Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-1703_x64 -
resource
win10-20230220-en -
resource tags
arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system -
submitted
28/05/2023, 08:14
Static task
static1
General
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Target
f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe
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Size
4.2MB
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MD5
f98616ca10fec12b9beb37ca15a63b0f
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SHA1
2581799ed3b601a514e9da42fa91ae7167f8bb7f
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SHA256
f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b
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SHA512
ce32fa045e21e07f7a403ec71e60972d9e2b1521b1e8982fcd61e5f0290dcc9bdd55729b744342693c833e6330fbbe70d11069850a3e59a13e66a07e45152391
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SSDEEP
98304:/RKU80KHe0iz3Dt6Ds6DV8G66EjKN69i5SvbFOqRrLfO2FnC8e:/4e0i7Dt6XDGG/EjKN6LjxdFnC8e
Malware Config
Signatures
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Glupteba payload 16 IoCs
resource yara_rule behavioral1/memory/3608-121-0x0000000003080000-0x000000000396B000-memory.dmp family_glupteba behavioral1/memory/3608-270-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral1/memory/3608-418-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral1/memory/1672-687-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral1/memory/1672-1151-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral1/memory/1044-1428-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral1/memory/1044-1889-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral1/memory/1044-1890-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral1/memory/1044-1891-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral1/memory/1044-1892-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral1/memory/1044-1893-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral1/memory/1044-1894-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral1/memory/1044-1895-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral1/memory/1044-1896-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral1/memory/1044-1897-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral1/memory/1044-1898-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe = "0" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
pid Process 5012 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 1044 csrss.exe 3664 injector.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe = "0" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3346939869-2835594282-3775165920-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (str) \REGISTRY\USER\S-1-5-21-3346939869-2835594282-3775165920-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe File created C:\Windows\rss\csrss.exe f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4904 schtasks.exe 3924 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control\NetTrace netsh.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4500 powershell.exe 4500 powershell.exe 4500 powershell.exe 3608 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 3608 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 3504 powershell.exe 3504 powershell.exe 3504 powershell.exe 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 4920 powershell.exe 4920 powershell.exe 4920 powershell.exe 1312 powershell.exe 1312 powershell.exe 1312 powershell.exe 1116 powershell.exe 1116 powershell.exe 1116 powershell.exe 3364 powershell.exe 3364 powershell.exe 3364 powershell.exe 3784 powershell.exe 3784 powershell.exe 3784 powershell.exe 3664 injector.exe 3664 injector.exe 3664 injector.exe 3664 injector.exe 3664 injector.exe 3664 injector.exe 3664 injector.exe 3664 injector.exe 1044 csrss.exe 1044 csrss.exe 3664 injector.exe 3664 injector.exe 3664 injector.exe 3664 injector.exe 3664 injector.exe 3664 injector.exe 1044 csrss.exe 1044 csrss.exe 3664 injector.exe 3664 injector.exe 3664 injector.exe 3664 injector.exe 3664 injector.exe 3664 injector.exe 3664 injector.exe 3664 injector.exe 3664 injector.exe 3664 injector.exe 3664 injector.exe 3664 injector.exe 3664 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 4500 powershell.exe Token: SeDebugPrivilege 3608 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Token: SeImpersonatePrivilege 3608 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe Token: SeDebugPrivilege 3504 powershell.exe Token: SeDebugPrivilege 4920 powershell.exe Token: SeDebugPrivilege 1312 powershell.exe Token: SeDebugPrivilege 1116 powershell.exe Token: SeDebugPrivilege 3364 powershell.exe Token: SeDebugPrivilege 3784 powershell.exe Token: SeSystemEnvironmentPrivilege 1044 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 3608 wrote to memory of 4500 3608 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 67 PID 3608 wrote to memory of 4500 3608 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 67 PID 3608 wrote to memory of 4500 3608 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 67 PID 1672 wrote to memory of 3504 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 72 PID 1672 wrote to memory of 3504 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 72 PID 1672 wrote to memory of 3504 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 72 PID 1672 wrote to memory of 4824 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 74 PID 1672 wrote to memory of 4824 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 74 PID 4824 wrote to memory of 5012 4824 cmd.exe 76 PID 4824 wrote to memory of 5012 4824 cmd.exe 76 PID 1672 wrote to memory of 4920 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 77 PID 1672 wrote to memory of 4920 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 77 PID 1672 wrote to memory of 4920 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 77 PID 1672 wrote to memory of 1312 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 79 PID 1672 wrote to memory of 1312 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 79 PID 1672 wrote to memory of 1312 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 79 PID 1672 wrote to memory of 1044 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 81 PID 1672 wrote to memory of 1044 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 81 PID 1672 wrote to memory of 1044 1672 f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe 81 PID 1044 wrote to memory of 1116 1044 csrss.exe 82 PID 1044 wrote to memory of 1116 1044 csrss.exe 82 PID 1044 wrote to memory of 1116 1044 csrss.exe 82 PID 1044 wrote to memory of 3364 1044 csrss.exe 89 PID 1044 wrote to memory of 3364 1044 csrss.exe 89 PID 1044 wrote to memory of 3364 1044 csrss.exe 89 PID 1044 wrote to memory of 3784 1044 csrss.exe 91 PID 1044 wrote to memory of 3784 1044 csrss.exe 91 PID 1044 wrote to memory of 3784 1044 csrss.exe 91 PID 1044 wrote to memory of 3664 1044 csrss.exe 93 PID 1044 wrote to memory of 3664 1044 csrss.exe 93 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe"C:\Users\Admin\AppData\Local\Temp\f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3608 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4500
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C:\Users\Admin\AppData\Local\Temp\f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe"C:\Users\Admin\AppData\Local\Temp\f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b.exe"2⤵
- Windows security bypass
- Windows security modification
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1672 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3504
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C:\Windows\System32\cmd.exeC:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"3⤵
- Suspicious use of WriteProcessMemory
PID:4824 -
C:\Windows\system32\netsh.exenetsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes4⤵
- Modifies Windows Firewall
- Modifies data under HKEY_USERS
PID:5012
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4920
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1312
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1044 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1116
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:4904
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:668
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3364
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3784
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeC:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:3664
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:3924
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1B
MD5c4ca4238a0b923820dcc509a6f75849b
SHA1356a192b7913b04c54574d18c28d46e6395428ab
SHA2566b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
SHA5124dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD51c19c16e21c97ed42d5beabc93391fc5
SHA18ad83f8e0b3acf8dfbbf87931e41f0d664c4df68
SHA2561bcd97396c83babfe6c5068ba590d7a3f8b70e72955a9d1e4070648e404cbf05
SHA5127d18776d8f649b3d29c182ff03efc6cea8b527542ee55304980f24577aae8b64e37044407776e220984346c3998ace5f8853afa58c8b38407482a728e9495e0c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD5de0e5982a84b969897a8c1c0deadc168
SHA13f5348830619f13dc057a519f3fea481f22a8725
SHA256a7b110e620f1ba142d089a587afc2497fdce406ca77666729af06943f28798f9
SHA5123dae7d00bd40518221148b564e9e8b8f7d2a2a8182dc403340bf7c7dc470c13b41d561237dc52f11de96a6b735bf2d2fa176f4c0ef90018be417563375485acf
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD529eab0dfb603bacef28f71148a1847d3
SHA19db0ed84eaca1356c58447a5c89256aa362a175b
SHA256a521f155596c68dc18c97920ec21472f325a59d42db1577281f1ac47f3f8fd82
SHA51232f4f4451b20c4dda138796acfdab75bd6dcada72843adec8a760fb50ef88c86dbefe110a4f0fe87a01cc25e730508febbf257415149ff0c4e9d024fde7b6a14
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD58a9288c5699c32b717efe77d9cec09da
SHA1bebf82519036b662e7cc648ee030a534b7f26ba6
SHA256b5bc5750b5d2c2c68943cc3d9e2c26f4d6c5e3c457afd95c0a27f0d04f1d895d
SHA51268342d13d7bf07fe82b196b34b28ece95acef4fe1fc5e3f02a741e75745901ae1f6b66e901d8c48c93dfa8c8812c8de86654001b94b19f052907153d6b50d844
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD589bf0afe06e55dfe3560f40356e13dcf
SHA1165ecae688b5e6ae9a4eacde0c44fb83e4309e5f
SHA256b4e5049ed0bbdb2229a2a2b943f39b91785d722da9b4724e30346c29efb2b479
SHA512bafcb090d4a16675f9af5a045442a33854d6ae782d05724a2fcfe5904e926d9a5365313d4c26c3548b57e52e72ff304c96f8d954d8ebf416bf0f4f06ce33bfa4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD54d7ba92f5fb71860c772f669e8123b64
SHA12decfc80e14a00693901ab0649ea5648dc8cb131
SHA25601a2badb7a66955f365db3191ce4fe68eec4be2290c6274578fb71e6e2486c75
SHA512e8f14e0b66866ad3f2248fbf1034aa81c3fd1787d84762d436d0c6b23e21f7edd11857db551600e8ca2c3b79fccf534a304305a181da3b4b5b54205446d931d3
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Filesize
4.2MB
MD5f98616ca10fec12b9beb37ca15a63b0f
SHA12581799ed3b601a514e9da42fa91ae7167f8bb7f
SHA256f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b
SHA512ce32fa045e21e07f7a403ec71e60972d9e2b1521b1e8982fcd61e5f0290dcc9bdd55729b744342693c833e6330fbbe70d11069850a3e59a13e66a07e45152391
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Filesize
4.2MB
MD5f98616ca10fec12b9beb37ca15a63b0f
SHA12581799ed3b601a514e9da42fa91ae7167f8bb7f
SHA256f6fb51220207021f02a9d90531d383565c7906428e112adf3f321145ff1c9e2b
SHA512ce32fa045e21e07f7a403ec71e60972d9e2b1521b1e8982fcd61e5f0290dcc9bdd55729b744342693c833e6330fbbe70d11069850a3e59a13e66a07e45152391