Analysis
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max time kernel
171s -
max time network
192s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
10-04-2024 12:44
Static task
static1
Behavioral task
behavioral1
Sample
c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe
Resource
win10v2004-20240226-en
General
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Target
c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe
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Size
4.2MB
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MD5
fcc0ebbf9e2b6540f0726407bb87ad2b
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SHA1
3133c7b5d6cd99f00b46325802b1cffb57cd7440
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SHA256
c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427
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SHA512
157507a3531060e7efd0fb0c002117b3593c2c9ff80b7d0a34b321f7ce7796a70e825894489d949af4e240564e6ccbae17b750d1f5e600b35a5076a48f852cc8
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SSDEEP
98304:vhG1VYBfxpxKKiz/C+7OjTeqkjM5LSA+gccB:gyBfxpAKimPeROSAj7
Malware Config
Signatures
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Glupteba payload 15 IoCs
resource yara_rule behavioral1/memory/3136-2-0x0000000002F50000-0x000000000383B000-memory.dmp family_glupteba behavioral1/memory/3136-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3136-4-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3136-25-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3136-33-0x0000000002F50000-0x000000000383B000-memory.dmp family_glupteba behavioral1/memory/3136-50-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3136-61-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2380-64-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2380-97-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2380-157-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2404-226-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2404-263-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2404-272-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2404-274-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2404-276-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2872 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2404 csrss.exe 1284 injector.exe 4560 windefender.exe 764 windefender.exe -
resource yara_rule behavioral1/files/0x00040000000006df-266.dat upx behavioral1/memory/4560-271-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/764-273-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\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 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.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe File created C:\Windows\rss\csrss.exe c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 1156 sc.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 5016 schtasks.exe 3292 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-391 = "Arab Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2002 = "Cabo Verde Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time" windefender.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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA 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\22\52C64B7E\@tzres.dll,-221 = "Alaskan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates 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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs 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\22\52C64B7E\@tzres.dll,-449 = "Azerbaijan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.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\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-571 = "China Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-262 = "GMT Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 5108 powershell.exe 5108 powershell.exe 3136 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 3136 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 4600 powershell.exe 4600 powershell.exe 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 2028 powershell.exe 2028 powershell.exe 2464 powershell.exe 2464 powershell.exe 2620 powershell.exe 2620 powershell.exe 344 powershell.exe 344 powershell.exe 5056 powershell.exe 5056 powershell.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe 2404 csrss.exe 2404 csrss.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe 2404 csrss.exe 2404 csrss.exe 1284 injector.exe 1284 injector.exe 2404 csrss.exe 2404 csrss.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe 1284 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 5108 powershell.exe Token: SeDebugPrivilege 3136 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Token: SeImpersonatePrivilege 3136 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe Token: SeDebugPrivilege 4600 powershell.exe Token: SeDebugPrivilege 2028 powershell.exe Token: SeDebugPrivilege 2464 powershell.exe Token: SeDebugPrivilege 2620 powershell.exe Token: SeDebugPrivilege 344 powershell.exe Token: SeDebugPrivilege 5056 powershell.exe Token: SeSystemEnvironmentPrivilege 2404 csrss.exe Token: SeSecurityPrivilege 1156 sc.exe Token: SeSecurityPrivilege 1156 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3136 wrote to memory of 5108 3136 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 90 PID 3136 wrote to memory of 5108 3136 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 90 PID 3136 wrote to memory of 5108 3136 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 90 PID 2380 wrote to memory of 4600 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 100 PID 2380 wrote to memory of 4600 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 100 PID 2380 wrote to memory of 4600 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 100 PID 2380 wrote to memory of 4996 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 102 PID 2380 wrote to memory of 4996 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 102 PID 4996 wrote to memory of 2872 4996 cmd.exe 104 PID 4996 wrote to memory of 2872 4996 cmd.exe 104 PID 2380 wrote to memory of 2028 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 105 PID 2380 wrote to memory of 2028 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 105 PID 2380 wrote to memory of 2028 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 105 PID 2380 wrote to memory of 2464 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 107 PID 2380 wrote to memory of 2464 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 107 PID 2380 wrote to memory of 2464 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 107 PID 2380 wrote to memory of 2404 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 109 PID 2380 wrote to memory of 2404 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 109 PID 2380 wrote to memory of 2404 2380 c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe 109 PID 2404 wrote to memory of 2620 2404 csrss.exe 110 PID 2404 wrote to memory of 2620 2404 csrss.exe 110 PID 2404 wrote to memory of 2620 2404 csrss.exe 110 PID 2404 wrote to memory of 344 2404 csrss.exe 116 PID 2404 wrote to memory of 344 2404 csrss.exe 116 PID 2404 wrote to memory of 344 2404 csrss.exe 116 PID 2404 wrote to memory of 5056 2404 csrss.exe 118 PID 2404 wrote to memory of 5056 2404 csrss.exe 118 PID 2404 wrote to memory of 5056 2404 csrss.exe 118 PID 2404 wrote to memory of 1284 2404 csrss.exe 120 PID 2404 wrote to memory of 1284 2404 csrss.exe 120 PID 4560 wrote to memory of 5052 4560 windefender.exe 126 PID 4560 wrote to memory of 5052 4560 windefender.exe 126 PID 4560 wrote to memory of 5052 4560 windefender.exe 126 PID 5052 wrote to memory of 1156 5052 cmd.exe 127 PID 5052 wrote to memory of 1156 5052 cmd.exe 127 PID 5052 wrote to memory of 1156 5052 cmd.exe 127 -
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\c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe"C:\Users\Admin\AppData\Local\Temp\c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3136 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5108
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C:\Users\Admin\AppData\Local\Temp\c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe"C:\Users\Admin\AppData\Local\Temp\c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427.exe"2⤵
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2380 -
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:4600
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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:4996 -
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:2872
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2028
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2464
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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:2404 -
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:2620
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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:3292
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4988
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:344
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5056
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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:1284
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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:5016
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4560 -
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:5052 -
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:1156
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:764
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
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fc70834955da7195d31daf2cfe1c248b
SHA1f6fe07e58676d7008ce090e028c8ee8837c9afea
SHA2563158a7376ab98173a97a86502d9b779ea2be14261b2bcabdc07900f5621f0b85
SHA512dcfb342f2ca71141cead47b97e799cd7463d6ac4c77ff6e7bf328ca0cfb3e189c19cfb9b2a97d524a6b805d6d42ba2cab9627c916e9525f13e498bf10d557f6a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cd0cd6a0cf2c3cf232a7228055e17843
SHA1a3fa19e63ff770ff2e946735b874bead4d9a6c85
SHA2560d2876b4d8a98ecf77899457bc0dbeed2c411570281f0cf75a0a8cbec644438f
SHA5126ddd7842e89f5fb90ed7bbae553429c122a4b55ed4ba4de3d34529e828eff1a5d82c98f2b959ab1866de6d73817216f537a476d83128f3b25c103e16b65550dd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD573713a69e0c428c00a81fe7523eaf212
SHA150bf42e9d53c95173fcd4bb824ba73716b276a14
SHA2565b2da4f3bfb3603918f7477990e86c3481da014ff114c84b18a50c134b6682e9
SHA512af834778245692517bf170ed2c1f7dd8476c1d165ebf8aae6c472c906639d49a820246fc382764f4d59fd42f8928cf8b54be59a8eab39ab08c6e52d9e1513bf4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c4592ffb2a5af18442e9b73d3037320a
SHA13e7c1fa6f6a3bda6fd45b5ef213a95e6bd7105fb
SHA25628ae9299427a5541aeb1c5ff94f8c6c29b134c85546e830504376d38ae325629
SHA512ae465255927d090160f202ffcdaddbc700805a95c93372c9220c2e840728dc4157a8bd2dacb46255c7489976bf08311c329c0fdfe8ebaeef69cf18cf0ab8de16
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c4088388e44497293776f8900d266ed3
SHA1a5dff37d81979b43fc5ef5a6b3f1923e7e46295e
SHA256b766817d9bbfb3d4aeb7559f1e4adfa7a58a18cf6ccb481e44fa79875a9c1906
SHA512e922f9f515fb199cb1e92c6926d7575e3839bbaf29c9acb55445d27471e0d31e8aac94c9056a705ef4cab045a54e8cfc1bc2ef99f27906d13e95c7c2c3c4f9ae
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Filesize
4.2MB
MD5fcc0ebbf9e2b6540f0726407bb87ad2b
SHA13133c7b5d6cd99f00b46325802b1cffb57cd7440
SHA256c4c5617b448bba9da4553b830152c0ac895be7345698f48070126707d9f63427
SHA512157507a3531060e7efd0fb0c002117b3593c2c9ff80b7d0a34b321f7ce7796a70e825894489d949af4e240564e6ccbae17b750d1f5e600b35a5076a48f852cc8
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec