Analysis
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max time kernel
150s -
max time network
148s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
15/05/2024, 19:16
Static task
static1
Behavioral task
behavioral1
Sample
fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe
Resource
win10v2004-20240426-en
General
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Target
fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe
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Size
4.1MB
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MD5
e82d610b4e846700b0c1d86b2e01e7e9
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SHA1
0d4f660f4f0b138048ae361a39ebe4fbcf6400d9
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SHA256
fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6
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SHA512
73ce7eff23870064854b865e3395e7aac1042e2d54e459233ab59f7baa0f2a560eead88d4daf5e5fe4a9f061733b9fc128b262dfdf02df3c029d112e2a6b4c28
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SSDEEP
98304:nvKhyQu49tHH7DRYDff1lXFitQcJyMhd8Y1A:nv8u49ZH7eDfxu9yMsEA
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/4980-2-0x0000000004DF0000-0x00000000056DB000-memory.dmp family_glupteba behavioral2/memory/4980-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4980-21-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4980-55-0x0000000004DF0000-0x00000000056DB000-memory.dmp family_glupteba behavioral2/memory/4980-53-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4980-56-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4432-123-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4432-130-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2424-176-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2424-206-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2424-216-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2424-219-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2424-222-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2424-225-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2424-228-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2424-231-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2424-234-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2424-237-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1944 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2424 csrss.exe 4768 injector.exe 4268 windefender.exe 3608 windefender.exe -
resource yara_rule behavioral2/files/0x000400000002a9c6-209.dat upx behavioral2/memory/4268-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4268-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3608-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3608-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.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 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 -
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 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe File created C:\Windows\rss\csrss.exe fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification 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 5072 sc.exe -
pid Process 1520 powershell.exe 4720 powershell.exe 4412 powershell.exe 1588 powershell.exe 408 powershell.exe 3620 powershell.exe 3052 powershell.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 4248 schtasks.exe 1744 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,-1801 = "Line Islands Daylight Time" fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\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\@tzres.dll,-162 = "Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-592 = "Malay Peninsula Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.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\@tzres.dll,-2391 = "Aleutian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.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\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-741 = "New Zealand Daylight Time" windefender.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,-351 = "FLE Daylight Time" fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2592 = "Tocantins Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.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\@tzres.dll,-2452 = "Saint Pierre Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.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\@tzres.dll,-1472 = "Magadan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2941 = "Sao Tome Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-152 = "Central America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-561 = "SE Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-591 = "Malay Peninsula Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1872 = "Russia TZ 7 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-621 = "Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4412 powershell.exe 4412 powershell.exe 4980 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 4980 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 1588 powershell.exe 1588 powershell.exe 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 408 powershell.exe 408 powershell.exe 3620 powershell.exe 3620 powershell.exe 3052 powershell.exe 3052 powershell.exe 1520 powershell.exe 1520 powershell.exe 4720 powershell.exe 4720 powershell.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe 2424 csrss.exe 2424 csrss.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe 2424 csrss.exe 2424 csrss.exe 4768 injector.exe 4768 injector.exe 2424 csrss.exe 2424 csrss.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe 4768 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4412 powershell.exe Token: SeDebugPrivilege 4980 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe Token: SeImpersonatePrivilege 4980 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe Token: SeDebugPrivilege 1588 powershell.exe Token: SeDebugPrivilege 408 powershell.exe Token: SeDebugPrivilege 3620 powershell.exe Token: SeDebugPrivilege 3052 powershell.exe Token: SeDebugPrivilege 1520 powershell.exe Token: SeDebugPrivilege 4720 powershell.exe Token: SeSystemEnvironmentPrivilege 2424 csrss.exe Token: SeSecurityPrivilege 5072 sc.exe Token: SeSecurityPrivilege 5072 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4980 wrote to memory of 4412 4980 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 82 PID 4980 wrote to memory of 4412 4980 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 82 PID 4980 wrote to memory of 4412 4980 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 82 PID 4432 wrote to memory of 1588 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 87 PID 4432 wrote to memory of 1588 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 87 PID 4432 wrote to memory of 1588 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 87 PID 4432 wrote to memory of 2624 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 89 PID 4432 wrote to memory of 2624 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 89 PID 2624 wrote to memory of 1944 2624 cmd.exe 91 PID 2624 wrote to memory of 1944 2624 cmd.exe 91 PID 4432 wrote to memory of 408 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 93 PID 4432 wrote to memory of 408 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 93 PID 4432 wrote to memory of 408 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 93 PID 4432 wrote to memory of 3620 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 95 PID 4432 wrote to memory of 3620 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 95 PID 4432 wrote to memory of 3620 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 95 PID 4432 wrote to memory of 2424 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 99 PID 4432 wrote to memory of 2424 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 99 PID 4432 wrote to memory of 2424 4432 fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe 99 PID 2424 wrote to memory of 3052 2424 csrss.exe 102 PID 2424 wrote to memory of 3052 2424 csrss.exe 102 PID 2424 wrote to memory of 3052 2424 csrss.exe 102 PID 2424 wrote to memory of 1520 2424 csrss.exe 108 PID 2424 wrote to memory of 1520 2424 csrss.exe 108 PID 2424 wrote to memory of 1520 2424 csrss.exe 108 PID 2424 wrote to memory of 4720 2424 csrss.exe 110 PID 2424 wrote to memory of 4720 2424 csrss.exe 110 PID 2424 wrote to memory of 4720 2424 csrss.exe 110 PID 2424 wrote to memory of 4768 2424 csrss.exe 112 PID 2424 wrote to memory of 4768 2424 csrss.exe 112 PID 4268 wrote to memory of 3068 4268 windefender.exe 119 PID 4268 wrote to memory of 3068 4268 windefender.exe 119 PID 4268 wrote to memory of 3068 4268 windefender.exe 119 PID 3068 wrote to memory of 5072 3068 cmd.exe 120 PID 3068 wrote to memory of 5072 3068 cmd.exe 120 PID 3068 wrote to memory of 5072 3068 cmd.exe 120 -
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\fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe"C:\Users\Admin\AppData\Local\Temp\fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4980 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4412
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C:\Users\Admin\AppData\Local\Temp\fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.exe"C:\Users\Admin\AppData\Local\Temp\fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6.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:4432 -
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:1588
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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:2624 -
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:1944
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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:408
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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:3620
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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:2424 -
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:3052
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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:4248
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2112
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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:1520
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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:4720
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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:4768
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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:1744
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4268 -
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:3068 -
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:5072
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3608
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
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD556554015d580a937efe0cf251d7f0326
SHA116050ede7e1569d385d812b8b2b978945c1ed056
SHA256c06b206e6fae66d9bbbf38b8df154081ce2c432176fa15d40e553ae355c464d7
SHA512ed795a1a913fe94ff48be6a807b42b9e90b38d03bd0ce94e249be6d8f197915081290e84d719ae1979a5720729880c96d017023b853ab1a08a83d5ef208cfc15
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD539e4630d124db4f44f2ea2bfe005de82
SHA15ddcb6e2843e21caf7f4661c870b4ad487af1409
SHA256f87c318c5778d25198faba65ca2473a1f7808da16f547dc7c826f20b471ee985
SHA5126ff96fe8d50cc69331477e5306cbe8ddf9160271032d6d283ea8baf22ebac7f773036b0604741b62097edad784e91b46a6ad8d44bc774a8dc8822d3d22a90cd8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5df0a72fca526127c8311837f3c849d2d
SHA1aba4bc8646c8985b6468b1ee94b8e9cacd540137
SHA2566dbcf63db96f26a2572cfb29cae8d133f1f5961bad28694ddebff403591e35b8
SHA512d2afa981190f3fd4d1fb659b07f860c8f14da21840fe47105f2fdd5c0844507fd1c20a56ec6eba38666c59408d7d3670385c4e2a65e225c92d6dce71d10f1967
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD579f7d2cc5be99ef9a66666045da3f1c6
SHA17cf0d97258c1c33f2edcf9044039a73826f9c82f
SHA256e00a2386063cbc12294571063cd043d028e2b8875821510f356908a97aefd6f6
SHA512a5d9a391d9f49319145af9a8425e074951a7f07a0849ab2b16635270f6e058d44e22d7316742531a6c9e5827cceca2eaa1d70d6a90ef7621fb7cc71351ef9444
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50506265b729a7a946cd38b4266579cdc
SHA117393e80c344c2495b0d4dae22731e4cf06fb264
SHA256ab4d9e8820b5f1bedba9dfc4e0016d8d9a734273b015effa10bf19578a0c7565
SHA5121325b2b76dc52621f9e8afdb27d5533a1196ef926ac24ca13b56959e5281adc30c4ff9e3f128bc535da37ba0d3a063d70931479dca3df1d380bff36950c8fed3
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Filesize
4.1MB
MD5e82d610b4e846700b0c1d86b2e01e7e9
SHA10d4f660f4f0b138048ae361a39ebe4fbcf6400d9
SHA256fc865f857818beabaa015df0ea579e62a18d8255fd7cb3f4628d943a6b4d7cd6
SHA51273ce7eff23870064854b865e3395e7aac1042e2d54e459233ab59f7baa0f2a560eead88d4daf5e5fe4a9f061733b9fc128b262dfdf02df3c029d112e2a6b4c28
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec