Analysis
-
max time kernel
149s -
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
10-04-2024 12:44
Static task
static1
Behavioral task
behavioral1
Sample
c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe
Resource
win10v2004-20240226-en
General
-
Target
c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe
-
Size
4.2MB
-
MD5
fcc0ebbf9e2b6540f0726407bb87ad2b
-
SHA1
3133c7b5d6cd99f00b46325802b1cffb57cd7440
-
SHA256
c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427
-
SHA512
157507a3531060e7efd0fb0c002117b3593c2c9ff80b7d0a34b321f7ce7796a70e825894489d949af4e240564e6ccbae17b750d1f5e600b35a5076a48f852cc8
-
SSDEEP
98304:vhG1VYBfxpxKKiz/C+7OjTeqkjM5LSA+gccB:gyBfxpAKimPeROSAj7
Malware Config
Signatures
-
Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/3236-2-0x0000000003150000-0x0000000003A3B000-memory.dmp family_glupteba behavioral2/memory/3236-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3236-51-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3236-53-0x0000000003150000-0x0000000003A3B000-memory.dmp family_glupteba behavioral2/memory/4864-55-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4864-118-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4864-147-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3340-241-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3340-250-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3340-255-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3340-258-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3340-261-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3340-263-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3340-266-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3340-270-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3340-273-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3340-275-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3340-278-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3124 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3340 csrss.exe 4028 injector.exe 4152 windefender.exe 3748 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a810-246.dat upx behavioral2/memory/4152-252-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3748-256-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3748-262-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4280069375-290121026-380765049-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Set value (str) \REGISTRY\USER\S-1-5-21-4280069375-290121026-380765049-1000\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.
-
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 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 -
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 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe File created C:\Windows\rss\csrss.exe c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe File created 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 1416 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 3168 schtasks.exe 2120 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process 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,-32 = "Mid-Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-592 = "Malay Peninsula Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates 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,-384 = "Namibia Daylight Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs 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\22\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2771 = "Omsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1042 = "Ulaanbaatar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-202 = "US Mountain 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" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-384 = "Namibia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-332 = "E. Europe Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\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\@tzres.dll,-1912 = "Russia TZ 10 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight 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" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-131 = "US Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2872 = "Magallanes Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-212 = "Pacific Standard 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\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.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\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-751 = "Tonga Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-931 = "Coordinated Universal Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-172 = "Central Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time" windefender.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" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.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\22\52C64B7E\@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2941 = "Sao Tome Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1502 = "Turkey Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4320 powershell.exe 4320 powershell.exe 3236 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 3236 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 1964 powershell.exe 1964 powershell.exe 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 2996 powershell.exe 2996 powershell.exe 2368 powershell.exe 2368 powershell.exe 4080 powershell.exe 4080 powershell.exe 2276 powershell.exe 2276 powershell.exe 2812 powershell.exe 2812 powershell.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe 3340 csrss.exe 3340 csrss.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe 3340 csrss.exe 3340 csrss.exe 4028 injector.exe 4028 injector.exe 3340 csrss.exe 3340 csrss.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe 4028 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4320 powershell.exe Token: SeDebugPrivilege 3236 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Token: SeImpersonatePrivilege 3236 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Token: SeDebugPrivilege 1964 powershell.exe Token: SeDebugPrivilege 2996 powershell.exe Token: SeDebugPrivilege 2368 powershell.exe Token: SeDebugPrivilege 4080 powershell.exe Token: SeDebugPrivilege 2276 powershell.exe Token: SeDebugPrivilege 2812 powershell.exe Token: SeSystemEnvironmentPrivilege 3340 csrss.exe Token: SeSecurityPrivilege 1416 sc.exe Token: SeSecurityPrivilege 1416 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3236 wrote to memory of 4320 3236 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 78 PID 3236 wrote to memory of 4320 3236 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 78 PID 3236 wrote to memory of 4320 3236 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 78 PID 4864 wrote to memory of 1964 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 83 PID 4864 wrote to memory of 1964 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 83 PID 4864 wrote to memory of 1964 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 83 PID 4864 wrote to memory of 4064 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 85 PID 4864 wrote to memory of 4064 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 85 PID 4064 wrote to memory of 3124 4064 cmd.exe 87 PID 4064 wrote to memory of 3124 4064 cmd.exe 87 PID 4864 wrote to memory of 2996 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 88 PID 4864 wrote to memory of 2996 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 88 PID 4864 wrote to memory of 2996 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 88 PID 4864 wrote to memory of 2368 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 90 PID 4864 wrote to memory of 2368 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 90 PID 4864 wrote to memory of 2368 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 90 PID 4864 wrote to memory of 3340 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 92 PID 4864 wrote to memory of 3340 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 92 PID 4864 wrote to memory of 3340 4864 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 92 PID 3340 wrote to memory of 4080 3340 csrss.exe 93 PID 3340 wrote to memory of 4080 3340 csrss.exe 93 PID 3340 wrote to memory of 4080 3340 csrss.exe 93 PID 3340 wrote to memory of 2276 3340 csrss.exe 98 PID 3340 wrote to memory of 2276 3340 csrss.exe 98 PID 3340 wrote to memory of 2276 3340 csrss.exe 98 PID 3340 wrote to memory of 2812 3340 csrss.exe 101 PID 3340 wrote to memory of 2812 3340 csrss.exe 101 PID 3340 wrote to memory of 2812 3340 csrss.exe 101 PID 3340 wrote to memory of 4028 3340 csrss.exe 103 PID 3340 wrote to memory of 4028 3340 csrss.exe 103 PID 4152 wrote to memory of 4064 4152 windefender.exe 109 PID 4152 wrote to memory of 4064 4152 windefender.exe 109 PID 4152 wrote to memory of 4064 4152 windefender.exe 109 PID 4064 wrote to memory of 1416 4064 cmd.exe 110 PID 4064 wrote to memory of 1416 4064 cmd.exe 110 PID 4064 wrote to memory of 1416 4064 cmd.exe 110 -
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
-
C:\Users\Admin\AppData\Local\Temp\c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe"C:\Users\Admin\AppData\Local\Temp\c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3236 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4320
-
-
C:\Users\Admin\AppData\Local\Temp\c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe"C:\Users\Admin\AppData\Local\Temp\c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.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:4864 -
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:1964
-
-
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:4064 -
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:3124
-
-
-
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:2996
-
-
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:2368
-
-
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:3340 -
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:4080
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:3168
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:384
-
-
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:2276
-
-
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:2812
-
-
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:4028
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:2120
-
-
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4152 -
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:4064 -
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:1416
-
-
-
-
-
-
C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3748
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
Loading Replay Monitor...
Downloads
-
Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
-
Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53a3fb9ff8fd1dcbc2e30ecd112ae3065
SHA17f90e2f5d27eff992947de994ca732d53a36f92e
SHA256ed0868cb2d6fd0b9a9331185d56772398938ca1a105540ebc0bea2ab5231280e
SHA5127cbeca5794f7272c0e3175dff2f6050d2201cef4784086f19e4f52bca39e749e32e7b12a4b2ee1e55fc7983f227c1e135dfbd4ae5c2c71a438dcc5a831ef9c1b
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5af92a56644ddff62fbde893c0bfc0353
SHA16243ea51c99ea5441a8634d26f4b68a44a90028a
SHA256b9857847673df66c82e4b21778579ce923eec98f659c99209067d8066d59589d
SHA512c6bbcf3edef0caef693933fcc749523437d7719e948efe7d2f63d202b70a30f41dc5fa6c12cf8910dfed495f76a02f6c5ca131d2c698858c0bc52c01e29c1c34
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a67d83e675d8b2b26c70fd4ed10a7a9b
SHA12f022eb2922559f9fc0c83a6c5368606848da8a8
SHA256444a726d0798ccf8a7d38fa721298333c8fb337f390990ac7f70f7cf2901b692
SHA512488149a86e8a1eaef15424837b5c22a549ffd83f07503a8f735a77463eb33e917754e2ce63fd00d135760af998825241fbeb8f843ea1b83c86940dea4c0fb40a
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a1d791b5efc846a629a9af09ae3aa375
SHA158a5293e73142fbbf737e3250c872fcf8077923d
SHA256998596a6a00b5482e44ac8e014a08ab0d902fecea6d8cd6fb75cc5bad781ec8d
SHA512e0322934c2ab11f08947d6ab024f872c5b1edce23f6fd4fe0ab6b6f2b6fd928585b26cd1377b66779133d5083eccd7314309db3095d84720177742372f8d1221
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59b74f45a0ed53c6a6cb561076731a4ad
SHA1d58ad8024826982a045fca557c239794852c82bd
SHA2560fb78de4f0e5af441da2b05cc505c2df7bf15dbf1b5be452dfac1740a09f1bf9
SHA51283db06bc29ceace207995b9879f45b913b7a90413c7235573f9194fe2bd2676018ad78dbd3372f3944d6786edfe13d439a8160bbcc32a9e89f6de870beb04cc1
-
Filesize
4.2MB
MD5fcc0ebbf9e2b6540f0726407bb87ad2b
SHA13133c7b5d6cd99f00b46325802b1cffb57cd7440
SHA256c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427
SHA512157507a3531060e7efd0fb0c002117b3593c2c9ff80b7d0a34b321f7ce7796a70e825894489d949af4e240564e6ccbae17b750d1f5e600b35a5076a48f852cc8
-
Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec