Analysis
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max time kernel
150s -
max time network
135s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-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 17 IoCs
Processes:
resource yara_rule behavioral2/memory/4468-2-0x0000000004D40000-0x000000000562B000-memory.dmp family_glupteba behavioral2/memory/4468-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4468-10-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4468-54-0x0000000004D40000-0x000000000562B000-memory.dmp family_glupteba behavioral2/memory/4468-55-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4468-56-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4148-82-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4148-128-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4244-176-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4244-207-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4244-217-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4244-220-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4244-223-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4244-226-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4244-229-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4244-232-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4244-235-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 3276 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 4244 csrss.exe 4604 injector.exe 1324 windefender.exe 3476 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/1324-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1324-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3476-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3476-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3476-233-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2994005945-4089876968-1367784197-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Set value (str) \REGISTRY\USER\S-1-5-21-2994005945-4089876968-1367784197-1000\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.
Processes:
csrss.exedescription ioc process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process 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 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.
Processes:
f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe -
Drops file in Windows directory 4 IoCs
Processes:
f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.execsrss.exedescription 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.
Processes:
sc.exepid process 2052 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid process 788 powershell.exe 4052 powershell.exe 4260 powershell.exe 3440 powershell.exe 2840 powershell.exe 1332 powershell.exe 920 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 5116 schtasks.exe 3752 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exepowershell.exepowershell.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.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,-12 = "Azores Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-334 = "Jordan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-191 = "Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2492 = "Aus Central W. Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-121 = "SA Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe 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,-2591 = "Tocantins Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard Time" windefender.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,-1661 = "Bahia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-142 = "Canada Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-512 = "Central Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-622 = "Korea Standard Time" windefender.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,-792 = "SA Western Standard Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-151 = "Central America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-572 = "China Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-531 = "Sri Lanka 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 Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.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\@tzres.dll,-681 = "E. Australia 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,-1721 = "Libya Daylight Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs 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,-1041 = "Ulaanbaatar 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\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\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,-442 = "Arabian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exef43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exepowershell.exef43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 4052 powershell.exe 4052 powershell.exe 4468 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 4468 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 4260 powershell.exe 4260 powershell.exe 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe 3440 powershell.exe 3440 powershell.exe 2840 powershell.exe 2840 powershell.exe 1332 powershell.exe 1332 powershell.exe 920 powershell.exe 920 powershell.exe 788 powershell.exe 788 powershell.exe 4604 injector.exe 4604 injector.exe 4604 injector.exe 4604 injector.exe 4604 injector.exe 4604 injector.exe 4604 injector.exe 4244 csrss.exe 4604 injector.exe 4244 csrss.exe 4604 injector.exe 4604 injector.exe 4604 injector.exe 4604 injector.exe 4244 csrss.exe 4244 csrss.exe 4604 injector.exe 4604 injector.exe 4244 csrss.exe 4244 csrss.exe 4604 injector.exe 4604 injector.exe 4604 injector.exe 4604 injector.exe 4604 injector.exe 4604 injector.exe 4604 injector.exe 4604 injector.exe 4604 injector.exe 4604 injector.exe 4604 injector.exe 4604 injector.exe 4604 injector.exe 4604 injector.exe 4604 injector.exe 4604 injector.exe 4604 injector.exe 4604 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exef43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 4052 powershell.exe Token: SeDebugPrivilege 4468 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Token: SeImpersonatePrivilege 4468 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe Token: SeDebugPrivilege 4260 powershell.exe Token: SeDebugPrivilege 3440 powershell.exe Token: SeDebugPrivilege 2840 powershell.exe Token: SeDebugPrivilege 1332 powershell.exe Token: SeDebugPrivilege 920 powershell.exe Token: SeDebugPrivilege 788 powershell.exe Token: SeSystemEnvironmentPrivilege 4244 csrss.exe Token: SeSecurityPrivilege 2052 sc.exe Token: SeSecurityPrivilege 2052 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exef43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 4468 wrote to memory of 4052 4468 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe powershell.exe PID 4468 wrote to memory of 4052 4468 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe powershell.exe PID 4468 wrote to memory of 4052 4468 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe powershell.exe PID 4148 wrote to memory of 4260 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe powershell.exe PID 4148 wrote to memory of 4260 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe powershell.exe PID 4148 wrote to memory of 4260 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe powershell.exe PID 4148 wrote to memory of 3016 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe cmd.exe PID 4148 wrote to memory of 3016 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe cmd.exe PID 3016 wrote to memory of 3276 3016 cmd.exe netsh.exe PID 3016 wrote to memory of 3276 3016 cmd.exe netsh.exe PID 4148 wrote to memory of 3440 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe powershell.exe PID 4148 wrote to memory of 3440 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe powershell.exe PID 4148 wrote to memory of 3440 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe powershell.exe PID 4148 wrote to memory of 2840 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe powershell.exe PID 4148 wrote to memory of 2840 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe powershell.exe PID 4148 wrote to memory of 2840 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe powershell.exe PID 4148 wrote to memory of 4244 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe csrss.exe PID 4148 wrote to memory of 4244 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe csrss.exe PID 4148 wrote to memory of 4244 4148 f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4.exe csrss.exe PID 4244 wrote to memory of 1332 4244 csrss.exe powershell.exe PID 4244 wrote to memory of 1332 4244 csrss.exe powershell.exe PID 4244 wrote to memory of 1332 4244 csrss.exe powershell.exe PID 4244 wrote to memory of 920 4244 csrss.exe powershell.exe PID 4244 wrote to memory of 920 4244 csrss.exe powershell.exe PID 4244 wrote to memory of 920 4244 csrss.exe powershell.exe PID 4244 wrote to memory of 788 4244 csrss.exe powershell.exe PID 4244 wrote to memory of 788 4244 csrss.exe powershell.exe PID 4244 wrote to memory of 788 4244 csrss.exe powershell.exe PID 4244 wrote to memory of 4604 4244 csrss.exe injector.exe PID 4244 wrote to memory of 4604 4244 csrss.exe injector.exe PID 1324 wrote to memory of 228 1324 windefender.exe cmd.exe PID 1324 wrote to memory of 228 1324 windefender.exe cmd.exe PID 1324 wrote to memory of 228 1324 windefender.exe cmd.exe PID 228 wrote to memory of 2052 228 cmd.exe sc.exe PID 228 wrote to memory of 2052 228 cmd.exe sc.exe PID 228 wrote to memory of 2052 228 cmd.exe sc.exe -
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:4468 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4052 -
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:4148 -
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:4260 -
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:3016 -
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:3276 -
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:3440 -
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:2840 -
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:4244 -
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:1332 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:5116 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:464
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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:920 -
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:788 -
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:4604 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:3752 -
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1324 -
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:228 -
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:2052
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3476
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
MD54f934d0dff77f06a2342d885e7fe39e5
SHA12564f0d4fdbb84f3d24b86343d0ecff8b59c9d38
SHA256382d219f84ad0f7fbf62f20de633e88dceb88d8e894405531418b6b2ff46ae10
SHA512262ca7e996e43001e4a8e22d08dc9730b651f9d70346ac0834227cd9d5fe49617958d2bd6e09dd05441a2567a7cd915c2b72c62093e4376d66f636e86d80b92b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bd48be8fc31d44994dad41b003c1553c
SHA135532da68bc623407a0fd5af9b1793c05772722a
SHA25618d2db0ff1633a44c85b2ae3a8fbe3c05d5e0b7286a6664935b4c57a21a24afc
SHA5124229694017a8f3d7002fdabe7f5fd498f3a17d714996380e8f0e656a7d15c3ec14c142b25a58923bdd76192ae6d27f709afd187c3d7fc001e91af866b93a1c09
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f8e0419b91420d00234ac82aefe36228
SHA1b6c83df95da068dfd66d29962468fb848c054a4a
SHA2565d939b811ab8cd738fd3468fda6a7d065c1df5af9ca519b6f359f49d3f1a3707
SHA5129afccf8d8caa5151cd467c68310c2fece6caa083bedcd60c5c75c387be2967f961930f51f96df400425d4dcb4cb5a54e4d6c2d49e9a55363e67caf98d2444c81
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50093f848124c5d4fb726c93a632b862f
SHA19c27184ed70b9279bcf6af4a831462fef56a5c8e
SHA256b320aa3d61a109adc911e1e39b4248c87e4e459b7e93ee7b9784ac29a893a427
SHA512d959d5f0d99ca6b9f22a3d18eb54e7439d7e7cd5ba2e83bf1e4c25033ac1f1faa6ffcc33255fcafe5d666897add988f06f0b348e951f9da2351afb3b07a5cd85
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e2a8ba04c942c61cc9932ee969050d49
SHA19a273ee39107ba52fca768bd910700ba9bb5ce55
SHA2569f5be18a981a989493861772a444b93be43636fbdf99ab0b891c9dcebd9ca350
SHA512fe601aa85703173bfa9169b9fa79471254d8e2ce8c736e23ba453451acb032334df98098c9199565f9853cdbfe2c24e7b05e1f76ba23410a8a0994a34441b2cf
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Filesize
4.1MB
MD5b4081fad3c5b5cf75918c1442d454a86
SHA1d78dae667b58cf723dcb69c2870e4d5f684a96fe
SHA256f43b71f2300cc8b558518fa0f5b3530ceb43a02e2d45bd91bde38441021215a4
SHA512c218bc6e9d4fca4070fdf0263cf7942c77d5711c9ee58a0e4b362559ec6d7bda6492d64d9c495e5781d3469d3ba3e2340628ed3da4237a055083295b11795a0f
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec