Analysis
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max time kernel
149s -
max time network
124s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 08:59
Static task
static1
Behavioral task
behavioral1
Sample
fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe
Resource
win10v2004-20240508-en
General
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Target
fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe
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Size
4.1MB
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MD5
4275f39e8cdf6fa3ab1fd534d039c027
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SHA1
71f414e429ca49cfe33d301618924d35bccc5be7
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SHA256
fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd
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SHA512
e5a749d07d1eb4190dc189aaeca8e3ef4d8934fdb817edc82f79115a5129d7aee6894ba198f30ac6902f37101ef40ee0028b3cca4c3b80d8cca0cb32768361e5
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SSDEEP
98304:ovCQaDBnSWO/B+XxjapSyZlG1PnsYHdaWgIg92gsnC3bzMZh6P1P:ovC3DFSWO/BjYGk1PnXHoWWZ1za6NP
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/4368-2-0x00000000045F0000-0x0000000004EDB000-memory.dmp family_glupteba behavioral2/memory/4368-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4368-53-0x00000000045F0000-0x0000000004EDB000-memory.dmp family_glupteba behavioral2/memory/4368-54-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4368-51-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/1492-124-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/2592-203-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/2592-213-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/2592-215-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/2592-217-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/2592-219-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/2592-221-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/2592-223-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/2592-225-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/2592-227-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/2592-229-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/2592-231-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/2592-233-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/2592-235-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3008 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2592 csrss.exe 2588 injector.exe 2552 windefender.exe 5036 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa01-206.dat upx behavioral2/memory/2552-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5036-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2552-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5036-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5036-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3062789476-783164490-2318012559-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Set value (str) \REGISTRY\USER\S-1-5-21-3062789476-783164490-2318012559-1000\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 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 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe File created C:\Windows\rss\csrss.exe fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.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 2956 sc.exe -
pid Process 5096 powershell.exe 2348 powershell.exe 1804 powershell.exe 2488 powershell.exe 4760 powershell.exe 2940 powershell.exe 2360 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 4872 schtasks.exe 3744 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-151 = "Central America Daylight Time" windefender.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,-2341 = "Haiti Daylight Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2062 = "North Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-671 = "AUS Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2002 = "Cabo Verde Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.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,-172 = "Central Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2432 = "Cuba Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1832 = "Russia TZ 2 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2842 = "Saratov Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.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,-672 = "AUS Eastern Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-832 = "SA Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.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,-1872 = "Russia TZ 7 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-402 = "Arabic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.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\2a\52C64B7E\@tzres.dll,-2591 = "Tocantins Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs 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\2a\52C64B7E\@tzres.dll,-441 = "Arabian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 5096 powershell.exe 5096 powershell.exe 4368 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 4368 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 2348 powershell.exe 2348 powershell.exe 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 1804 powershell.exe 1804 powershell.exe 2488 powershell.exe 2488 powershell.exe 4760 powershell.exe 4760 powershell.exe 2940 powershell.exe 2940 powershell.exe 2360 powershell.exe 2360 powershell.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe 2592 csrss.exe 2592 csrss.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe 2592 csrss.exe 2592 csrss.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe 2592 csrss.exe 2592 csrss.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe 2588 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 5096 powershell.exe Token: SeDebugPrivilege 4368 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Token: SeImpersonatePrivilege 4368 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe Token: SeDebugPrivilege 2348 powershell.exe Token: SeDebugPrivilege 1804 powershell.exe Token: SeDebugPrivilege 2488 powershell.exe Token: SeDebugPrivilege 4760 powershell.exe Token: SeDebugPrivilege 2940 powershell.exe Token: SeDebugPrivilege 2360 powershell.exe Token: SeSystemEnvironmentPrivilege 2592 csrss.exe Token: SeSecurityPrivilege 2956 sc.exe Token: SeSecurityPrivilege 2956 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4368 wrote to memory of 5096 4368 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 80 PID 4368 wrote to memory of 5096 4368 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 80 PID 4368 wrote to memory of 5096 4368 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 80 PID 1492 wrote to memory of 2348 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 86 PID 1492 wrote to memory of 2348 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 86 PID 1492 wrote to memory of 2348 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 86 PID 1492 wrote to memory of 3532 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 88 PID 1492 wrote to memory of 3532 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 88 PID 3532 wrote to memory of 3008 3532 cmd.exe 90 PID 3532 wrote to memory of 3008 3532 cmd.exe 90 PID 1492 wrote to memory of 1804 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 91 PID 1492 wrote to memory of 1804 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 91 PID 1492 wrote to memory of 1804 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 91 PID 1492 wrote to memory of 2488 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 93 PID 1492 wrote to memory of 2488 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 93 PID 1492 wrote to memory of 2488 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 93 PID 1492 wrote to memory of 2592 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 95 PID 1492 wrote to memory of 2592 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 95 PID 1492 wrote to memory of 2592 1492 fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe 95 PID 2592 wrote to memory of 4760 2592 csrss.exe 96 PID 2592 wrote to memory of 4760 2592 csrss.exe 96 PID 2592 wrote to memory of 4760 2592 csrss.exe 96 PID 2592 wrote to memory of 2940 2592 csrss.exe 102 PID 2592 wrote to memory of 2940 2592 csrss.exe 102 PID 2592 wrote to memory of 2940 2592 csrss.exe 102 PID 2592 wrote to memory of 2360 2592 csrss.exe 104 PID 2592 wrote to memory of 2360 2592 csrss.exe 104 PID 2592 wrote to memory of 2360 2592 csrss.exe 104 PID 2592 wrote to memory of 2588 2592 csrss.exe 106 PID 2592 wrote to memory of 2588 2592 csrss.exe 106 PID 2552 wrote to memory of 2380 2552 windefender.exe 112 PID 2552 wrote to memory of 2380 2552 windefender.exe 112 PID 2552 wrote to memory of 2380 2552 windefender.exe 112 PID 2380 wrote to memory of 2956 2380 cmd.exe 113 PID 2380 wrote to memory of 2956 2380 cmd.exe 113 PID 2380 wrote to memory of 2956 2380 cmd.exe 113 -
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\fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe"C:\Users\Admin\AppData\Local\Temp\fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4368 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5096
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C:\Users\Admin\AppData\Local\Temp\fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.exe"C:\Users\Admin\AppData\Local\Temp\fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd.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:1492 -
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:2348
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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:3532 -
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:3008
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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:1804
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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:2488
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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:2592 -
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: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:4872
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1788
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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:2940
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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:2360
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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:2588
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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:3744
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2552 -
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:2380 -
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:2956
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:5036
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f39d4cb5c723705f559a115e827c2117
SHA15f3cfd38609b171633f5820ccd566a4baf1f7ead
SHA256beeb9d8c84dec21049ac012d5d0bc16ecf101452f38ff50d48ddb71eaa017f9f
SHA512f78df0315702862e4fae0141d13443e295a6797b2611bbde5dd94c1738a6b5155206a9167592c6d2d4a876aa81489dd3e1f97a553d56c3f2ce0c791787e24abe
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ab162a98407ae04b2400c1d417bea569
SHA1ec78d78e1b2629d372e51bdb824c26901162ef4b
SHA256ea87c32f9ad33d00cbb86e5c57b4a5e4d98ae9816ddf680cded2056d35569471
SHA5123121e706dda4f2782dbfb3726fc64905e11287f2b1cd48186f9199162081495593bc5ce7ec8eac723e874a5ba6b61fe31e37ca60e0775d7ff2929cb557480f11
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57be1130e0de0fb65fb0683aa59a67f5d
SHA183f6332dab62aaaa90bd4d5a94f4356c07f297d8
SHA256df97668759b56fb8c123424d980602b00c0c6f015bd051e5025b990b395cef53
SHA51271f3d58125e6b9e51a67d5d5504ab5dc02510d5a9f3f5e66f3c969a61546023c1ede4c858752621e110f9bfa72a14f571b7600a701890c28e33f8d10e6182436
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51353d299c262b2e887d7512ebe3a9b04
SHA1a3e668885d1461d49e056f1ecf8936e2103c8295
SHA2562ee1a59606536a1477c9b5267f1e65bd2e5688732e5376af8fe017b293545bd2
SHA5127bd3b5f94d4e56efd41f14b3d88c279e46d0cb2247a8ddf767c9a111346c82a0fcedea55cb8d111df4cfbf8f77112468480f81246e5e1a9032f5617a54cb4da7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD529008d375858c72281193a5b81418077
SHA1ee1463530463fd73e1182025446f55ac5b4f1a80
SHA256a73a4baab99184c5cc4cf4ab3c8aee1de35bb71bb43ec28698acf2496eddd07d
SHA512f0f02fae1e63dcb6b670d16c85db913d3401576d3e25f7c0488c90a6587fe4217bcf1b5c2952ea3e99b7cbf2af288c9beef7ebc9f6f350279f07d86324cfe9f4
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Filesize
4.1MB
MD54275f39e8cdf6fa3ab1fd534d039c027
SHA171f414e429ca49cfe33d301618924d35bccc5be7
SHA256fc3cfd089254e6729b8ca03dec69844507bafaa649de648beadc6bc2e468ddcd
SHA512e5a749d07d1eb4190dc189aaeca8e3ef4d8934fdb817edc82f79115a5129d7aee6894ba198f30ac6902f37101ef40ee0028b3cca4c3b80d8cca0cb32768361e5
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec