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Analysis
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max time kernel
150s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
11/04/2024, 04:12
Static task
static1
Behavioral task
behavioral1
Sample
bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe
Resource
win10v2004-20240226-en
General
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Target
bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe
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Size
4.2MB
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MD5
436a1fb70bea35945745af874a7c434d
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SHA1
b27ba686882d11d96faa27908d4355ca90588ea5
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SHA256
bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e
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SHA512
77d4f5ff7ceb38cc33b298e40373460018473da3bf126066baa7428b1629d7874e6f8a86343dcb0ac3a70fffb278ec5486e0fc907f4cb5dc22b5a506eb037cfe
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SSDEEP
98304:45lPBaWBrbylaZCxbWq17tgxAPYITosQNEMg2S6aC8AE4:GjBrYYebWqlbosQ6t6aC11
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/4064-2-0x0000000003150000-0x0000000003A3B000-memory.dmp family_glupteba behavioral2/memory/4064-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4064-51-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4064-53-0x0000000003150000-0x0000000003A3B000-memory.dmp family_glupteba behavioral2/memory/4224-54-0x0000000002A40000-0x0000000002E48000-memory.dmp family_glupteba behavioral2/memory/4224-55-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4224-130-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4224-152-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3512-246-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3512-260-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3512-263-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3512-267-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3512-271-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3512-276-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3512-280-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3512-283-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3512-287-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3512-291-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3020 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3512 csrss.exe 3060 injector.exe 2628 windefender.exe 2928 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a776-250.dat upx behavioral2/memory/2628-254-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/files/0x000200000002a776-253.dat upx behavioral2/memory/2928-261-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2928-268-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.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 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 File created 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 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe File created C:\Windows\rss\csrss.exe bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 4424 sc.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 3136 schtasks.exe 3112 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,-2182 = "Astrakhan Standard Time" bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-912 = "Mauritius Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1832 = "Russia TZ 2 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-791 = "SA Western Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-435 = "Georgian Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-162 = "Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2372 = "Easter Island Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.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\22\52C64B7E\@tzres.dll,-51 = "Greenland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-191 = "Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-872 = "Pakistan Standard Time" windefender.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" bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1722 = "Libya Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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\22\52C64B7E\@tzres.dll,-2412 = "Marquesas Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2182 = "Astrakhan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-211 = "Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-201 = "US Mountain Daylight Time" windefender.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\@tzres.dll,-352 = "FLE Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-871 = "Pakistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2841 = "Saratov Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 796 powershell.exe 796 powershell.exe 4064 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 4064 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 1876 powershell.exe 1876 powershell.exe 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 2212 powershell.exe 2212 powershell.exe 4592 powershell.exe 4592 powershell.exe 4920 powershell.exe 4920 powershell.exe 3580 powershell.exe 3580 powershell.exe 2248 powershell.exe 2248 powershell.exe 3060 injector.exe 3060 injector.exe 3060 injector.exe 3060 injector.exe 3060 injector.exe 3060 injector.exe 3060 injector.exe 3512 csrss.exe 3060 injector.exe 3512 csrss.exe 3060 injector.exe 3060 injector.exe 3060 injector.exe 3060 injector.exe 3512 csrss.exe 3512 csrss.exe 3060 injector.exe 3060 injector.exe 3512 csrss.exe 3512 csrss.exe 3060 injector.exe 3060 injector.exe 3060 injector.exe 3060 injector.exe 3060 injector.exe 3060 injector.exe 3060 injector.exe 3060 injector.exe 3060 injector.exe 3060 injector.exe 3060 injector.exe 3060 injector.exe 3060 injector.exe 3060 injector.exe 3060 injector.exe 3060 injector.exe 3060 injector.exe 3060 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 796 powershell.exe Token: SeDebugPrivilege 4064 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe Token: SeImpersonatePrivilege 4064 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe Token: SeDebugPrivilege 1876 powershell.exe Token: SeDebugPrivilege 2212 powershell.exe Token: SeDebugPrivilege 4592 powershell.exe Token: SeDebugPrivilege 4920 powershell.exe Token: SeDebugPrivilege 3580 powershell.exe Token: SeDebugPrivilege 2248 powershell.exe Token: SeSystemEnvironmentPrivilege 3512 csrss.exe Token: SeSecurityPrivilege 4424 sc.exe Token: SeSecurityPrivilege 4424 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4064 wrote to memory of 796 4064 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 77 PID 4064 wrote to memory of 796 4064 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 77 PID 4064 wrote to memory of 796 4064 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 77 PID 4224 wrote to memory of 1876 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 82 PID 4224 wrote to memory of 1876 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 82 PID 4224 wrote to memory of 1876 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 82 PID 4224 wrote to memory of 2504 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 84 PID 4224 wrote to memory of 2504 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 84 PID 2504 wrote to memory of 3020 2504 cmd.exe 86 PID 2504 wrote to memory of 3020 2504 cmd.exe 86 PID 4224 wrote to memory of 2212 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 87 PID 4224 wrote to memory of 2212 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 87 PID 4224 wrote to memory of 2212 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 87 PID 4224 wrote to memory of 4592 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 89 PID 4224 wrote to memory of 4592 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 89 PID 4224 wrote to memory of 4592 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 89 PID 4224 wrote to memory of 3512 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 91 PID 4224 wrote to memory of 3512 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 91 PID 4224 wrote to memory of 3512 4224 bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe 91 PID 3512 wrote to memory of 4920 3512 csrss.exe 92 PID 3512 wrote to memory of 4920 3512 csrss.exe 92 PID 3512 wrote to memory of 4920 3512 csrss.exe 92 PID 3512 wrote to memory of 3580 3512 csrss.exe 98 PID 3512 wrote to memory of 3580 3512 csrss.exe 98 PID 3512 wrote to memory of 3580 3512 csrss.exe 98 PID 3512 wrote to memory of 2248 3512 csrss.exe 100 PID 3512 wrote to memory of 2248 3512 csrss.exe 100 PID 3512 wrote to memory of 2248 3512 csrss.exe 100 PID 3512 wrote to memory of 3060 3512 csrss.exe 102 PID 3512 wrote to memory of 3060 3512 csrss.exe 102 PID 2628 wrote to memory of 3496 2628 windefender.exe 108 PID 2628 wrote to memory of 3496 2628 windefender.exe 108 PID 2628 wrote to memory of 3496 2628 windefender.exe 108 PID 3496 wrote to memory of 4424 3496 cmd.exe 109 PID 3496 wrote to memory of 4424 3496 cmd.exe 109 PID 3496 wrote to memory of 4424 3496 cmd.exe 109 -
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\bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe"C:\Users\Admin\AppData\Local\Temp\bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4064 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:796
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C:\Users\Admin\AppData\Local\Temp\bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.exe"C:\Users\Admin\AppData\Local\Temp\bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e.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:4224 -
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:1876
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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:2504 -
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:3020
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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:2212
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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:4592
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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.
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3512 -
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:4920
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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:3136
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:5000
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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:3580
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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:2248
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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:3060
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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:3112
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2628 -
C:\Windows\SysWOW64\cmd.execmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)5⤵
- Suspicious use of WriteProcessMemory
PID:3496 -
C:\Windows\SysWOW64\sc.exesc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)6⤵
- Launches sc.exe
- Suspicious use of AdjustPrivilegeToken
PID:4424
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2928
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
MD54e5f196024e2c18fc2a38f2b453f0761
SHA1f16b4337cafbfa2671dc7f437c269c5eec066e37
SHA256a99c3d3e43b4888e90bf01c1ee23fe90b1e78eb9b09f52afb5e57cd8a1fe4077
SHA51246285dd0936cc13a8b6494324f1e6343a49ca89e0914c1d5a369bea74e03a2e658db48d360fa4b14e8a0669cd43b0161f849be681f11d1ea72d3c29405e42c33
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD518584ea8728fbddbc07006348adc2e7d
SHA1dd8d884d96065d4907092088af572a7da5c8d1e4
SHA256f21c098f3aa1fc6bd3580a2c8f7f5edc1388a171b6d9a274a94d304ee4057a88
SHA5129f29d260a80f7b7438ddd15403517d4c51817f6d2b09138384c02ac43e4d7d73dec9376b6fd96359cb999f2ae754097834fbe2c126fa5162dd7c2f49b8ac9108
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD507ca3c9606f81f7b9ca21f61b083da7b
SHA174747418e4e530c6d08b6fb01105e25df88b9bbd
SHA25644b8f1a9e6c05c9b5ce2adee534a3684dace1e3a91cffdf087a3f0ca110a598e
SHA5129907a98f7dd498f8daa504e1ccfe7e1fc325829a519c90e5ab4a2e1b6e6148392ad50c6533257d220b1b93a1f63b0e479ea6e980a8659596d569912da6fb7567
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56b5dfff3e5636fe95dec72793c166c9e
SHA17d30a0e5cf5f9e4ae7fd4853c4eeb255ecdca8ca
SHA256564478be4de74a7fe20411c08ed4838bc118d7e6dac34db5dbc896082bc23c81
SHA5125423ffdb50da1c1263df6f62adfcefe742dceebf99de006ba4c570d20c96e0b4b497a9ce1d363994998e40951beee0a285d63ea25ca36cb82b531f9ee08a5b7c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53d7a851648131d2bb59a78fd2aa665f6
SHA1b878a2385d48380eeef8b711af3e3526383263f6
SHA256b404c72b131f7c0df7f311454de6f76a1bec135ec6ec5018b6c4cabcec90e9d4
SHA512cd546c1376051a169c053351c36fa2d2962434dac8e18ef34c5a5f5f9abdef7539ff9b9b60ce93b3d0802b69ccbd322001c6a689cbd6f4922c98dbf38121cb33
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Filesize
4.2MB
MD5436a1fb70bea35945745af874a7c434d
SHA1b27ba686882d11d96faa27908d4355ca90588ea5
SHA256bc95e8eac4e63e9acbbfa9985f8199bd949a7504fc9372aeed3eebd29018e09e
SHA51277d4f5ff7ceb38cc33b298e40373460018473da3bf126066baa7428b1629d7874e6f8a86343dcb0ac3a70fffb278ec5486e0fc907f4cb5dc22b5a506eb037cfe
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Filesize
1.9MB
MD54485946f805b7af14b5698f2f57e9dc9
SHA115479da1cacfae726f7e50a8c2127efdb08db526
SHA256c787580c1d429084633c379f24a5fbd07d5dd7973a0cff6400d1340d9775cd51
SHA512410a4dfa1dcd42a0737e67716e21b70ca59ed57a6bc38d61ec2b428411972d768d5bb5076d84c2079a21074f0ae0bb2edf1f2d3cb8b66a565582aefe74e8f922
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec