Analysis
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max time kernel
150s -
max time network
148s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
09/04/2024, 02:33
Static task
static1
Behavioral task
behavioral1
Sample
27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe
Resource
win10v2004-20231215-en
General
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Target
27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe
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Size
4.2MB
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MD5
0c4c22abcb48f11fd703e85c7a20fa4b
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SHA1
5b81f73d57d4a185ca9d58f605c7a6d789b06e08
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SHA256
27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe
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SHA512
7ee90698eff0b5b1a9c2ab1cd180a1bc8b9e5a34678a59bb607f4a47f9b11b563d1feee5a76a0acfef07aad4f5a743ad5b7e7e34f16ddaa828b7865259d56704
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SSDEEP
98304:MBo7TEOS9z37c565/OF7GVbQ0Ggv3fjQl4owZWsK:VSa5f7GFQ+3EqoWY
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/1372-2-0x0000000005380000-0x0000000005C6B000-memory.dmp family_glupteba behavioral2/memory/1372-3-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/1372-52-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/560-55-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/1372-56-0x0000000005380000-0x0000000005C6B000-memory.dmp family_glupteba behavioral2/memory/560-150-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4496-248-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4496-257-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4496-259-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4496-261-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4496-263-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4496-265-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4496-267-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4496-269-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4496-271-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4496-273-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4496-275-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4496-277-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba behavioral2/memory/4496-279-0x0000000000400000-0x0000000003104000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1788 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4496 csrss.exe 5028 injector.exe 2468 windefender.exe 4992 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a789-251.dat upx behavioral2/memory/2468-255-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4992-258-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4992-262-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-1637591879-962683004-3585269084-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created 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 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe File created C:\Windows\rss\csrss.exe 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.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 2292 sc.exe -
Program crash 2 IoCs
pid pid_target Process procid_target 2952 1372 WerFault.exe 77 2264 560 WerFault.exe 83 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4964 schtasks.exe 1900 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-651 = "AUS Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-732 = "Fiji Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-271 = "Greenwich Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-932 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1972 = "Belarus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2791 = "Novosibirsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1932 = "Russia TZ 11 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-105 = "Central Brazilian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.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\22\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-162 = "Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-512 = "Central Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1721 = "Libya Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2941 = "Sao Tome Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1022 = "Bangladesh Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2632 = "Norfolk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates 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\22\52C64B7E\@tzres.dll,-731 = "Fiji Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3820 powershell.exe 3820 powershell.exe 1372 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 1372 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 2076 powershell.exe 2076 powershell.exe 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 3696 powershell.exe 3696 powershell.exe 4956 powershell.exe 4956 powershell.exe 3996 powershell.exe 3996 powershell.exe 2528 powershell.exe 2528 powershell.exe 3104 powershell.exe 3104 powershell.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe 4496 csrss.exe 4496 csrss.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe 4496 csrss.exe 4496 csrss.exe 5028 injector.exe 5028 injector.exe 4496 csrss.exe 4496 csrss.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe 5028 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3820 powershell.exe Token: SeDebugPrivilege 1372 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe Token: SeImpersonatePrivilege 1372 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe Token: SeDebugPrivilege 2076 powershell.exe Token: SeDebugPrivilege 3696 powershell.exe Token: SeDebugPrivilege 4956 powershell.exe Token: SeDebugPrivilege 3996 powershell.exe Token: SeDebugPrivilege 2528 powershell.exe Token: SeDebugPrivilege 3104 powershell.exe Token: SeSystemEnvironmentPrivilege 4496 csrss.exe Token: SeSecurityPrivilege 2292 sc.exe Token: SeSecurityPrivilege 2292 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1372 wrote to memory of 3820 1372 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 79 PID 1372 wrote to memory of 3820 1372 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 79 PID 1372 wrote to memory of 3820 1372 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 79 PID 560 wrote to memory of 2076 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 87 PID 560 wrote to memory of 2076 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 87 PID 560 wrote to memory of 2076 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 87 PID 560 wrote to memory of 5076 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 89 PID 560 wrote to memory of 5076 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 89 PID 5076 wrote to memory of 1788 5076 cmd.exe 91 PID 5076 wrote to memory of 1788 5076 cmd.exe 91 PID 560 wrote to memory of 3696 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 92 PID 560 wrote to memory of 3696 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 92 PID 560 wrote to memory of 3696 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 92 PID 560 wrote to memory of 4956 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 94 PID 560 wrote to memory of 4956 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 94 PID 560 wrote to memory of 4956 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 94 PID 560 wrote to memory of 4496 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 96 PID 560 wrote to memory of 4496 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 96 PID 560 wrote to memory of 4496 560 27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe 96 PID 4496 wrote to memory of 3996 4496 csrss.exe 99 PID 4496 wrote to memory of 3996 4496 csrss.exe 99 PID 4496 wrote to memory of 3996 4496 csrss.exe 99 PID 4496 wrote to memory of 2528 4496 csrss.exe 105 PID 4496 wrote to memory of 2528 4496 csrss.exe 105 PID 4496 wrote to memory of 2528 4496 csrss.exe 105 PID 4496 wrote to memory of 3104 4496 csrss.exe 107 PID 4496 wrote to memory of 3104 4496 csrss.exe 107 PID 4496 wrote to memory of 3104 4496 csrss.exe 107 PID 4496 wrote to memory of 5028 4496 csrss.exe 109 PID 4496 wrote to memory of 5028 4496 csrss.exe 109 PID 2468 wrote to memory of 2308 2468 windefender.exe 115 PID 2468 wrote to memory of 2308 2468 windefender.exe 115 PID 2468 wrote to memory of 2308 2468 windefender.exe 115 PID 2308 wrote to memory of 2292 2308 cmd.exe 116 PID 2308 wrote to memory of 2292 2308 cmd.exe 116 PID 2308 wrote to memory of 2292 2308 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\27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe"C:\Users\Admin\AppData\Local\Temp\27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1372 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3820
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C:\Users\Admin\AppData\Local\Temp\27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.exe"C:\Users\Admin\AppData\Local\Temp\27c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe.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:560 -
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:2076
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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:5076 -
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:1788
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3696
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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:4956
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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:4496 -
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:3996
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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:4964
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1632
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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:2528
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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:3104
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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:5028
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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:1900
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2468 -
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:2308 -
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:2292
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 560 -s 8323⤵
- Program crash
PID:2264
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1372 -s 6802⤵
- Program crash
PID:2952
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1372 -ip 13721⤵PID:4680
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 560 -ip 5601⤵PID:2816
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4992
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
MD52f29afc72da9127a4adb031c611cdc71
SHA17059acbafb3eb35413368dfc78a8c50b42ed697c
SHA25683cb1183db686e91a1f8afb8da008499fe42a3e1f8877a90d29c4f45ae0d27fd
SHA5120e4e162b807fd145180f367decd449cb6ff102f537a5316bd1c49fa79a6e51a224b78308472f7ed574148343709deceb4e35c38db4102b38b1aae12ecb9d2611
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD577d9a9ed6ae9afe39e7a97a65c098cc5
SHA1c40c676c26ba24c8d2eb1f2472f7470a0f3c896d
SHA256d56b12df600bddf8ebdd1e6f5af0c99a3ab87b19428e9156b9930b68d0db0368
SHA512edc50acbd248dc7a0349969d07ca0939e9f87ed432c541122f626696869f4a06f5932d936f04afcfc0f221335164f9bf852779c889e935fed87106240462a2ce
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bf7045d599522ab98a83e0d6b99e6ca7
SHA155a5e1189e4dc639e8982f40b13a2814c0b43a10
SHA256a22f9e947492220a6cdf3bb589778a026b793204e4063554a4204b7f7795afcd
SHA5120d2bf2bc50d877d3be7f417c59e586f2eebd025c8d32214b75dfa5d08c3558f78f36616480d7210a22559af3efd2aa747792357ab719f0b5af70d496b31396b8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52cf6edbddb32234b7b918c9be63a3843
SHA10f35c9d7cd6893fe3ea7a823f421f3a67330488d
SHA256f139651a88eeaf20025f764a88bc1272f44781bc322ea186dbd49b7124304942
SHA5124284060b7d71772b9734527720743f78acf8c5f9469852fe65970adb3b7a94dbd7e12bba5b5fb061be086dfba81ec26b800775674f01d5257fb01f870570ef48
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD541becd07ac66177ca4aebe3ae56a2f6b
SHA1ab9359aa5d573092efb900b4f94c98a77219fd75
SHA25697e66b8a3e3e0c11e3b5aa0645099ad53857b0822eb3d62ebcb2806b6f00c8ad
SHA512e2edf4f8c6aabd07ac5ab76ba32968576bbf4d2efb36ccebd99a258c935b2444beb2b6d31f25595fb13f813444765f6fd7955e904119e0c7dd61942115db1c20
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Filesize
4.2MB
MD50c4c22abcb48f11fd703e85c7a20fa4b
SHA15b81f73d57d4a185ca9d58f605c7a6d789b06e08
SHA25627c046477a8720230a182ca05ac9b8d09c302d3fd0a406469548d3c10a0454fe
SHA5127ee90698eff0b5b1a9c2ab1cd180a1bc8b9e5a34678a59bb607f4a47f9b11b563d1feee5a76a0acfef07aad4f5a743ad5b7e7e34f16ddaa828b7865259d56704
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec