Analysis
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max time kernel
150s -
max time network
131s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
17-05-2024 07:12
Static task
static1
Behavioral task
behavioral1
Sample
f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe
Resource
win10v2004-20240426-en
General
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Target
f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe
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Size
4.1MB
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MD5
b4081fad3c5b5cf75918c1442d454a86
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SHA1
d78dae667b58cf723dcb69c2870e4d5f684a96fe
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SHA256
f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4
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SHA512
c218bc6e9d4fca4070fdf0263cf7942c77d5711c9ee58a0e4b362559ec6d7bda6492d64d9c495e5781d3469d3ba3e2340628ed3da4237a055083295b11795a0f
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SSDEEP
98304:Q0IUXroYDzElV89sdV2qHm3LaKbYXl7F29tEHWEXgelgSAZWSyDiL0:rIU7SlV8K2X2AhEHFgekcj
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral1/memory/2956-2-0x0000000004CC0000-0x00000000055AB000-memory.dmp family_glupteba behavioral1/memory/2956-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2956-55-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/2956-106-0x0000000004CC0000-0x00000000055AB000-memory.dmp family_glupteba behavioral1/memory/2956-137-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3760-136-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/1736-218-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/1736-230-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/1736-233-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/1736-237-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/1736-242-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/1736-246-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/1736-250-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/1736-253-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/1736-257-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/1736-262-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/1736-266-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/1736-270-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3376 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1736 csrss.exe 3040 injector.exe 1244 windefender.exe 4224 windefender.exe -
resource yara_rule behavioral1/files/0x000e000000023370-223.dat upx behavioral1/memory/1244-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1244-228-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4224-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4224-234-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4224-241-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\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 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 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe File created C:\Windows\rss\csrss.exe f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.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 4060 sc.exe -
pid Process 4144 powershell.exe 2680 powershell.exe 1264 powershell.exe 992 powershell.exe 516 powershell.exe 4576 powershell.exe 3300 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 1864 schtasks.exe 2424 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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\2a\52C64B7E\@tzres.dll,-449 = "Azerbaijan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2341 = "Haiti Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-842 = "Argentina Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-451 = "Caucasus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-571 = "China Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-192 = "Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed 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,-2611 = "Bougainville Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-511 = "Central Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-161 = "Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-491 = "India Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-601 = "Taipei Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-791 = "SA Western Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-651 = "AUS Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2572 = "Turks and Caicos Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-962 = "Paraguay Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.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\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4576 powershell.exe 4576 powershell.exe 2956 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 2956 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 3300 powershell.exe 3300 powershell.exe 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 4144 powershell.exe 4144 powershell.exe 2680 powershell.exe 2680 powershell.exe 1264 powershell.exe 1264 powershell.exe 992 powershell.exe 992 powershell.exe 516 powershell.exe 516 powershell.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 1736 csrss.exe 1736 csrss.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 1736 csrss.exe 1736 csrss.exe 3040 injector.exe 3040 injector.exe 1736 csrss.exe 1736 csrss.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe 3040 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4576 powershell.exe Token: SeDebugPrivilege 2956 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Token: SeImpersonatePrivilege 2956 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Token: SeDebugPrivilege 3300 powershell.exe Token: SeDebugPrivilege 4144 powershell.exe Token: SeDebugPrivilege 2680 powershell.exe Token: SeDebugPrivilege 1264 powershell.exe Token: SeDebugPrivilege 992 powershell.exe Token: SeDebugPrivilege 516 powershell.exe Token: SeSystemEnvironmentPrivilege 1736 csrss.exe Token: SeSecurityPrivilege 4060 sc.exe Token: SeSecurityPrivilege 4060 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 2956 wrote to memory of 4576 2956 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 94 PID 2956 wrote to memory of 4576 2956 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 94 PID 2956 wrote to memory of 4576 2956 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 94 PID 3760 wrote to memory of 3300 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 100 PID 3760 wrote to memory of 3300 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 100 PID 3760 wrote to memory of 3300 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 100 PID 3760 wrote to memory of 2664 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 102 PID 3760 wrote to memory of 2664 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 102 PID 2664 wrote to memory of 3376 2664 cmd.exe 104 PID 2664 wrote to memory of 3376 2664 cmd.exe 104 PID 3760 wrote to memory of 4144 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 105 PID 3760 wrote to memory of 4144 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 105 PID 3760 wrote to memory of 4144 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 105 PID 3760 wrote to memory of 2680 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 107 PID 3760 wrote to memory of 2680 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 107 PID 3760 wrote to memory of 2680 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 107 PID 3760 wrote to memory of 1736 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 109 PID 3760 wrote to memory of 1736 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 109 PID 3760 wrote to memory of 1736 3760 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 109 PID 1736 wrote to memory of 1264 1736 csrss.exe 128 PID 1736 wrote to memory of 1264 1736 csrss.exe 128 PID 1736 wrote to memory of 1264 1736 csrss.exe 128 PID 1736 wrote to memory of 992 1736 csrss.exe 116 PID 1736 wrote to memory of 992 1736 csrss.exe 116 PID 1736 wrote to memory of 992 1736 csrss.exe 116 PID 1736 wrote to memory of 516 1736 csrss.exe 118 PID 1736 wrote to memory of 516 1736 csrss.exe 118 PID 1736 wrote to memory of 516 1736 csrss.exe 118 PID 1736 wrote to memory of 3040 1736 csrss.exe 121 PID 1736 wrote to memory of 3040 1736 csrss.exe 121 PID 1244 wrote to memory of 1264 1244 windefender.exe 128 PID 1244 wrote to memory of 1264 1244 windefender.exe 128 PID 1244 wrote to memory of 1264 1244 windefender.exe 128 PID 1264 wrote to memory of 4060 1264 cmd.exe 129 PID 1264 wrote to memory of 4060 1264 cmd.exe 129 PID 1264 wrote to memory of 4060 1264 cmd.exe 129 -
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\f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe"C:\Users\Admin\AppData\Local\Temp\f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2956 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4576
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C:\Users\Admin\AppData\Local\Temp\f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe"C:\Users\Admin\AppData\Local\Temp\f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.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:3760 -
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:3300
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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:2664 -
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:3376
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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:4144
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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:2680
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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:1736 -
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:1264
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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:1864
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:5048
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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:992
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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:516
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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:3040
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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:2424
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1244 -
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:1264 -
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:4060
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4224
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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD541d8231a7457b1e73ba136d37f9261dd
SHA1ee5d50ecd8f6b61da901c12c18d4005f5a562801
SHA25653bf34c686ffe5475072ef3e60e93b784dc9aa226e2d56e0ea80c776427e1367
SHA512a2071a83aef21c6eea4f5d15c080cff483b7d7de30250ab9359040e0b564faf542cd2bbcf5a9b88f946c7133bcb329460115fccd4e6320fb3449f9a5d3f8c157
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5aa516e1fd5cfcd86581a0a2e2ab1a7c5
SHA1fb5d1c54711ead3bc5c950a22717b467e4081fe7
SHA256988b4ed5eb7ee105095214f7f259a29a15bc0e867458dcfe29c98844ec9e66f9
SHA512e98d9927e6bf4fc2744c0c6832119c124a4574a85fb9bda409e42e4bd3b4171f394552432e7e3f231a84ae8ed5eaeaad3fddf8b7260be06d16e5daef802596c7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5031cd9f99f87238980ae08300ceb4158
SHA12b5badc3d9a9b8eb1de5defae086b4d9692e969d
SHA256ef006ac642673ac151a9428cd65a753c48f4d2ec60e63415dd210fb3d1eb2688
SHA5123891176e3faefa542b561f4bc9bfce213545c7f5adfc3b9e4043b355d3796dd6f80a81b89a22e833a60d3dbed57fb2d90b13a7bd7e050779f4bb9306c0881424
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59ffe720f37948ff616571ee9a2f5c202
SHA166d92c80d9ec73971402f6ee516d5ab64737f58f
SHA2566e35b5791ad55e73eb8d21bac9238a9dd2e0236091371e68f0524116237b38f8
SHA512a819168d0ef0a1c9cf3c0c06b86c3068468ec6d2ec8d427a1c781d420d5ec65dbd4fa110c32d025aa19a3b33f5a822bbc3c0a4178b25f3bc972df7f90df37dac
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52f074a6040df20a1d5f7916581e3549d
SHA19e4b28c01a856af200409b6c8729c1896cce5aaf
SHA256072e5d5f0f190086f2e15931ad9c01fd1b6ce26e6d44d5da6dcdf0ef505d8aec
SHA512d3b42e4b3a2c8a2a7f4f09dbaaf0cfbe2a5832514f67c1336789bdba23fe9836663c92d89f72540a37ceadd47b7ecd173e5d201b0dc6c3afc3d4919666cb1a6d
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Filesize
4.1MB
MD5b4081fad3c5b5cf75918c1442d454a86
SHA1d78dae667b58cf723dcb69c2870e4d5f684a96fe
SHA256f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4
SHA512c218bc6e9d4fca4070fdf0263cf7942c77d5711c9ee58a0e4b362559ec6d7bda6492d64d9c495e5781d3469d3ba3e2340628ed3da4237a055083295b11795a0f
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec