Analysis
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max time kernel
150s -
max time network
125s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
24-04-2024 16:32
Static task
static1
Behavioral task
behavioral1
Sample
599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe
Resource
win10v2004-20240412-en
General
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Target
599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe
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Size
4.1MB
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MD5
7c4bd9937c6d7feb773633119e28dbfa
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SHA1
27c08aa933b523d0daf97a50a4f9b5db7a8de33d
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SHA256
599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7
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SHA512
0d23ac543f6060d2795a77592cbdfa47493cd890c59709a6aeb9916aaea5ea33294f427411cb58351f9e9e88a8308156e687b4b89c45a1c4d19f5ed39747e75d
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SSDEEP
98304:dFddrpuoRE7tl1yJ8vae/QmLpm2XHwIZYQzHZc5g5rp30lCUV:nLdBQ1yJ8Sedm2XHUQNc5XgM
Malware Config
Signatures
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Glupteba payload 17 IoCs
Processes:
resource yara_rule behavioral2/memory/3856-2-0x0000000006730000-0x000000000701B000-memory.dmp family_glupteba behavioral2/memory/3856-48-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/1408-143-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/4064-145-0x0000000006AA0000-0x000000000738B000-memory.dmp family_glupteba behavioral2/memory/4064-236-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/4064-245-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/4064-246-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/4064-249-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/4064-251-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/4064-253-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/4064-255-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/4064-257-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/4064-259-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/4064-261-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/4064-263-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/4064-265-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/4064-267-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 2000 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 4064 csrss.exe 3852 injector.exe 3720 windefender.exe 4448 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/3720-244-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4448-247-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4448-250-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
csrss.exe599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.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\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe -
Drops file in Windows directory 4 IoCs
Processes:
599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.execsrss.exedescription ioc process File opened for modification C:\Windows\rss 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe File created C:\Windows\rss\csrss.exe 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.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 3684 sc.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 2832 1408 WerFault.exe 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.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 2336 schtasks.exe 1868 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exe599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exewindefender.exepowershell.exepowershell.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust 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\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-291 = "Central European Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2631 = "Norfolk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-512 = "Central Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-105 = "Central Brazilian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2872 = "Magallanes Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust 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,-662 = "Cen. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-434 = "Georgian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1661 = "Bahia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-292 = "Central European Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.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,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.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,-652 = "AUS Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2431 = "Cuba Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time" 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.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,-1932 = "Russia TZ 11 Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs 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,-271 = "Greenwich Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2141 = "Transbaikal Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.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\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exepowershell.exe599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 2216 powershell.exe 2216 powershell.exe 3856 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe 3856 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe 3280 powershell.exe 3280 powershell.exe 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe 2456 powershell.exe 2456 powershell.exe 1888 powershell.exe 1888 powershell.exe 536 powershell.exe 536 powershell.exe 2508 powershell.exe 2508 powershell.exe 932 powershell.exe 932 powershell.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe 4064 csrss.exe 4064 csrss.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe 4064 csrss.exe 4064 csrss.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe 4064 csrss.exe 4064 csrss.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe 3852 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 2216 powershell.exe Token: SeDebugPrivilege 3856 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe Token: SeImpersonatePrivilege 3856 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe Token: SeDebugPrivilege 3280 powershell.exe Token: SeDebugPrivilege 2456 powershell.exe Token: SeDebugPrivilege 1888 powershell.exe Token: SeDebugPrivilege 536 powershell.exe Token: SeDebugPrivilege 2508 powershell.exe Token: SeDebugPrivilege 932 powershell.exe Token: SeSystemEnvironmentPrivilege 4064 csrss.exe Token: SeSecurityPrivilege 3684 sc.exe Token: SeSecurityPrivilege 3684 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 3856 wrote to memory of 2216 3856 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe powershell.exe PID 3856 wrote to memory of 2216 3856 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe powershell.exe PID 3856 wrote to memory of 2216 3856 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe powershell.exe PID 1408 wrote to memory of 3280 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe powershell.exe PID 1408 wrote to memory of 3280 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe powershell.exe PID 1408 wrote to memory of 3280 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe powershell.exe PID 1408 wrote to memory of 3120 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe cmd.exe PID 1408 wrote to memory of 3120 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe cmd.exe PID 3120 wrote to memory of 2000 3120 cmd.exe netsh.exe PID 3120 wrote to memory of 2000 3120 cmd.exe netsh.exe PID 1408 wrote to memory of 2456 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe powershell.exe PID 1408 wrote to memory of 2456 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe powershell.exe PID 1408 wrote to memory of 2456 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe powershell.exe PID 1408 wrote to memory of 1888 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe powershell.exe PID 1408 wrote to memory of 1888 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe powershell.exe PID 1408 wrote to memory of 1888 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe powershell.exe PID 1408 wrote to memory of 4064 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe csrss.exe PID 1408 wrote to memory of 4064 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe csrss.exe PID 1408 wrote to memory of 4064 1408 599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe csrss.exe PID 4064 wrote to memory of 536 4064 csrss.exe powershell.exe PID 4064 wrote to memory of 536 4064 csrss.exe powershell.exe PID 4064 wrote to memory of 536 4064 csrss.exe powershell.exe PID 4064 wrote to memory of 2508 4064 csrss.exe powershell.exe PID 4064 wrote to memory of 2508 4064 csrss.exe powershell.exe PID 4064 wrote to memory of 2508 4064 csrss.exe powershell.exe PID 4064 wrote to memory of 932 4064 csrss.exe powershell.exe PID 4064 wrote to memory of 932 4064 csrss.exe powershell.exe PID 4064 wrote to memory of 932 4064 csrss.exe powershell.exe PID 4064 wrote to memory of 3852 4064 csrss.exe injector.exe PID 4064 wrote to memory of 3852 4064 csrss.exe injector.exe PID 3720 wrote to memory of 440 3720 windefender.exe cmd.exe PID 3720 wrote to memory of 440 3720 windefender.exe cmd.exe PID 3720 wrote to memory of 440 3720 windefender.exe cmd.exe PID 440 wrote to memory of 3684 440 cmd.exe sc.exe PID 440 wrote to memory of 3684 440 cmd.exe sc.exe PID 440 wrote to memory of 3684 440 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\599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe"C:\Users\Admin\AppData\Local\Temp\599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3856 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2216 -
C:\Users\Admin\AppData\Local\Temp\599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.exe"C:\Users\Admin\AppData\Local\Temp\599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7.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:1408 -
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:3280 -
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:3120 -
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:2000 -
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:2456 -
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:1888 -
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:4064 -
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:536 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:2336 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:5040
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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:2508 -
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:932 -
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:3852 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:1868 -
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3720 -
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:440 -
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:3684 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1408 -s 6843⤵
- Program crash
PID:2832
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1408 -ip 14081⤵PID:2388
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4448
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56a43f4ef80e356c7d43a20527202c8e5
SHA13a7699892c31367f5eede6cd62b2518d063cb332
SHA256839e146f3bdecaf7b2b552a098ba871e2877a7db1871d222cbc7ac50dfef4243
SHA512dc77f733389b313daef92649bf9dd5670959b1239dd1eaacc3436be5a4df6d131b505bd8b162067e017b602011845f9b844342e030da3538c6befa9917760e6e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e15b53661c21cd675ba9eb9396d8a6c6
SHA1cb3afda67fa50612f5ac9e444f4a38784db48e96
SHA2560e39790c4a55015c114534d3717e8f5a218408123b5810d5ef38e1ea99774c71
SHA512f6697857333876e659fa0ffb7ca3b7f54f3524d3d578fe7e17030839212dc519c9b17dd01a46dea076eefb3853012060aa58824b41b0dd3b6d5bdb8b9b38d225
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD576a37f544d828d2c5ddd676ff533eb4e
SHA147e2dfa35e14655f4ecb3d573d92dd61ec44464f
SHA256bb9ed097bfc59f7b7778be09ef14cada12ffb146bd54e53b52c4b142737339ed
SHA512216304a5e953c42fd99907afffed052577d3be14dfcd580dcd33e10b967de5f483637b74a8a10f7bbc96a6dac8d7c56f127b75e97609da71707403fe5cb305f6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD507e8240842a60581c0d3a740080db485
SHA1e98e5e7e8dd1f62ec0e26e0e448f227d051a5638
SHA256927ccd04739a3f55f160ff33ea05725425b37b5bef053e8006011aa9397c20ac
SHA5120275d18b89d383b7d2bcca002879066738bdc440ae908b115653fc27d84f26f676dd23a1d54025184ef8e608bd93538d2972c177318454d3362c4e47f35ad38a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fcfc9566a464b73c6a9d5f6583638170
SHA168f0d0e7389f9281785bec205ca78d4b55b87574
SHA25643a02c6647e1ef064039f1c7962969f17036e0560afe1d0857b2f500d8f583d2
SHA51218b759e4b3c295f3cfd4657e8195ef89eaf1ee07b76dca941f875a67742689ed1f58061c813ae1686a20cdad85ac10a463d4c964d8f63aa580db57a1249a7e12
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Filesize
4.1MB
MD57c4bd9937c6d7feb773633119e28dbfa
SHA127c08aa933b523d0daf97a50a4f9b5db7a8de33d
SHA256599a417e174f832cfa4a8485aad7bb61e482499ba15d1b4a534c7ddb36b783e7
SHA5120d23ac543f6060d2795a77592cbdfa47493cd890c59709a6aeb9916aaea5ea33294f427411cb58351f9e9e88a8308156e687b4b89c45a1c4d19f5ed39747e75d
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec