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Analysis
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max time kernel
66s -
max time network
66s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
26/03/2024, 10:50
Static task
static1
Behavioral task
behavioral1
Sample
2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe
Resource
win10v2004-20240226-en
General
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Target
2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe
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Size
4.2MB
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MD5
980ba92a9990c31fe95f50a3a0484d9b
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SHA1
7d65262637388c6ff2e3d7a81c1d41852210f39e
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SHA256
2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f
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SHA512
bd26029fea9708d80c0dd90aad91210fe7c95b0e2d1dcd635540d7c4812b33439a2a81e202e899c870f1336bc79e88229933ec3986bb45bdb55c63a0d4a84009
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SSDEEP
98304:7Qx1mA16Q9J7UePP+dPnQjqZi7LPRPOwseq2a6JLSzHqqZL9C:M1me6QH4ePoPZALPRP/Qqws
Malware Config
Signatures
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Glupteba payload 13 IoCs
resource yara_rule behavioral2/memory/2044-2-0x00000000032D0000-0x0000000003BBB000-memory.dmp family_glupteba behavioral2/memory/2044-3-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/2044-45-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/2044-54-0x00000000032D0000-0x0000000003BBB000-memory.dmp family_glupteba behavioral2/memory/4284-55-0x0000000002C50000-0x0000000003053000-memory.dmp family_glupteba behavioral2/memory/4284-56-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/2044-57-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/4284-88-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/4284-104-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/4284-132-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/4284-151-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/1668-214-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba behavioral2/memory/1668-248-0x0000000000400000-0x0000000000ED8000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 956 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 1668 csrss.exe 2928 injector.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-160263616-143223877-1356318919-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.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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Drops file in System32 directory 7 IoCs
description ioc Process 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 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 -
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 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe File created C:\Windows\rss\csrss.exe 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe -
Program crash 2 IoCs
pid pid_target Process procid_target 4588 2044 WerFault.exe 79 3056 4284 WerFault.exe 85 -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2936 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed 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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 42 IoCs
pid Process 824 powershell.exe 824 powershell.exe 2044 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 2044 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 968 powershell.exe 968 powershell.exe 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 3232 powershell.exe 3232 powershell.exe 4736 powershell.exe 4736 powershell.exe 4852 powershell.exe 4852 powershell.exe 1336 powershell.exe 1336 powershell.exe 1968 powershell.exe 1968 powershell.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 1668 csrss.exe 1668 csrss.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe 2928 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 824 powershell.exe Token: SeDebugPrivilege 2044 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Token: SeImpersonatePrivilege 2044 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe Token: SeDebugPrivilege 968 powershell.exe Token: SeDebugPrivilege 3232 powershell.exe Token: SeDebugPrivilege 4736 powershell.exe Token: SeDebugPrivilege 4852 powershell.exe Token: SeDebugPrivilege 1336 powershell.exe Token: SeDebugPrivilege 1968 powershell.exe Token: SeSystemEnvironmentPrivilege 1668 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2044 wrote to memory of 824 2044 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 81 PID 2044 wrote to memory of 824 2044 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 81 PID 2044 wrote to memory of 824 2044 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 81 PID 4284 wrote to memory of 968 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 89 PID 4284 wrote to memory of 968 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 89 PID 4284 wrote to memory of 968 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 89 PID 4284 wrote to memory of 1988 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 91 PID 4284 wrote to memory of 1988 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 91 PID 1988 wrote to memory of 956 1988 cmd.exe 93 PID 1988 wrote to memory of 956 1988 cmd.exe 93 PID 4284 wrote to memory of 3232 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 94 PID 4284 wrote to memory of 3232 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 94 PID 4284 wrote to memory of 3232 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 94 PID 4284 wrote to memory of 4736 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 96 PID 4284 wrote to memory of 4736 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 96 PID 4284 wrote to memory of 4736 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 96 PID 4284 wrote to memory of 1668 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 98 PID 4284 wrote to memory of 1668 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 98 PID 4284 wrote to memory of 1668 4284 2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe 98 PID 1668 wrote to memory of 4852 1668 csrss.exe 101 PID 1668 wrote to memory of 4852 1668 csrss.exe 101 PID 1668 wrote to memory of 4852 1668 csrss.exe 101 PID 1668 wrote to memory of 1336 1668 csrss.exe 107 PID 1668 wrote to memory of 1336 1668 csrss.exe 107 PID 1668 wrote to memory of 1336 1668 csrss.exe 107 PID 1668 wrote to memory of 1968 1668 csrss.exe 109 PID 1668 wrote to memory of 1968 1668 csrss.exe 109 PID 1668 wrote to memory of 1968 1668 csrss.exe 109 PID 1668 wrote to memory of 2928 1668 csrss.exe 111 PID 1668 wrote to memory of 2928 1668 csrss.exe 111 -
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\2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe"C:\Users\Admin\AppData\Local\Temp\2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2044 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:824
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C:\Users\Admin\AppData\Local\Temp\2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe"C:\Users\Admin\AppData\Local\Temp\2550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f.exe"2⤵
- 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:4284 -
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:968
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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:1988 -
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
PID:956
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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:3232
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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:4736
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1668 -
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:4852
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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:2936
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3048
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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:1336
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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:1968
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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:2928
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4284 -s 8243⤵
- Program crash
PID:3056
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2044 -s 7962⤵
- Program crash
PID:4588
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2044 -ip 20441⤵PID:3940
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4284 -ip 42841⤵PID:2664
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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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
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55f4d9d6d2dad1f485d05b879bafc47d9
SHA10bc3e30631b995cdb0129741c3db2df8edce76cc
SHA256f088397ec42b29886448218abb3b84ec0237e05dbbc6a06246597632d4337111
SHA512281fc32987cb22a0c336ad02fead0ae92bd4eac66caccfc89350e247d314279409add10ce5e95c91d5c47627aeb31a5c15369e272b88e9c48457b1c5d487d539
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ba87f2f59569fd4100cfa1524c80cfc0
SHA137ca1f4698504af8b8124440874960641e8333a2
SHA2563924562d3a7896479971f8d4df4763f936d883a90050b33dd1a35b2daaa62ab1
SHA512f211e4a584af65677f409c6b9b6027569d97b196897827cc6911202be872dd7242dad47e5ba80a43e4155ae6647863afc56824c3fdda363b5b0076c097b0f4a7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5672bde4e200fd1287a9307e03d244269
SHA1f3573eb754b4c02743f2553a22f3003a58640fec
SHA256ab6c3241f8960e00a45a6da4a6f4c41044bd90814c6f3cf3557adbf5a0e62dd8
SHA5120b47288aa2b4a58841f96e39fffedacba56fe84cf916b613034bb30c7756f579bd8e0b9ca4af5938afd39d72c46777a77a00d7665051b2e8c74e3966c4a0515e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD561ec988ba8fa02e911522347e6b8f51c
SHA10c049b5a32961c1d90e1c80c9b64eb038157ab30
SHA25630cc6d196e6bd1110aae1cdf27dd55f5fe78d30de046ea31e8c61d11c877afe1
SHA512dd38ba1c61cef7fdc21d00240f8da8e9087d8bc2955652d2fcb94629818c2b8f2fe1f89dfb4bd477d5f6e1f0468269b66edbb38d2495c0844e8f58c908fe2bc1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD577817b85fc3530e52a4189e4e9b796f0
SHA1b4a7c8c28703b87dd5c72d24cda638eca91e8dc3
SHA2568440e03a6e8d52b8352c4ab5198ead412a5bccf890f40bf3bbbf920b9e111e8f
SHA5120866547f57afd761729873fd08660adaef07f85cce5d38a0410d3bbc6942185e6eb21a3a656b8bba7c25e64515ba6c3558a7afa6beda78997c51943da8406d1a
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Filesize
4.2MB
MD5980ba92a9990c31fe95f50a3a0484d9b
SHA17d65262637388c6ff2e3d7a81c1d41852210f39e
SHA2562550f80732159b01dd34c1c9a3152033e7ac7ac2c9a643d966c4b75a585ca45f
SHA512bd26029fea9708d80c0dd90aad91210fe7c95b0e2d1dcd635540d7c4812b33439a2a81e202e899c870f1336bc79e88229933ec3986bb45bdb55c63a0d4a84009