Analysis
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max time kernel
152s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
19-05-2024 14:05
Static task
static1
Behavioral task
behavioral1
Sample
a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe
Resource
win10v2004-20240226-en
General
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Target
a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe
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Size
4.1MB
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MD5
3a1f0ccd7581c4d3f50f1de795b2e483
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SHA1
5290e1c4aad1f21eb45ac175a90292a81e75eed0
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SHA256
a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c
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SHA512
e9a7bb02d67c93f5803ca7669bd3db8b2efc283688cceef582ea6afb132133daa99702a8617a4c011b584369dddbff2440db1f2ce4d91216eb4a5c0ac101dc81
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SSDEEP
98304:YuOdAWE/bfbxbxBimum48oJjLrUZhWcgWy75MTps2CObMUZCzBSe:YuOpIddBi3V8Ojm7gWylM939C/
Malware Config
Signatures
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Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral1/memory/3868-2-0x0000000004AA0000-0x000000000538B000-memory.dmp family_glupteba behavioral1/memory/3868-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3868-5-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/3868-25-0x0000000004AA0000-0x000000000538B000-memory.dmp family_glupteba behavioral1/memory/3868-29-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3868-53-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/3868-86-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4980-113-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4980-140-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4884-166-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4884-194-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4884-218-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4884-230-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4884-240-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4884-243-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4884-246-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4884-249-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4884-252-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 3020 netsh.exe -
Executes dropped EXE 5 IoCs
Processes:
csrss.exeinjector.exeinjector.exewindefender.exewindefender.exepid Process 4884 csrss.exe 1188 injector.exe 4332 injector.exe 2236 windefender.exe 316 windefender.exe -
Processes:
resource yara_rule behavioral1/files/0x000400000000070d-233.dat upx behavioral1/memory/2236-235-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/2236-238-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/316-241-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/316-247-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\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\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:
a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe -
Drops file in Windows directory 4 IoCs
Processes:
a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe File created C:\Windows\rss\csrss.exe a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.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 752 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4760 powershell.exe 436 powershell.exe 5044 powershell.exe 2860 powershell.exe 5108 powershell.exe 4524 powershell.exe 856 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 1908 schtasks.exe 1200 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exewindefender.exea5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust 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\22\52C64B7E\@tzres.dll,-632 = "Tokyo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates 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\22\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2002 = "Cabo Verde Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-531 = "Sri Lanka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-211 = "Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-122 = "SA Pacific Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\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\22\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-302 = "Romance Standard Time" windefender.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\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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\22\52C64B7E\@tzres.dll,-2872 = "Magallanes Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-3142 = "South Sudan Standard Time" windefender.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\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-402 = "Arabic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-192 = "Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-191 = "Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-751 = "Tonga Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe Key created \REGISTRY\USER\.DEFAULT\Software\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\22\52C64B7E\@tzres.dll,-449 = "Azerbaijan Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exea5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exepowershell.exea5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.exeinjector.execsrss.exepid Process 856 powershell.exe 856 powershell.exe 3868 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 3868 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 4760 powershell.exe 4760 powershell.exe 4760 powershell.exe 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 436 powershell.exe 436 powershell.exe 436 powershell.exe 5044 powershell.exe 5044 powershell.exe 5044 powershell.exe 2860 powershell.exe 2860 powershell.exe 2860 powershell.exe 5108 powershell.exe 5108 powershell.exe 5108 powershell.exe 4524 powershell.exe 4524 powershell.exe 4524 powershell.exe 1188 injector.exe 1188 injector.exe 4332 injector.exe 4332 injector.exe 1188 injector.exe 1188 injector.exe 4332 injector.exe 4332 injector.exe 1188 injector.exe 1188 injector.exe 4332 injector.exe 4332 injector.exe 4884 csrss.exe 4884 csrss.exe 1188 injector.exe 1188 injector.exe 4332 injector.exe 4332 injector.exe 1188 injector.exe 1188 injector.exe 4332 injector.exe 4332 injector.exe 1188 injector.exe 1188 injector.exe 4332 injector.exe 4332 injector.exe 4884 csrss.exe 4884 csrss.exe 1188 injector.exe 1188 injector.exe 4332 injector.exe 4332 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exea5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 856 powershell.exe Token: SeDebugPrivilege 3868 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe Token: SeImpersonatePrivilege 3868 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe Token: SeDebugPrivilege 4760 powershell.exe Token: SeDebugPrivilege 436 powershell.exe Token: SeDebugPrivilege 5044 powershell.exe Token: SeDebugPrivilege 2860 powershell.exe Token: SeDebugPrivilege 5108 powershell.exe Token: SeDebugPrivilege 4524 powershell.exe Token: SeSystemEnvironmentPrivilege 4884 csrss.exe Token: SeSecurityPrivilege 752 sc.exe Token: SeSecurityPrivilege 752 sc.exe -
Suspicious use of WriteProcessMemory 38 IoCs
Processes:
a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exea5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 3868 wrote to memory of 856 3868 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 90 PID 3868 wrote to memory of 856 3868 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 90 PID 3868 wrote to memory of 856 3868 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 90 PID 4980 wrote to memory of 4760 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 99 PID 4980 wrote to memory of 4760 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 99 PID 4980 wrote to memory of 4760 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 99 PID 4980 wrote to memory of 1908 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 103 PID 4980 wrote to memory of 1908 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 103 PID 1908 wrote to memory of 3020 1908 cmd.exe 105 PID 1908 wrote to memory of 3020 1908 cmd.exe 105 PID 4980 wrote to memory of 436 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 106 PID 4980 wrote to memory of 436 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 106 PID 4980 wrote to memory of 436 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 106 PID 4980 wrote to memory of 5044 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 108 PID 4980 wrote to memory of 5044 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 108 PID 4980 wrote to memory of 5044 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 108 PID 4980 wrote to memory of 4884 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 111 PID 4980 wrote to memory of 4884 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 111 PID 4980 wrote to memory of 4884 4980 a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe 111 PID 4884 wrote to memory of 2860 4884 csrss.exe 112 PID 4884 wrote to memory of 2860 4884 csrss.exe 112 PID 4884 wrote to memory of 2860 4884 csrss.exe 112 PID 4884 wrote to memory of 5108 4884 csrss.exe 117 PID 4884 wrote to memory of 5108 4884 csrss.exe 117 PID 4884 wrote to memory of 5108 4884 csrss.exe 117 PID 4884 wrote to memory of 4524 4884 csrss.exe 120 PID 4884 wrote to memory of 4524 4884 csrss.exe 120 PID 4884 wrote to memory of 4524 4884 csrss.exe 120 PID 4884 wrote to memory of 1188 4884 csrss.exe 122 PID 4884 wrote to memory of 1188 4884 csrss.exe 122 PID 4884 wrote to memory of 4332 4884 csrss.exe 124 PID 4884 wrote to memory of 4332 4884 csrss.exe 124 PID 2236 wrote to memory of 2124 2236 windefender.exe 130 PID 2236 wrote to memory of 2124 2236 windefender.exe 130 PID 2236 wrote to memory of 2124 2236 windefender.exe 130 PID 2124 wrote to memory of 752 2124 cmd.exe 131 PID 2124 wrote to memory of 752 2124 cmd.exe 131 PID 2124 wrote to memory of 752 2124 cmd.exe 131 -
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\a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe"C:\Users\Admin\AppData\Local\Temp\a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3868 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:856
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C:\Users\Admin\AppData\Local\Temp\a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.exe"C:\Users\Admin\AppData\Local\Temp\a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c.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:4980 -
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:4760
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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:1908 -
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:3020
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:436
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5044
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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:4884 -
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:2860
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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:1908
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1596
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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:5108
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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:4524
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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:1188
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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:4332
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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:1200
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2236 -
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:2124 -
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:752
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3820 --field-trial-handle=2264,i,15001568551143786084,90255922961447677,262144 --variations-seed-version /prefetch:81⤵PID:2648
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:316
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d6312ce07513f9a2beda586194fc2990
SHA15e0e7d1af8bc753f10f63c35f3e89bcf68d54b07
SHA2562db2ef30a1666571dba5020e49c6a4b173fd63f1ff7ddb0ab2f899262717c296
SHA51222bf813288059d2e9444182f121322563c475e4500a2c7a726b3cbebb219878f1231174391f116e841e870b024e3664b048ae3d380d3be2ebb90bbaf51fac3bf
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD598c0f831e8ddd08331cfb2fff03bddc9
SHA1e3e9fd8862556e7f89ed9e4b2c6b22ba944e9850
SHA25673f7f4d04fd56770e51ef4ece281d7d106050ef5007f8311840d8242d80669cc
SHA51233e741e589d449eb2090d2617001742282024adf8c34ec46448e0de5fea2dc864f83f3b4fff61f99775c36ded66ecd50405b0c9e2de3a2ffc8c23751b683f7b4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f21181c12ea869d026c1b86da1c98046
SHA15e82d1f6b1cd379faffa9d415d65ae38c183ac63
SHA2561eb864e80b49ae8c4b24ba4cecee873dc9bc1e1a4089cdee2c4d402559ff78eb
SHA5122ba3181c04dcbe2bc10d086bb884b65642c3e8cc851864a7e7ba0c4bf057331645704cee05a11fac29a15539ee1e3be765cb19981bbc5d696d76b98072609ce6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f12b379d85873d1e575606e7f9a8bde8
SHA14b39dba2de0e82f0dd7f49e42dda51badf0d5c30
SHA256ec8bbc1776e0ccb4e3d3a67aec737d48f5772fcc15f94b2fd0fa12c2909c6b0c
SHA5122823133baabddead67d6fbfe8e7d66eed2dd2bd9dcee81811aee877e9a725233094bd365ef2523e721ff7e8d2213ad058f63c03a92479ab3fa8a38dec8ee4226
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f475e011f926887dee681b4830aced34
SHA14a3a94033bc926f8a50eb0000d75945802fee6e8
SHA256c31e4da0084bc960448b4dd5051232c78e279c31c77adfdaab70a7f99f11960b
SHA51292ead34fb95c512595c610b6ea0851232361a5b28a0f78e163a33ba10c70451ee53bc0ee47c1491aabee4440b132a35ee5b085314c502148c00a7f947144d1ac
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Filesize
4.1MB
MD53a1f0ccd7581c4d3f50f1de795b2e483
SHA15290e1c4aad1f21eb45ac175a90292a81e75eed0
SHA256a5515fcc45fb2fd40e5444bb38320c73eaf99d66c09796ae5722dfbae37ca57c
SHA512e9a7bb02d67c93f5803ca7669bd3db8b2efc283688cceef582ea6afb132133daa99702a8617a4c011b584369dddbff2440db1f2ce4d91216eb4a5c0ac101dc81
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec