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
19/09/2022, 17:59
Static task
static1
Behavioral task
behavioral1
Sample
a2fa2b28857ae40da56ab36e270df2c47d4591ac7f9d81e7a14583a745085942.exe
Resource
win10-20220812-en
General
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Target
a2fa2b28857ae40da56ab36e270df2c47d4591ac7f9d81e7a14583a745085942.exe
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Size
721KB
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MD5
7d0bad94562368aa38c2c30ac906c2d2
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SHA1
6341af09be233487048d261fa7a6d69e69819d9c
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SHA256
a2fa2b28857ae40da56ab36e270df2c47d4591ac7f9d81e7a14583a745085942
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SHA512
c438fa789da6166d1c673a2a415757f3c3496deefbec6552c5a5fb88c4ab31cff0e195438e60a801222e051b10a2ded0a617fb881304f4ffaf73f2d6a61b5790
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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 2084 dllhost.exe -
Adds Run key to start application 2 TTPs 9 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Windows\CurrentVersion\Run\WindowsDefender = "C:\\Program Files\\Windows Defender\\MpCmdRun.exe" dllhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Windows\CurrentVersion\Run\Cortana = "C:\\Program Files\\WindowsApps\\Microsoft.x64__8wekyb3gfdfdgd8bbwe\\Cortana.exe" dllhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Windows\CurrentVersion\Run\WmiPrvSE = "C:\\Windows\\System32\\wbem\\WmiPrvSE.exe" dllhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\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-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicrosoftEdgeUpd = "C:\\Program Files\\WindowsApps\\Microsoft.x64__8wekyb3gfdfdgd8bbwe/file.exe" dllhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Windows\CurrentVersion\Run\NvStray = "C:\\Program Files\\WindowsApps\\Microsoft.x64__8wekyb3gfdfdgd8bbwe/file.exe" dllhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Windows\CurrentVersion\Run\dllhost = "C:\\ProgramData\\Dllhost\\dllhost.exe" dllhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Windows\CurrentVersion\Run\SecurityHealthSystray = "C:\\Windows\\System32\\SecurityHealthSystray.exe" dllhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\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 10 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4752 schtasks.exe 4768 schtasks.exe 4928 schtasks.exe 4728 schtasks.exe 4328 schtasks.exe 4700 schtasks.exe 4824 schtasks.exe 776 schtasks.exe 4576 schtasks.exe 4584 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1304 powershell.exe 1304 powershell.exe 1304 powershell.exe 3784 powershell.exe 3784 powershell.exe 3784 powershell.exe 496 powershell.exe 496 powershell.exe 496 powershell.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe 2084 dllhost.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
description pid Process Token: SeDebugPrivilege 1304 powershell.exe Token: SeDebugPrivilege 2900 a2fa2b28857ae40da56ab36e270df2c47d4591ac7f9d81e7a14583a745085942.exe Token: SeDebugPrivilege 3784 powershell.exe Token: SeDebugPrivilege 496 powershell.exe Token: SeDebugPrivilege 2084 dllhost.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 2900 wrote to memory of 4100 2900 a2fa2b28857ae40da56ab36e270df2c47d4591ac7f9d81e7a14583a745085942.exe 67 PID 2900 wrote to memory of 4100 2900 a2fa2b28857ae40da56ab36e270df2c47d4591ac7f9d81e7a14583a745085942.exe 67 PID 2900 wrote to memory of 4100 2900 a2fa2b28857ae40da56ab36e270df2c47d4591ac7f9d81e7a14583a745085942.exe 67 PID 4100 wrote to memory of 1492 4100 cmd.exe 68 PID 4100 wrote to memory of 1492 4100 cmd.exe 68 PID 4100 wrote to memory of 1492 4100 cmd.exe 68 PID 4100 wrote to memory of 1304 4100 cmd.exe 70 PID 4100 wrote to memory of 1304 4100 cmd.exe 70 PID 4100 wrote to memory of 1304 4100 cmd.exe 70 PID 4100 wrote to memory of 3784 4100 cmd.exe 71 PID 4100 wrote to memory of 3784 4100 cmd.exe 71 PID 4100 wrote to memory of 3784 4100 cmd.exe 71 PID 4100 wrote to memory of 496 4100 cmd.exe 72 PID 4100 wrote to memory of 496 4100 cmd.exe 72 PID 4100 wrote to memory of 496 4100 cmd.exe 72 PID 2900 wrote to memory of 2084 2900 a2fa2b28857ae40da56ab36e270df2c47d4591ac7f9d81e7a14583a745085942.exe 73 PID 2900 wrote to memory of 2084 2900 a2fa2b28857ae40da56ab36e270df2c47d4591ac7f9d81e7a14583a745085942.exe 73 PID 2900 wrote to memory of 2084 2900 a2fa2b28857ae40da56ab36e270df2c47d4591ac7f9d81e7a14583a745085942.exe 73 PID 2084 wrote to memory of 3088 2084 dllhost.exe 74 PID 2084 wrote to memory of 3088 2084 dllhost.exe 74 PID 2084 wrote to memory of 3088 2084 dllhost.exe 74 PID 2084 wrote to memory of 2588 2084 dllhost.exe 75 PID 2084 wrote to memory of 2588 2084 dllhost.exe 75 PID 2084 wrote to memory of 2588 2084 dllhost.exe 75 PID 2084 wrote to memory of 1480 2084 dllhost.exe 76 PID 2084 wrote to memory of 1480 2084 dllhost.exe 76 PID 2084 wrote to memory of 1480 2084 dllhost.exe 76 PID 2084 wrote to memory of 5000 2084 dllhost.exe 77 PID 2084 wrote to memory of 5000 2084 dllhost.exe 77 PID 2084 wrote to memory of 5000 2084 dllhost.exe 77 PID 2084 wrote to memory of 5032 2084 dllhost.exe 78 PID 2084 wrote to memory of 5032 2084 dllhost.exe 78 PID 2084 wrote to memory of 5032 2084 dllhost.exe 78 PID 2084 wrote to memory of 5116 2084 dllhost.exe 79 PID 2084 wrote to memory of 5116 2084 dllhost.exe 79 PID 2084 wrote to memory of 5116 2084 dllhost.exe 79 PID 2084 wrote to memory of 940 2084 dllhost.exe 80 PID 2084 wrote to memory of 940 2084 dllhost.exe 80 PID 2084 wrote to memory of 940 2084 dllhost.exe 80 PID 2084 wrote to memory of 1992 2084 dllhost.exe 83 PID 2084 wrote to memory of 1992 2084 dllhost.exe 83 PID 2084 wrote to memory of 1992 2084 dllhost.exe 83 PID 2084 wrote to memory of 1112 2084 dllhost.exe 90 PID 2084 wrote to memory of 1112 2084 dllhost.exe 90 PID 2084 wrote to memory of 1112 2084 dllhost.exe 90 PID 2084 wrote to memory of 1552 2084 dllhost.exe 85 PID 2084 wrote to memory of 1552 2084 dllhost.exe 85 PID 2084 wrote to memory of 1552 2084 dllhost.exe 85 PID 2084 wrote to memory of 4384 2084 dllhost.exe 86 PID 2084 wrote to memory of 4384 2084 dllhost.exe 86 PID 2084 wrote to memory of 4384 2084 dllhost.exe 86 PID 2084 wrote to memory of 4516 2084 dllhost.exe 88 PID 2084 wrote to memory of 4516 2084 dllhost.exe 88 PID 2084 wrote to memory of 4516 2084 dllhost.exe 88 PID 3088 wrote to memory of 4584 3088 cmd.exe 100 PID 3088 wrote to memory of 4584 3088 cmd.exe 100 PID 3088 wrote to memory of 4584 3088 cmd.exe 100 PID 1992 wrote to memory of 4576 1992 cmd.exe 98 PID 1992 wrote to memory of 4576 1992 cmd.exe 98 PID 1992 wrote to memory of 4576 1992 cmd.exe 98 PID 1552 wrote to memory of 4328 1552 cmd.exe 99 PID 1552 wrote to memory of 4328 1552 cmd.exe 99 PID 1552 wrote to memory of 4328 1552 cmd.exe 99 PID 1480 wrote to memory of 4824 1480 cmd.exe 101
Processes
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C:\Users\Admin\AppData\Local\Temp\a2fa2b28857ae40da56ab36e270df2c47d4591ac7f9d81e7a14583a745085942.exe"C:\Users\Admin\AppData\Local\Temp\a2fa2b28857ae40da56ab36e270df2c47d4591ac7f9d81e7a14583a745085942.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2900 -
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C chcp 1251 & powershell -Command Add-MpPreference -ExclusionPath "$ENV:USERPROFILE\Desktop" & powershell -Command Add-MpPreference -ExclusionPath "C:\ProgramData\Dllhost" & powershell -Command Add-MpPreference -ExclusionPath "C:\ProgramData\HostData"2⤵
- Suspicious use of WriteProcessMemory
PID:4100 -
C:\Windows\SysWOW64\chcp.comchcp 12513⤵PID:1492
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -Command Add-MpPreference -ExclusionPath "$ENV:USERPROFILE\Desktop"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1304
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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:3784
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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:496
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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:2084 -
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:3088 -
C:\Windows\SysWOW64\schtasks.exeSCHTASKS /CREATE /SC HOURLY /TN "SecurityHealthSystray" /TR "C:\ProgramData\Dllhost\dllhost.exe"4⤵
- Creates scheduled task(s)
PID:4584
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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⤵PID:2588
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C:\Windows\SysWOW64\schtasks.exeSCHTASKS /CREATE /SC HOURLY /TN "WindowsDefender" /TR "C:\ProgramData\Dllhost\dllhost.exe"4⤵
- Creates scheduled task(s)
PID:4752
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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:1480 -
C:\Windows\SysWOW64\schtasks.exeSCHTASKS /CREATE /SC HOURLY /TN "WmiPrvSE" /TR "C:\ProgramData\Dllhost\dllhost.exe"4⤵
- Creates scheduled task(s)
PID:4824
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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⤵PID:5000
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C:\Windows\SysWOW64\schtasks.exeSCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareServiceExecutable" /TR "C:\ProgramData\Dllhost\dllhost.exe"4⤵
- Creates scheduled task(s)
PID:4768
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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:5032
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C:\Windows\SysWOW64\schtasks.exeSCHTASKS /CREATE /SC HOURLY /TN "dllhost" /TR "C:\ProgramData\Dllhost\dllhost.exe"4⤵
- Creates scheduled task(s)
PID:4928
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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:5116
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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:940
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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:4728
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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⤵
- Suspicious use of WriteProcessMemory
PID:1992 -
C:\Windows\SysWOW64\schtasks.exeSCHTASKS /CREATE /SC HOURLY /TN "NvStray" /TR "C:\ProgramData\Dllhost\dllhost.exe"4⤵
- Creates scheduled task(s)
PID:4576
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareSericeExecutable\AntiMalwareSericeExecutableService_bk6830" /TR "C:\ProgramData\Dllhost\dllhost.exe"3⤵
- Suspicious use of WriteProcessMemory
PID:1552 -
C:\Windows\SysWOW64\schtasks.exeSCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareSericeExecutable\AntiMalwareSericeExecutableService_bk6830" /TR "C:\ProgramData\Dllhost\dllhost.exe"4⤵
- Creates scheduled task(s)
PID:4328
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "MicrosoftUpdateServices\MicrosoftUpdateServicesService_bk3719" /TR "C:\ProgramData\Dllhost\dllhost.exe"3⤵PID:4384
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C:\Windows\SysWOW64\schtasks.exeSCHTASKS /CREATE /SC HOURLY /TN "MicrosoftUpdateServices\MicrosoftUpdateServicesService_bk3719" /TR "C:\ProgramData\Dllhost\dllhost.exe"4⤵
- Creates scheduled task(s)
PID:4700
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "SettingSysHost\SettingSysHostService_bk3970" /TR "C:\ProgramData\Dllhost\dllhost.exe"3⤵PID:4516
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "WindowsDefenderServices\WindowsDefenderServicesService_bk4036" /TR "C:\ProgramData\Dllhost\dllhost.exe"3⤵PID:1112
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C:\Windows\SysWOW64\schtasks.exeSCHTASKS /CREATE /SC HOURLY /TN "WindowsDefenderServices\WindowsDefenderServicesService_bk4036" /TR "C:\ProgramData\Dllhost\dllhost.exe"4⤵
- Creates scheduled task(s)
PID:776
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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:1548
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C:\Windows\SysWOW64\chcp.comchcp 12514⤵PID:2512
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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:2432
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C:\Windows\SysWOW64\chcp.comchcp 12514⤵PID:2436
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
908KB
MD5508f0fd832b01085836865a93361c1c4
SHA13ecac7b383b0c1342d692b6edc93bfa0d06b016d
SHA256424929c3b718c700825376176a2aa7beffa0aca58c2679de9f0099a48e2d5560
SHA512a70e0faf5af8271ac7b7e6b2a9b1c1519fd0775335a9102dec578f48275d52bc5e6d029260ae86b725feca9b776aa38deb230de9f88bd4ba92bbaf21afa66027
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Filesize
908KB
MD5508f0fd832b01085836865a93361c1c4
SHA13ecac7b383b0c1342d692b6edc93bfa0d06b016d
SHA256424929c3b718c700825376176a2aa7beffa0aca58c2679de9f0099a48e2d5560
SHA512a70e0faf5af8271ac7b7e6b2a9b1c1519fd0775335a9102dec578f48275d52bc5e6d029260ae86b725feca9b776aa38deb230de9f88bd4ba92bbaf21afa66027
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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
MD5dfa784c0a8793dce0c7e779245d62280
SHA12b374c7c61230b126f37fe4574b0d3a81761f254
SHA2569ef5e32a1776c37adf46eb300c44224459cb1dbafef83cc6e4bf51af69e3e3b8
SHA51278039a0d35757a000b4cde38e5bebd31e3a254b1ca6f3a6522e74a36bc991aa0a12b5d99f943cdc9d8524511a6d602e3a3a5419495e0363fd096637f9a80901e
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Filesize
18KB
MD5cc753206b6bc6d5ee0105617c4b6ff54
SHA17d3f896d2800156c55fa3f4c82dc947598f9f39a
SHA256bea8ce10ce848ea94777b31d9406c58081b1b72afcc7dd9f6757617e9e0b6a2c
SHA512a4e26bf81436faa0e36c597bd66d2f9081033ba253cbdbf97d9b4339ccad36f7ccda64b6cbb33d5f98dba5c24c6d255e37111cbbc59133529497fe2bb0fd8c43