchcp 12514⤵PID:4076
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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:4656
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C:\Windows\SysWOW64\chcp.comchcp 12514⤵PID:4576
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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:584
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C:\Windows\SysWOW64\chcp.comchcp 12514⤵PID:3176
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
892KB
MD5116b43f59eb529369d05f7a8ad11cb0d
SHA1ae28081f36a602d7b90916f98a6cc76c46d674f6
SHA256446a24b00ada2962a154174c97892326f23e1b5396e148ccf95bd705b44b5406
SHA512332078205b2fb9454285b46091ec9d87a477d8d34fbcc2b2a09cf161defd815e02a63cff5796e2f2be099831ed1443fee092baf78b814df52555eff3e8d6051b
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Filesize
892KB
MD5116b43f59eb529369d05f7a8ad11cb0d
SHA1ae28081f36a602d7b90916f98a6cc76c46d674f6
SHA256446a24b00ada2962a154174c97892326f23e1b5396e148ccf95bd705b44b5406
SHA512332078205b2fb9454285b46091ec9d87a477d8d34fbcc2b2a09cf161defd815e02a63cff5796e2f2be099831ed1443fee092baf78b814df52555eff3e8d6051b
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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
MD501b669fbc49a7fe8347574029cef7392
SHA1b4d4526ed402eaf9ff8aa6aa79a3d2eb008e44be
SHA25638f8fcdecae1096abce08aed22a992dfd22ecc7078e7126b6aac76c26767d5cb
SHA512bee790405face396ff17db8184b6ddbc9a2ddb100fb50e0cc28ca0ebc99a7535f34878b5ffd6004574a9c958fade0579f3d0fe4e47254b2d7ab27d3d127cf5b0
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Filesize
18KB
MD5e3b90f2dfcbb7ac52a8315418b39a91c
SHA12d1dcb1454df549f673f901a6d0705938fe7876c
SHA2568ba3a0e1e4c9a1d5d15f311627c7a0734e7d2bb60c4b39949820cee3b093d0a5
SHA51236447e8ec837043aba4b2e16f254b6716b60cba65044662082490e950ff04ad68e60b097b2bc96863822525179f38af253d189647bcaf978839d70feef6408ba