Analysis
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max time kernel
149s -
max time network
152s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
19/04/2024, 19:26
Static task
static1
Behavioral task
behavioral1
Sample
f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe
Resource
win10v2004-20240412-en
General
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Target
f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe
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Size
4.2MB
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MD5
bc0f4a52cb76c2c3cf27bbe9f586e456
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SHA1
5e525173276349ad03a64f28eb98a39502c3f321
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SHA256
f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b
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SHA512
295ee4e4af66bbd098f34f2e605413316b2853384189377309e61dac593ec82f3c78cf375cc5ede68c671715ec23731d1d02c5c5bf890fe325d9e1b7eb005034
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SSDEEP
98304:rtwUIgr6Tu/hivXD0fl0IvZVjhgp1+mYFjvUcmYnimsjZaHej:5w6rquKXDtU1Y2GYniVjUHG
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/5020-2-0x0000000004260000-0x0000000004B4B000-memory.dmp family_glupteba behavioral2/memory/5020-3-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/1400-53-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/5020-65-0x0000000004260000-0x0000000004B4B000-memory.dmp family_glupteba behavioral2/memory/5020-79-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/1400-151-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3848-245-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3848-255-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3848-257-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3848-260-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3848-263-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3848-267-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3848-270-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3848-272-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3848-275-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3848-278-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3848-281-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3848-285-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3848-288-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2552 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3848 csrss.exe 3936 injector.exe 4592 windefender.exe 4704 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa26-248.dat upx behavioral2/memory/4592-254-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4704-258-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4704-264-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-801765966-3955847401-2235691403-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-801765966-3955847401-2235691403-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.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 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 -
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 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe File created C:\Windows\rss\csrss.exe f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.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 2608 sc.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2284 1400 WerFault.exe 85 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2056 schtasks.exe 2504 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2431 = "Cuba Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time" f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.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\26\52C64B7E\@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-201 = "US Mountain Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-542 = "Myanmar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-892 = "Morocco Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs 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\26\52C64B7E\@tzres.dll,-402 = "Arabic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-591 = "Malay Peninsula Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-592 = "Malay Peninsula Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1842 = "Russia TZ 4 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-262 = "GMT Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-562 = "SE Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-561 = "SE Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-572 = "China Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time" f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2162 = "Altai Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-111 = "Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-532 = "Sri Lanka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1802 = "Line Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2841 = "Saratov Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3668 powershell.exe 3668 powershell.exe 5020 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 5020 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 4856 powershell.exe 4856 powershell.exe 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 4072 powershell.exe 4072 powershell.exe 1992 powershell.exe 1992 powershell.exe 4760 powershell.exe 4760 powershell.exe 1880 powershell.exe 1880 powershell.exe 3900 powershell.exe 3900 powershell.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe 3848 csrss.exe 3848 csrss.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe 3848 csrss.exe 3848 csrss.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe 3848 csrss.exe 3848 csrss.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe 3936 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3668 powershell.exe Token: SeDebugPrivilege 5020 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe Token: SeImpersonatePrivilege 5020 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe Token: SeDebugPrivilege 4856 powershell.exe Token: SeDebugPrivilege 4072 powershell.exe Token: SeDebugPrivilege 1992 powershell.exe Token: SeDebugPrivilege 4760 powershell.exe Token: SeDebugPrivilege 1880 powershell.exe Token: SeDebugPrivilege 3900 powershell.exe Token: SeSystemEnvironmentPrivilege 3848 csrss.exe Token: SeSecurityPrivilege 2608 sc.exe Token: SeSecurityPrivilege 2608 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 5020 wrote to memory of 3668 5020 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 80 PID 5020 wrote to memory of 3668 5020 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 80 PID 5020 wrote to memory of 3668 5020 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 80 PID 1400 wrote to memory of 4856 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 86 PID 1400 wrote to memory of 4856 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 86 PID 1400 wrote to memory of 4856 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 86 PID 1400 wrote to memory of 4196 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 88 PID 1400 wrote to memory of 4196 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 88 PID 4196 wrote to memory of 2552 4196 cmd.exe 90 PID 4196 wrote to memory of 2552 4196 cmd.exe 90 PID 1400 wrote to memory of 4072 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 114 PID 1400 wrote to memory of 4072 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 114 PID 1400 wrote to memory of 4072 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 114 PID 1400 wrote to memory of 1992 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 93 PID 1400 wrote to memory of 1992 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 93 PID 1400 wrote to memory of 1992 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 93 PID 1400 wrote to memory of 3848 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 95 PID 1400 wrote to memory of 3848 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 95 PID 1400 wrote to memory of 3848 1400 f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe 95 PID 3848 wrote to memory of 4760 3848 csrss.exe 99 PID 3848 wrote to memory of 4760 3848 csrss.exe 99 PID 3848 wrote to memory of 4760 3848 csrss.exe 99 PID 3848 wrote to memory of 1880 3848 csrss.exe 104 PID 3848 wrote to memory of 1880 3848 csrss.exe 104 PID 3848 wrote to memory of 1880 3848 csrss.exe 104 PID 3848 wrote to memory of 3900 3848 csrss.exe 107 PID 3848 wrote to memory of 3900 3848 csrss.exe 107 PID 3848 wrote to memory of 3900 3848 csrss.exe 107 PID 3848 wrote to memory of 3936 3848 csrss.exe 109 PID 3848 wrote to memory of 3936 3848 csrss.exe 109 PID 4592 wrote to memory of 2396 4592 windefender.exe 115 PID 4592 wrote to memory of 2396 4592 windefender.exe 115 PID 4592 wrote to memory of 2396 4592 windefender.exe 115 PID 2396 wrote to memory of 2608 2396 cmd.exe 116 PID 2396 wrote to memory of 2608 2396 cmd.exe 116 PID 2396 wrote to memory of 2608 2396 cmd.exe 116 -
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\f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe"C:\Users\Admin\AppData\Local\Temp\f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5020 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3668
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C:\Users\Admin\AppData\Local\Temp\f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.exe"C:\Users\Admin\AppData\Local\Temp\f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b.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:1400 -
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:4856
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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:4196 -
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:2552
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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:4072
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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:1992
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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:3848 -
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:4760
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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:2056
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4832
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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:1880
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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:3900
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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:3936
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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:2504
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4592 -
C:\Windows\System32\Conhost.exe\??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV15⤵PID:4072
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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:2396 -
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:2608
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1400 -s 6203⤵
- Program crash
PID:2284
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1400 -ip 14001⤵PID:2820
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4704
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
MD5b18e47318ce333e12f1273e342748ea8
SHA1cc0e30f9670f0d753f3fc10582bb61da5c9e823f
SHA256557bf1efe6dc72e0930d2e9312e3b035cf680677b28d980b7ce263692cca13a0
SHA512270b37ca4b08908d0a9d1712bc6c1793a229d4306172ebe592b23646677e3fb2200d02f06a58b470b7a59ad35cd12904f04dc6d3a9b4ff5d616447baad7e595c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50adf569b428eed5172473f72d945c2ae
SHA110e25314e569d17a01042463944de906e111c5d7
SHA25668b471ef694ce0e772cef85f0731bfc8ae2742bde57b9f2e856d6f162caf183c
SHA512383615aa8b7d091aa3956457c9749371bf8f43064cfdb29cb66e941aafe5141f6a9509ae30c6ea189abfdd65e97fee56f12b5955450b96e592298cc03f2f3f3f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58847d9e7d9c8a396eeb5961252799ce9
SHA1b5a3bc703a74b34d7c5fa5f01ed2dfad1f3e4184
SHA256cf17b52e1d686716fcc0a640f23b5bb902af1fa71208126c71d5540a676cc71a
SHA5129dcca9354fb899f82702761470a6bc5f0f25fd4d112dcc56353827e72383aa563310a31b0425328d120297fa3ffc81d7e33fb078eef941dcb77f59755ff5411d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55344044fc2c2f418b219408082ed88e1
SHA18ef45aa129195a9a8bc51fe1719bd5f5f2c51890
SHA2568ab70b4256b3fc217d6708913b0e29801afb31792a90cabb5d6dd572284a454a
SHA512499d6574aa73c1dc44a85eb3ccbde3462d54a1b6bcb56d2a0604b1dd84f1f0ec2e23f55c1ff10941872fb910072957786eca14b5e6edc8204c30c586c6375e59
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d5ae8b0ed15f4f4651601bf5717e9105
SHA1078d1a7fe78b930f8c0b6a6280a8adbb750f37a7
SHA256811604e05bb59be7863ad1f9e9c138d69cb60d574568f9d83ed3d547f5763da4
SHA5126f9cd67e1a04e4a7b370f4dfc25f3c0e72e846f7e95cdaada5ce2e35b60b258511fcede591bba1367a498da5860ae30cf2aa852ace518156a361d6fbbf02f8a7
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Filesize
4.2MB
MD5bc0f4a52cb76c2c3cf27bbe9f586e456
SHA15e525173276349ad03a64f28eb98a39502c3f321
SHA256f974e4939e43a6d24b223f3ef24fce6e0e313e8d521a285e998abd2033d7e54b
SHA512295ee4e4af66bbd098f34f2e605413316b2853384189377309e61dac593ec82f3c78cf375cc5ede68c671715ec23731d1d02c5c5bf890fe325d9e1b7eb005034
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec