Analysis
-
max time kernel
150s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
27-04-2024 22:28
Static task
static1
Behavioral task
behavioral1
Sample
3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe
Resource
win10v2004-20240426-en
General
-
Target
3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe
-
Size
4.2MB
-
MD5
93fb5ae8685336cfd22b79d8ec5792a6
-
SHA1
548fc770b4ee004d89e7eb40b19d93388741a5c8
-
SHA256
3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc
-
SHA512
b6f6b5db423ceefe59f8588078fe9299a2a697c39ddd52a56d6cc9db452960dd1787016b7b7f2eb2601543b0fe9378f9db93736a0688b013a3f192a30cd0d246
-
SSDEEP
98304:famOmyh13YwSD+iffg9rOMOczucEEdNxQlfwo87Elwi0PG15:fTy8Jy4o9ecZxQhwo8IinPG15
Malware Config
Signatures
-
Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral2/memory/1040-2-0x0000000003F40000-0x000000000482B000-memory.dmp family_glupteba behavioral2/memory/1040-3-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/1040-107-0x0000000003F40000-0x000000000482B000-memory.dmp family_glupteba behavioral2/memory/1040-105-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/3200-122-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/492-147-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/492-199-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/492-201-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/492-203-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/492-205-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/492-207-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/492-209-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/492-211-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/492-213-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/492-215-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/492-217-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/492-219-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/492-221-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 4220 netsh.exe -
Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid process 492 csrss.exe 1560 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-734199974-1358367239-436541239-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Set value (str) \REGISTRY\USER\S-1-5-21-734199974-1358367239-436541239-1000\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.
Processes:
csrss.exedescription ioc process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe -
Drops file in Windows directory 2 IoCs
Processes:
3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exedescription ioc process File opened for modification C:\Windows\rss 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe File created C:\Windows\rss\csrss.exe 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 1428 schtasks.exe 4756 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.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 (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exepowershell.exe3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 4064 powershell.exe 4064 powershell.exe 1040 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe 1040 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe 2992 powershell.exe 2992 powershell.exe 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe 1380 powershell.exe 1380 powershell.exe 3104 powershell.exe 3104 powershell.exe 3328 powershell.exe 3328 powershell.exe 3744 powershell.exe 3744 powershell.exe 3416 powershell.exe 3416 powershell.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 492 csrss.exe 492 csrss.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 492 csrss.exe 492 csrss.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe 1560 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
Processes:
powershell.exe3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exedescription pid process Token: SeDebugPrivilege 4064 powershell.exe Token: SeDebugPrivilege 1040 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Token: SeImpersonatePrivilege 1040 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe Token: SeDebugPrivilege 2992 powershell.exe Token: SeDebugPrivilege 1380 powershell.exe Token: SeDebugPrivilege 3104 powershell.exe Token: SeDebugPrivilege 3328 powershell.exe Token: SeDebugPrivilege 3744 powershell.exe Token: SeDebugPrivilege 3416 powershell.exe Token: SeSystemEnvironmentPrivilege 492 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.execmd.execsrss.exedescription pid process target process PID 1040 wrote to memory of 4064 1040 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe powershell.exe PID 1040 wrote to memory of 4064 1040 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe powershell.exe PID 1040 wrote to memory of 4064 1040 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe powershell.exe PID 3200 wrote to memory of 2992 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe powershell.exe PID 3200 wrote to memory of 2992 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe powershell.exe PID 3200 wrote to memory of 2992 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe powershell.exe PID 3200 wrote to memory of 1448 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe cmd.exe PID 3200 wrote to memory of 1448 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe cmd.exe PID 1448 wrote to memory of 4220 1448 cmd.exe netsh.exe PID 1448 wrote to memory of 4220 1448 cmd.exe netsh.exe PID 3200 wrote to memory of 1380 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe powershell.exe PID 3200 wrote to memory of 1380 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe powershell.exe PID 3200 wrote to memory of 1380 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe powershell.exe PID 3200 wrote to memory of 3104 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe powershell.exe PID 3200 wrote to memory of 3104 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe powershell.exe PID 3200 wrote to memory of 3104 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe powershell.exe PID 3200 wrote to memory of 492 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe csrss.exe PID 3200 wrote to memory of 492 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe csrss.exe PID 3200 wrote to memory of 492 3200 3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe csrss.exe PID 492 wrote to memory of 3328 492 csrss.exe powershell.exe PID 492 wrote to memory of 3328 492 csrss.exe powershell.exe PID 492 wrote to memory of 3328 492 csrss.exe powershell.exe PID 492 wrote to memory of 3744 492 csrss.exe powershell.exe PID 492 wrote to memory of 3744 492 csrss.exe powershell.exe PID 492 wrote to memory of 3744 492 csrss.exe powershell.exe PID 492 wrote to memory of 3416 492 csrss.exe powershell.exe PID 492 wrote to memory of 3416 492 csrss.exe powershell.exe PID 492 wrote to memory of 3416 492 csrss.exe powershell.exe PID 492 wrote to memory of 1560 492 csrss.exe injector.exe PID 492 wrote to memory of 1560 492 csrss.exe injector.exe -
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\3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe"C:\Users\Admin\AppData\Local\Temp\3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1040 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4064
-
-
C:\Users\Admin\AppData\Local\Temp\3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.exe"C:\Users\Admin\AppData\Local\Temp\3fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc.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:3200 -
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:2992
-
-
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:1448 -
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:4220
-
-
-
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:1380
-
-
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:3104
-
-
C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:492 -
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:3328
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:1428
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1892
-
-
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:3744
-
-
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:3416
-
-
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:1560
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:4756
-
-
-
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
MD56d38e3dc593b5c4278b36ddd42026ba4
SHA1c3f9dc6b5a87ba58be05432e2e7fc64108258683
SHA2561b20d0fa22cd38eb1e18649cb08dc26a4c2b1e668ff96db2ed26d9b70b279446
SHA512c9a7045c92b056f1923b4da2de5969eb9ea94d62bbc54e1fce35d8837a996ebc59554992b0a19af50199a4a7eb47b5f6f6b3541deafebd5f1293f18cee256232
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD544151a837fd7a73cbe07557c383fbb59
SHA1f2facfaafc8f663b563972dcd4d330a399705687
SHA2565f60fab1cf4f7038816ae5ed62a16a0749737b21a328eb2381a428053d49ed48
SHA51247bb39cee67f940da682337f523c2be7025a276c78322ed62aac6642a34498ec6ec995e2d6915733c47faf9675165fde7bd91be5b287233b84ee5b846632292a
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD583c3704258019b7bfe42e5fdf83b8b03
SHA11bb5482cb02a598495388aa9c701cdf61fe8f137
SHA25632b296b136aee05371a5a1a67d4205d513c6a8f035115a5ec67e2886fbc7238b
SHA512d72a49ce03a7b871a383679a0f526eec4935ef59f1af3722ad7ec1e9fc6bf6d8749f59ebeb3fcdd7c65b689dba4e3a958f35e1c55ad957cad7fddf1fa770647a
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53f4b1dc2e6e3132ae908c5ddcaab986d
SHA1fb04ab00ef5ffaa132a0eae02d0504953baa6d34
SHA256c167807afef60eb34150a345e6fc0976343051cdb3d3543a1024c6738fabe03b
SHA512fd6b5f3478fee82f3ea4253dd6f231b86002302e314744f6d24e35929f77525ab3dfe24e1877baf5065191e82f1ce49422deeb704039e4c84a784d4875ba0099
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f23f85ddd260c3588c3250a261ba0995
SHA13e8708a8ece34e3ab09fba91391b3902b5c6fda1
SHA25672b50f6e01d467dbcd780e01f4565ecd1122469cf2e2a3aa0976c4f7b33d3ed0
SHA512e123c88ee2096536b553a4affb1a650507b363862136e6416699d62d3663adb82eec5f317faa5629c18d4869fe0a6e8bb8c9e7019b40afc3658a1edf2e41a19d
-
Filesize
4.2MB
MD593fb5ae8685336cfd22b79d8ec5792a6
SHA1548fc770b4ee004d89e7eb40b19d93388741a5c8
SHA2563fe0cb3473ac1e2c1358fd008bf7e4d53008b25aedeb31d17efe3e7ea03670fc
SHA512b6f6b5db423ceefe59f8588078fe9299a2a697c39ddd52a56d6cc9db452960dd1787016b7b7f2eb2601543b0fe9378f9db93736a0688b013a3f192a30cd0d246