Analysis
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max time kernel
150s -
max time network
130s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
03-05-2024 16:00
Static task
static1
Behavioral task
behavioral1
Sample
4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe
Resource
win10v2004-20240419-en
General
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Target
4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe
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Size
4.2MB
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MD5
5c7b4c63b5473cbb68ce7321aefba401
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SHA1
9f159d2abe3d45f0ffff83ca716abbfba6fc61d1
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SHA256
4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21
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SHA512
07a44a4cc749d001c36d389dd45c9e82db3fd8ead1fa23c39c4fddc194362cd15b595b000866b09b87b70a06878e0708bea0dc1bfd59f1e3d859d05851101d79
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SSDEEP
98304:MOu+A3mszPNCTWVPdqXkycsRVtgk/ku+B5RmG8:MnDmmPNAkycYTF8zI
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/3280-2-0x0000000003F10000-0x00000000047FB000-memory.dmp family_glupteba behavioral2/memory/3280-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3280-69-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/3280-115-0x0000000003F10000-0x00000000047FB000-memory.dmp family_glupteba behavioral2/memory/2572-114-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/3280-142-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2572-179-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2528-192-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2528-208-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2528-212-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2528-215-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2528-219-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2528-223-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2528-228-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2528-231-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2528-235-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2528-239-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2528-242-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2528-247-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3392 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2528 csrss.exe 3592 injector.exe 2640 windefender.exe 3600 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa36-201.dat upx behavioral2/memory/2640-202-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2640-206-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3600-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3600-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2994005945-4089876968-1367784197-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Set value (str) \REGISTRY\USER\S-1-5-21-2994005945-4089876968-1367784197-1000\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.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.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 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe File created C:\Windows\rss\csrss.exe 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.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 1688 sc.exe -
pid Process 4144 powershell.exe 2120 powershell.exe 1084 powershell.exe 3552 powershell.exe 1048 powershell.exe 740 powershell.exe 652 powershell.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 4768 4144 WerFault.exe 82 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2732 schtasks.exe 4564 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-132 = "US Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs 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\@tzres.dll,-2411 = "Marquesas Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-202 = "US Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.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,-652 = "AUS Central Standard Time" 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time" 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 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\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.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\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs 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\@tzres.dll,-105 = "Central Brazilian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2372 = "Easter Island Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-252 = "Dateline Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-752 = "Tonga Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-891 = "Morocco Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4144 powershell.exe 4144 powershell.exe 3280 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 3280 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 2120 powershell.exe 2120 powershell.exe 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 1084 powershell.exe 1084 powershell.exe 3552 powershell.exe 3552 powershell.exe 1048 powershell.exe 1048 powershell.exe 740 powershell.exe 740 powershell.exe 652 powershell.exe 652 powershell.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe 2528 csrss.exe 2528 csrss.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe 2528 csrss.exe 2528 csrss.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe 2528 csrss.exe 2528 csrss.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe 3592 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4144 powershell.exe Token: SeDebugPrivilege 3280 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Token: SeImpersonatePrivilege 3280 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe Token: SeDebugPrivilege 2120 powershell.exe Token: SeDebugPrivilege 1084 powershell.exe Token: SeDebugPrivilege 3552 powershell.exe Token: SeDebugPrivilege 1048 powershell.exe Token: SeDebugPrivilege 740 powershell.exe Token: SeDebugPrivilege 652 powershell.exe Token: SeSystemEnvironmentPrivilege 2528 csrss.exe Token: SeSecurityPrivilege 1688 sc.exe Token: SeSecurityPrivilege 1688 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3280 wrote to memory of 4144 3280 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 82 PID 3280 wrote to memory of 4144 3280 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 82 PID 3280 wrote to memory of 4144 3280 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 82 PID 2572 wrote to memory of 2120 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 90 PID 2572 wrote to memory of 2120 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 90 PID 2572 wrote to memory of 2120 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 90 PID 2572 wrote to memory of 1116 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 92 PID 2572 wrote to memory of 1116 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 92 PID 1116 wrote to memory of 3392 1116 cmd.exe 94 PID 1116 wrote to memory of 3392 1116 cmd.exe 94 PID 2572 wrote to memory of 1084 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 95 PID 2572 wrote to memory of 1084 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 95 PID 2572 wrote to memory of 1084 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 95 PID 2572 wrote to memory of 3552 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 97 PID 2572 wrote to memory of 3552 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 97 PID 2572 wrote to memory of 3552 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 97 PID 2572 wrote to memory of 2528 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 99 PID 2572 wrote to memory of 2528 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 99 PID 2572 wrote to memory of 2528 2572 4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe 99 PID 2528 wrote to memory of 1048 2528 csrss.exe 100 PID 2528 wrote to memory of 1048 2528 csrss.exe 100 PID 2528 wrote to memory of 1048 2528 csrss.exe 100 PID 2528 wrote to memory of 740 2528 csrss.exe 106 PID 2528 wrote to memory of 740 2528 csrss.exe 106 PID 2528 wrote to memory of 740 2528 csrss.exe 106 PID 2528 wrote to memory of 652 2528 csrss.exe 108 PID 2528 wrote to memory of 652 2528 csrss.exe 108 PID 2528 wrote to memory of 652 2528 csrss.exe 108 PID 2528 wrote to memory of 3592 2528 csrss.exe 110 PID 2528 wrote to memory of 3592 2528 csrss.exe 110 PID 2640 wrote to memory of 1856 2640 windefender.exe 116 PID 2640 wrote to memory of 1856 2640 windefender.exe 116 PID 2640 wrote to memory of 1856 2640 windefender.exe 116 PID 1856 wrote to memory of 1688 1856 cmd.exe 117 PID 1856 wrote to memory of 1688 1856 cmd.exe 117 PID 1856 wrote to memory of 1688 1856 cmd.exe 117 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe"C:\Users\Admin\AppData\Local\Temp\4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3280 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4144 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4144 -s 25443⤵
- Program crash
PID:4768
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C:\Users\Admin\AppData\Local\Temp\4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.exe"C:\Users\Admin\AppData\Local\Temp\4a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21.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:2572 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2120
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C:\Windows\system32\cmd.exeC:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"3⤵
- Suspicious use of WriteProcessMemory
PID:1116 -
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:3392
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1084
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3552
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2528 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1048
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:2732
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4996
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:740
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:652
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeC:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:3592
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:4564
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2640 -
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:1856 -
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:1688
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4144 -ip 41441⤵PID:4404
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3600
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52800b217881e6becb68097e31340a5be
SHA197334a84635444ce1312f78d1c174e7c629c5a10
SHA25615b5f1fffa6726f9490c1b4ea6aef26bc0da537f4f371cabd8d167042ae732ce
SHA5126e428c6e022ad8a2a5becc309045fea0defa8a3d1e51073a1dcad653538250a78a23cf215380c2bddad8c704309e39729c098bba0b14718f6c8bb4fbca544227
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d57fd445ed9317f54c433e9358b71e22
SHA18b5224112139f8380e4a7b37c9f1add60d805635
SHA256464f0cb4fec379402a6345a0ad12f7050be6d2573802eedabe30b66f07cc0b71
SHA512f25d10614486328e0d8fa668a0153ab5b37e99d41eb5ea94d7e5cab766e2611185a63b59dc47589358c3ebac18e1094c8b709208b3bc09116cb30b179944f9f7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fed52f90d77db4db58e133216c1cc5d3
SHA1e86869356bc282340927854717c7432137d90aef
SHA256c61c35ceb597f3ce9ede2c3b20e536c90c63be83b597def90abd34bd29fbd500
SHA512fea397dbc14ce9875bd98a493cdd33b38f4c72c037a2c567857c6e2181440473fec9eb736c8d720bb2e4b3b443b315fdabc6dff89b906908740df2ce5a89e7d4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f90ff5626eb839347fc98de21ada88e7
SHA14e480bee6bf53873db244e1626d5a77d26430eb7
SHA256283f80d673a4991fb5e51dc98edf8c530e1ab89a759211237704d12d2e3cfdc7
SHA512e493354c9fa78c983d63147215373559887c339f7802f2a071fffd2b7a82d2c594a5da7eb1997d756bca7005031d8934c7fcfeea5b39cefc5319a3d1288b4b2f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50c0168b4323c09e478f3cdd074fadfbd
SHA13e5eaf3856e89372a804a4284757e6d19e3b0266
SHA256e8218ba4a72f866f78e31b40608461f1dcc57b62dbe2dcc60f5594d8f39d5d7c
SHA512071b599003544d467225d4722773938a0f3ad030fa954c800285bb6a000966a145220df0367b56684ec5f429021e5ef30b2f990cdd06b3182e079d50a83e10f8
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Filesize
4.2MB
MD55c7b4c63b5473cbb68ce7321aefba401
SHA19f159d2abe3d45f0ffff83ca716abbfba6fc61d1
SHA2564a36eb98e99da7a0e4c313470804e06654663881eda127e5e4a16b96e123be21
SHA51207a44a4cc749d001c36d389dd45c9e82db3fd8ead1fa23c39c4fddc194362cd15b595b000866b09b87b70a06878e0708bea0dc1bfd59f1e3d859d05851101d79
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec