Analysis
-
max time kernel
149s -
max time network
113s -
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
b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe
Resource
win10v2004-20240226-en
General
-
Target
b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe
-
Size
4.2MB
-
MD5
e3fcaa3820d74f982d85be79a6709bf0
-
SHA1
2fc83c9a034523a6b91d621b5391e550908c3b9f
-
SHA256
b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651
-
SHA512
116dd9d1b666f32fa31f9650ffa1d08fc15a98c1a5db84248c68edacacbad2d5ab8fbfc4e815557bd65ef4e2c9622f95f0d121ad257e6a43f7fbc8e4960d0fb7
-
SSDEEP
98304:3amOmyh13YwSD+iffg9rOMOczucEEdNxQlfwo87Elwi0PG1g:3Ty8Jy4o9ecZxQhwo8IinPG1g
Malware Config
Signatures
-
Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral2/memory/2232-2-0x0000000003F10000-0x00000000047FB000-memory.dmp family_glupteba behavioral2/memory/2232-3-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2232-95-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2232-124-0x0000000003F10000-0x00000000047FB000-memory.dmp family_glupteba behavioral2/memory/2244-145-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2416-148-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2416-202-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2416-205-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2416-208-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2416-211-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2416-213-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2416-217-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2416-220-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2416-223-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2416-225-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2416-229-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2416-232-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2416-235-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 3656 netsh.exe -
Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid process 2416 csrss.exe 1524 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-891789021-684472942-1795878712-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Set value (str) \REGISTRY\USER\S-1-5-21-891789021-684472942-1795878712-1000\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 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 -
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:
b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe -
Drops file in Windows directory 2 IoCs
Processes:
b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exedescription ioc process File created C:\Windows\rss\csrss.exe b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe File opened for modification C:\Windows\rss b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.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 4888 schtasks.exe 656 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exeb40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.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,-841 = "Argentina Daylight Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time" b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exeb40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exepowershell.exeb40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 3028 powershell.exe 3028 powershell.exe 2232 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe 2232 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe 1108 powershell.exe 1108 powershell.exe 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe 1556 powershell.exe 1556 powershell.exe 2528 powershell.exe 2528 powershell.exe 2600 powershell.exe 2600 powershell.exe 2064 powershell.exe 2064 powershell.exe 1996 powershell.exe 1996 powershell.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 2416 csrss.exe 2416 csrss.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 2416 csrss.exe 2416 csrss.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe 1524 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
Processes:
powershell.exeb40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exedescription pid process Token: SeDebugPrivilege 3028 powershell.exe Token: SeDebugPrivilege 2232 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Token: SeImpersonatePrivilege 2232 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe Token: SeDebugPrivilege 1108 powershell.exe Token: SeDebugPrivilege 1556 powershell.exe Token: SeDebugPrivilege 2528 powershell.exe Token: SeDebugPrivilege 2600 powershell.exe Token: SeDebugPrivilege 2064 powershell.exe Token: SeDebugPrivilege 1996 powershell.exe Token: SeSystemEnvironmentPrivilege 2416 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exeb40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.execmd.execsrss.exedescription pid process target process PID 2232 wrote to memory of 3028 2232 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe powershell.exe PID 2232 wrote to memory of 3028 2232 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe powershell.exe PID 2232 wrote to memory of 3028 2232 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe powershell.exe PID 2244 wrote to memory of 1108 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe powershell.exe PID 2244 wrote to memory of 1108 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe powershell.exe PID 2244 wrote to memory of 1108 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe powershell.exe PID 2244 wrote to memory of 1584 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe cmd.exe PID 2244 wrote to memory of 1584 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe cmd.exe PID 1584 wrote to memory of 3656 1584 cmd.exe netsh.exe PID 1584 wrote to memory of 3656 1584 cmd.exe netsh.exe PID 2244 wrote to memory of 1556 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe powershell.exe PID 2244 wrote to memory of 1556 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe powershell.exe PID 2244 wrote to memory of 1556 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe powershell.exe PID 2244 wrote to memory of 2528 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe powershell.exe PID 2244 wrote to memory of 2528 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe powershell.exe PID 2244 wrote to memory of 2528 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe powershell.exe PID 2244 wrote to memory of 2416 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe csrss.exe PID 2244 wrote to memory of 2416 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe csrss.exe PID 2244 wrote to memory of 2416 2244 b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe csrss.exe PID 2416 wrote to memory of 2600 2416 csrss.exe powershell.exe PID 2416 wrote to memory of 2600 2416 csrss.exe powershell.exe PID 2416 wrote to memory of 2600 2416 csrss.exe powershell.exe PID 2416 wrote to memory of 2064 2416 csrss.exe powershell.exe PID 2416 wrote to memory of 2064 2416 csrss.exe powershell.exe PID 2416 wrote to memory of 2064 2416 csrss.exe powershell.exe PID 2416 wrote to memory of 1996 2416 csrss.exe powershell.exe PID 2416 wrote to memory of 1996 2416 csrss.exe powershell.exe PID 2416 wrote to memory of 1996 2416 csrss.exe powershell.exe PID 2416 wrote to memory of 1524 2416 csrss.exe injector.exe PID 2416 wrote to memory of 1524 2416 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\b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe"C:\Users\Admin\AppData\Local\Temp\b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
C:\Users\Admin\AppData\Local\Temp\b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.exe"C:\Users\Admin\AppData\Local\Temp\b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651.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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵
-
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
-
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
-
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
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v13
Persistence
Create or Modify System Process
1Windows Service
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Create or Modify System Process
1Windows Service
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_b5rv4xez.yyu.ps1Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
-
C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeFilesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.logFilesize
2KB
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-InteractiveFilesize
19KB
MD591e32b338335d5af496d95810382b98d
SHA169bd57196248d55a3fa843ad2cdd8b9f2a02fda2
SHA25698f1e848d535c8058bf9a756a9458f6c154ae72d1eb82e1420e3182fc6f58e35
SHA51296e048fd015b6b7d28e0e786f35a8d38d1ce8c0e178db3260b39250519a6fcf419393d8c699af017bf2fad8062b049f07533a521d278805ea1ecd8398538e6e7
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-InteractiveFilesize
19KB
MD509abfd319ccf8268576f0ffec46112f3
SHA1a5e03ca70306f883543fbddc1ee7830fce24a1a8
SHA256024e4b5a3e637ec707f861a4752e7c0a73887074416a660c6b8c2b691703cef0
SHA51229fe7b3b0bad55074a796102ca1a0b13b9fc65c562657af1bdec4a8d7f1bad5288f6a654e49bb2a8c99b1d567a45e1fde2d5d809f5135b284268f1673cbf645b
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-InteractiveFilesize
19KB
MD52de7e146028af826ff2c86a5ae206b95
SHA11c1703ed9cfee439655d3926e9f0bfa2a6d0429e
SHA25690aff1d308e2467d6c7ccbd83fdbc686702a4dfa8b0f0956c973383f5fa4711e
SHA512e0d44a7e7c7e9cd52133ab0753b111536b836a9782daaf1d8972e410d794d066cf443a32606855f4e60e4547f5a0cb9201aac8a48c0d2c65c9c2545a9b53f469
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-InteractiveFilesize
19KB
MD5fab6c752ec79551bdb0ca2b22ea32c74
SHA1d7d2fd565ab3756bfaab1231c5567e240e13437e
SHA2567ec2afd1fd9c7dffa017adb7162eaff5e63c8c835ca467ec027ddc0bedaadf89
SHA51290fb56db444219c4ec37b4d4fee578ae0c007298b12cb01cea607843b82648364174cde04ab808eb86ff3191393aec604bee1b65cc3af67e614946e09698cec6
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-InteractiveFilesize
19KB
MD5abf02167ece0bcf09592ec62c4c93cc3
SHA18c5c6bdf9df3ba0aef0a8b9d937db3e74f37edf1
SHA256f83fbbd2d0b08920753e490b6a77e7ba30d090aad523037ff7703a56a92ccc69
SHA5123aa871789f18513932b3c22ed2f661bd2397313d71fd79e7c687869bfda2272660106601871494f76fb539a8eda16ca3724f87c9e735847add2b6806633518dd
-
C:\Windows\rss\csrss.exeFilesize
4.2MB
MD5e3fcaa3820d74f982d85be79a6709bf0
SHA12fc83c9a034523a6b91d621b5391e550908c3b9f
SHA256b40db341633ed3978b0c57412e0a51a3afc1d1ab49dc655f101ff37ab4a9f651
SHA512116dd9d1b666f32fa31f9650ffa1d08fc15a98c1a5db84248c68edacacbad2d5ab8fbfc4e815557bd65ef4e2c9622f95f0d121ad257e6a43f7fbc8e4960d0fb7
-
memory/1108-72-0x0000000007000000-0x0000000007015000-memory.dmpFilesize
84KB
-
memory/1108-59-0x0000000005580000-0x00000000058D7000-memory.dmpFilesize
3.3MB
-
memory/1108-71-0x0000000006FB0000-0x0000000006FC1000-memory.dmpFilesize
68KB
-
memory/1108-70-0x0000000006CA0000-0x0000000006D44000-memory.dmpFilesize
656KB
-
memory/1108-61-0x0000000070300000-0x0000000070657000-memory.dmpFilesize
3.3MB
-
memory/1108-60-0x0000000070180000-0x00000000701CC000-memory.dmpFilesize
304KB
-
memory/1556-86-0x0000000070390000-0x00000000706E7000-memory.dmpFilesize
3.3MB
-
memory/1556-85-0x0000000070180000-0x00000000701CC000-memory.dmpFilesize
304KB
-
memory/1996-183-0x0000000006090000-0x00000000063E7000-memory.dmpFilesize
3.3MB
-
memory/1996-185-0x00000000700A0000-0x00000000700EC000-memory.dmpFilesize
304KB
-
memory/1996-186-0x00000000702F0000-0x0000000070647000-memory.dmpFilesize
3.3MB
-
memory/2064-171-0x0000000007AA0000-0x0000000007B44000-memory.dmpFilesize
656KB
-
memory/2064-173-0x0000000006670000-0x0000000006685000-memory.dmpFilesize
84KB
-
memory/2064-157-0x00000000062F0000-0x0000000006647000-memory.dmpFilesize
3.3MB
-
memory/2064-159-0x0000000006A00000-0x0000000006A4C000-memory.dmpFilesize
304KB
-
memory/2064-161-0x00000000700A0000-0x00000000700EC000-memory.dmpFilesize
304KB
-
memory/2064-162-0x0000000070220000-0x0000000070577000-memory.dmpFilesize
3.3MB
-
memory/2064-172-0x0000000007DE0000-0x0000000007DF1000-memory.dmpFilesize
68KB
-
memory/2232-96-0x00000000020E0000-0x00000000024E4000-memory.dmpFilesize
4.0MB
-
memory/2232-2-0x0000000003F10000-0x00000000047FB000-memory.dmpFilesize
8.9MB
-
memory/2232-124-0x0000000003F10000-0x00000000047FB000-memory.dmpFilesize
8.9MB
-
memory/2232-95-0x0000000000400000-0x0000000001DFB000-memory.dmpFilesize
26.0MB
-
memory/2232-1-0x00000000020E0000-0x00000000024E4000-memory.dmpFilesize
4.0MB
-
memory/2232-3-0x0000000000400000-0x0000000001DFB000-memory.dmpFilesize
26.0MB
-
memory/2244-145-0x0000000000400000-0x0000000001DFB000-memory.dmpFilesize
26.0MB
-
memory/2416-229-0x0000000000400000-0x0000000001DFB000-memory.dmpFilesize
26.0MB
-
memory/2416-208-0x0000000000400000-0x0000000001DFB000-memory.dmpFilesize
26.0MB
-
memory/2416-220-0x0000000000400000-0x0000000001DFB000-memory.dmpFilesize
26.0MB
-
memory/2416-223-0x0000000000400000-0x0000000001DFB000-memory.dmpFilesize
26.0MB
-
memory/2416-205-0x0000000000400000-0x0000000001DFB000-memory.dmpFilesize
26.0MB
-
memory/2416-225-0x0000000000400000-0x0000000001DFB000-memory.dmpFilesize
26.0MB
-
memory/2416-217-0x0000000000400000-0x0000000001DFB000-memory.dmpFilesize
26.0MB
-
memory/2416-232-0x0000000000400000-0x0000000001DFB000-memory.dmpFilesize
26.0MB
-
memory/2416-213-0x0000000000400000-0x0000000001DFB000-memory.dmpFilesize
26.0MB
-
memory/2416-202-0x0000000000400000-0x0000000001DFB000-memory.dmpFilesize
26.0MB
-
memory/2416-211-0x0000000000400000-0x0000000001DFB000-memory.dmpFilesize
26.0MB
-
memory/2416-235-0x0000000000400000-0x0000000001DFB000-memory.dmpFilesize
26.0MB
-
memory/2416-148-0x0000000000400000-0x0000000001DFB000-memory.dmpFilesize
26.0MB
-
memory/2528-109-0x0000000070320000-0x0000000070677000-memory.dmpFilesize
3.3MB
-
memory/2528-108-0x0000000070180000-0x00000000701CC000-memory.dmpFilesize
304KB
-
memory/2528-106-0x0000000006090000-0x00000000063E7000-memory.dmpFilesize
3.3MB
-
memory/2600-135-0x0000000070390000-0x00000000706E7000-memory.dmpFilesize
3.3MB
-
memory/2600-134-0x0000000070180000-0x00000000701CC000-memory.dmpFilesize
304KB
-
memory/3028-10-0x0000000005A90000-0x0000000005AF6000-memory.dmpFilesize
408KB
-
memory/3028-8-0x0000000005140000-0x0000000005162000-memory.dmpFilesize
136KB
-
memory/3028-37-0x0000000007460000-0x0000000007504000-memory.dmpFilesize
656KB
-
memory/3028-9-0x0000000005A20000-0x0000000005A86000-memory.dmpFilesize
408KB
-
memory/3028-6-0x0000000002B10000-0x0000000002B20000-memory.dmpFilesize
64KB
-
memory/3028-19-0x0000000005B00000-0x0000000005E57000-memory.dmpFilesize
3.3MB
-
memory/3028-20-0x0000000005FD0000-0x0000000005FEE000-memory.dmpFilesize
120KB
-
memory/3028-21-0x0000000006070000-0x00000000060BC000-memory.dmpFilesize
304KB
-
memory/3028-22-0x0000000006580000-0x00000000065C6000-memory.dmpFilesize
280KB
-
memory/3028-23-0x000000007FA20000-0x000000007FA30000-memory.dmpFilesize
64KB
-
memory/3028-25-0x0000000070180000-0x00000000701CC000-memory.dmpFilesize
304KB
-
memory/3028-7-0x00000000051C0000-0x00000000057EA000-memory.dmpFilesize
6.2MB
-
memory/3028-5-0x0000000073F10000-0x00000000746C1000-memory.dmpFilesize
7.7MB
-
memory/3028-4-0x0000000002B20000-0x0000000002B56000-memory.dmpFilesize
216KB
-
memory/3028-24-0x00000000073E0000-0x0000000007414000-memory.dmpFilesize
208KB
-
memory/3028-26-0x0000000070390000-0x00000000706E7000-memory.dmpFilesize
3.3MB
-
memory/3028-36-0x0000000002B10000-0x0000000002B20000-memory.dmpFilesize
64KB
-
memory/3028-35-0x0000000007440000-0x000000000745E000-memory.dmpFilesize
120KB
-
memory/3028-49-0x0000000073F10000-0x00000000746C1000-memory.dmpFilesize
7.7MB
-
memory/3028-46-0x00000000076C0000-0x00000000076C8000-memory.dmpFilesize
32KB
-
memory/3028-45-0x00000000076A0000-0x00000000076BA000-memory.dmpFilesize
104KB
-
memory/3028-44-0x0000000007650000-0x0000000007665000-memory.dmpFilesize
84KB
-
memory/3028-43-0x0000000007640000-0x000000000764E000-memory.dmpFilesize
56KB
-
memory/3028-42-0x00000000075F0000-0x0000000007601000-memory.dmpFilesize
68KB
-
memory/3028-41-0x00000000076E0000-0x0000000007776000-memory.dmpFilesize
600KB
-
memory/3028-40-0x00000000075D0000-0x00000000075DA000-memory.dmpFilesize
40KB
-
memory/3028-39-0x0000000007590000-0x00000000075AA000-memory.dmpFilesize
104KB
-
memory/3028-38-0x0000000007BD0000-0x000000000824A000-memory.dmpFilesize
6.5MB