Analysis
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max time kernel
150s -
max time network
142s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
25-04-2024 07:17
Static task
static1
Behavioral task
behavioral1
Sample
872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe
Resource
win10v2004-20240412-en
General
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Target
872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe
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Size
4.2MB
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MD5
d5f0ae5281207278ce25c6f64eab1df5
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SHA1
ce716504c1f43c697b88026a243049f7efabada6
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SHA256
872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171
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SHA512
296e5927b766759b4e61fd5ec74c525ba0131934d822a3f6666b2ce9e7754fc9f49a7e1854b24521ccf1d93299657712c3dcc5e9577eb1d33c1f8f9a3b25fb06
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SSDEEP
98304:9Psj8nM8f9N7dpNQ5A13kFnblxOFQG3eoyMtxZa:xKe9pO6ublAFHdDtxI
Malware Config
Signatures
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Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral2/memory/2276-2-0x00000000052A0000-0x0000000005B8B000-memory.dmp family_glupteba behavioral2/memory/2276-3-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/2276-43-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/2276-45-0x00000000052A0000-0x0000000005B8B000-memory.dmp family_glupteba behavioral2/memory/2988-48-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/2988-95-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/2988-145-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/236-175-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/236-239-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/236-251-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/236-255-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/236-259-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/236-262-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/236-266-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/236-270-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/236-274-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/236-278-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba behavioral2/memory/236-282-0x0000000000400000-0x000000000300A000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 3964 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 236 csrss.exe 1104 injector.exe 4864 windefender.exe 1456 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/4864-249-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1456-253-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1456-261-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1456-273-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3263309122-2820180308-3568046652-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe Set value (str) \REGISTRY\USER\S-1-5-21-3263309122-2820180308-3568046652-1000\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 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 File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log 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:
872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe -
Drops file in Windows directory 4 IoCs
Processes:
872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.execsrss.exedescription ioc process File created C:\Windows\rss\csrss.exe 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid process 1328 sc.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1384 1388 WerFault.exe 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 3568 schtasks.exe 1344 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
windefender.exe872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-121 = "SA Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs 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\26\52C64B7E\@tzres.dll,-251 = "Dateline Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2571 = "Turks and Caicos Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-932 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-302 = "Romance Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1832 = "Russia TZ 2 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1662 = "Bahia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-962 = "Paraguay Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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\26\52C64B7E\@tzres.dll,-461 = "Afghanistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-562 = "SE Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-732 = "Fiji Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-532 = "Sri Lanka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1412 = "Syria Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-161 = "Central Daylight Time" windefender.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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-871 = "Pakistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.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\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-271 = "Greenwich Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-402 = "Arabic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-831 = "SA Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exepowershell.exe872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 1388 powershell.exe 1388 powershell.exe 2276 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe 2276 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe 2164 powershell.exe 2164 powershell.exe 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe 3980 powershell.exe 3980 powershell.exe 3192 powershell.exe 3192 powershell.exe 3576 powershell.exe 3576 powershell.exe 1048 powershell.exe 1048 powershell.exe 4784 powershell.exe 4784 powershell.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe 236 csrss.exe 236 csrss.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe 236 csrss.exe 236 csrss.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe 236 csrss.exe 236 csrss.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe 1104 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 1388 powershell.exe Token: SeDebugPrivilege 2276 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe Token: SeImpersonatePrivilege 2276 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe Token: SeDebugPrivilege 2164 powershell.exe Token: SeDebugPrivilege 3980 powershell.exe Token: SeDebugPrivilege 3192 powershell.exe Token: SeDebugPrivilege 3576 powershell.exe Token: SeDebugPrivilege 1048 powershell.exe Token: SeDebugPrivilege 4784 powershell.exe Token: SeSystemEnvironmentPrivilege 236 csrss.exe Token: SeSecurityPrivilege 1328 sc.exe Token: SeSecurityPrivilege 1328 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 2276 wrote to memory of 1388 2276 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe Conhost.exe PID 2276 wrote to memory of 1388 2276 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe Conhost.exe PID 2276 wrote to memory of 1388 2276 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe Conhost.exe PID 2988 wrote to memory of 2164 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe powershell.exe PID 2988 wrote to memory of 2164 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe powershell.exe PID 2988 wrote to memory of 2164 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe powershell.exe PID 2988 wrote to memory of 892 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe cmd.exe PID 2988 wrote to memory of 892 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe cmd.exe PID 892 wrote to memory of 3964 892 cmd.exe netsh.exe PID 892 wrote to memory of 3964 892 cmd.exe netsh.exe PID 2988 wrote to memory of 3980 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe powershell.exe PID 2988 wrote to memory of 3980 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe powershell.exe PID 2988 wrote to memory of 3980 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe powershell.exe PID 2988 wrote to memory of 3192 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe powershell.exe PID 2988 wrote to memory of 3192 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe powershell.exe PID 2988 wrote to memory of 3192 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe powershell.exe PID 2988 wrote to memory of 236 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe csrss.exe PID 2988 wrote to memory of 236 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe csrss.exe PID 2988 wrote to memory of 236 2988 872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe csrss.exe PID 236 wrote to memory of 3576 236 csrss.exe powershell.exe PID 236 wrote to memory of 3576 236 csrss.exe powershell.exe PID 236 wrote to memory of 3576 236 csrss.exe powershell.exe PID 236 wrote to memory of 1048 236 csrss.exe powershell.exe PID 236 wrote to memory of 1048 236 csrss.exe powershell.exe PID 236 wrote to memory of 1048 236 csrss.exe powershell.exe PID 236 wrote to memory of 4784 236 csrss.exe powershell.exe PID 236 wrote to memory of 4784 236 csrss.exe powershell.exe PID 236 wrote to memory of 4784 236 csrss.exe powershell.exe PID 236 wrote to memory of 1104 236 csrss.exe injector.exe PID 236 wrote to memory of 1104 236 csrss.exe injector.exe PID 4864 wrote to memory of 2484 4864 windefender.exe cmd.exe PID 4864 wrote to memory of 2484 4864 windefender.exe cmd.exe PID 4864 wrote to memory of 2484 4864 windefender.exe cmd.exe PID 2484 wrote to memory of 1328 2484 cmd.exe sc.exe PID 2484 wrote to memory of 1328 2484 cmd.exe sc.exe PID 2484 wrote to memory of 1328 2484 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\872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe"C:\Users\Admin\AppData\Local\Temp\872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2276 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1388 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1388 -s 24203⤵
- Program crash
PID:1384
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C:\Users\Admin\AppData\Local\Temp\872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.exe"C:\Users\Admin\AppData\Local\Temp\872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171.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:2988 -
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:2164
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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:892 -
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:3964
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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:3980
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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:3192
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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:236 -
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:3576
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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:3568
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1732
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C:\Windows\System32\Conhost.exe\??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV15⤵PID:1388
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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:1048
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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:4784
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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:1104
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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:1344
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4864 -
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:2484 -
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:1328
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1388 -ip 13881⤵PID:3048
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1456
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
MD5147d5c5d405b11cf508b82de16dd29eb
SHA1518c2e7f16c2fbebfe31ca84a0e9f5786a3cfc6c
SHA25679c6b54c164f05b5e81eb5017c1d487c9c7d498160bcf53ff1a3269576e2450a
SHA512009d10d490136afd73c231b37625748f50ce3466a51e42e6cdbcbe152d61362835c8029917ae7d28db5cb1e75b8a895af69f6fb8fca42b31f56fb813cec40cfa
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54f023d333b96a7607354bda83427b9bc
SHA16ceba249fe4df6c08d13ba95af7eee0b6730378e
SHA256b548db24853683cb3d6276164220d1ea1b311af14864a512be94be93d1e0896d
SHA512046e6669923b0170a2d291a115b6997eaf8bd0fd40a918a01c2fc34e22d95e369d99dbd152d2c1f6a7e551ca4ce4f37c955eb3260f4cfb76e0006b8ad94032ee
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54203d19856eddcdc0a1f2842cf101210
SHA1448dbb95d9716d3c57c84cd0c09c6f789e83784a
SHA256ce9ff77b2ca2436b414e56ff35db57e6d32c7e62d1ca9bebe2c4d3e432d90ea3
SHA5125aa4828e11078bdb5df648706008650e7724c5235f1be95117c098c6d5b59629ed6db47f01f8fcfdecda55763c7896142322f571888553969ef38b2670de6093
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52a1f6f548ecd8a9d0aa9fcaea2df0eb9
SHA16e554748e6904a61954c2dedddd8850c3b14efd3
SHA2561b31cdd1b27b67ac9b266ccec9e28c830535833237ec5cd60cc3fe98056ec86f
SHA512d580fb8847c94a706103d37298c8dc7df7b828760a91f5a96d07f4a2b42df8dcd0ceb93cd73efa8aad64cd2b04a6f98d9f163dcab1ecadf038cd554892428bcd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bb543358d9ac266ea050562f10f2d6f1
SHA158dbc662deab1a208c6669229afe902702df9ac2
SHA256bdc4c084330ecf5135ddf88294e1091059d2f776b0f4571f94bcd3293915b2f7
SHA51275ebd1042e9d23fc5661440043d188a005006ce33c282d27626a6c1ca851d37394237561b10290a4d5f48e646512d1d58ddec5bb56469d5e06cf136d6b582401
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Filesize
4.2MB
MD5d5f0ae5281207278ce25c6f64eab1df5
SHA1ce716504c1f43c697b88026a243049f7efabada6
SHA256872bbef0cacbae9ed09d525bf507fa7b3261d30fe805b78d6c856a27f8501171
SHA512296e5927b766759b4e61fd5ec74c525ba0131934d822a3f6666b2ce9e7754fc9f49a7e1854b24521ccf1d93299657712c3dcc5e9577eb1d33c1f8f9a3b25fb06
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec