Analysis
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max time kernel
150s -
max time network
126s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
15/05/2024, 23:40
Static task
static1
Behavioral task
behavioral1
Sample
b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe
Resource
win10v2004-20240508-en
General
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Target
b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe
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Size
4.1MB
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MD5
af9cc622d3f841a382911e6a5c33a3d3
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SHA1
cd26d9543d72a49bd063d3fd6da530353f4013da
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SHA256
b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7
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SHA512
e6a9d8b03a8834b9530bb3d9343bb0d90b71691c90b666a6062bb8547f949cf1dec8a83f97dd49a46ae7709e0693f1c8b4c21e727bec8646b745c2aff97f677c
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SSDEEP
98304:Hsj80k8u7e4te7QNzi5j0edbbHwu+w5lmM0XQnF:Hg9u7eueIzil0SbrHmM00
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral1/memory/100-2-0x0000000004CF0000-0x00000000055DB000-memory.dmp family_glupteba behavioral1/memory/100-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/100-26-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/100-58-0x0000000004CF0000-0x00000000055DB000-memory.dmp family_glupteba behavioral1/memory/100-56-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/100-59-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2896-83-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/2896-136-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/3996-161-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/3996-219-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/3996-229-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/3996-231-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/3996-234-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/3996-238-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/3996-241-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/3996-243-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/3996-246-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/3996-250-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral1/memory/3996-253-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 5104 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3996 csrss.exe 4904 injector.exe 628 windefender.exe 4884 windefender.exe -
resource yara_rule behavioral1/files/0x000800000002341d-223.dat upx behavioral1/memory/628-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/628-228-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4884-232-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4884-237-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File 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.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.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 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 1076 sc.exe -
pid Process 1956 powershell.exe 2452 powershell.exe 1084 powershell.exe 628 powershell.exe 1220 powershell.exe 4956 powershell.exe 5016 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4592 schtasks.exe 4972 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-282 = "Central Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-891 = "Morocco Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-172 = "Central Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1411 = "Syria Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-681 = "E. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-111 = "Eastern Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-162 = "Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1802 = "Line Islands Standard Time" windefender.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-841 = "Argentina Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-365 = "Middle East Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-871 = "Pakistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-292 = "Central European Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-491 = "India Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1956 powershell.exe 1956 powershell.exe 100 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 100 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 2452 powershell.exe 2452 powershell.exe 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 1084 powershell.exe 1084 powershell.exe 628 powershell.exe 628 powershell.exe 1220 powershell.exe 1220 powershell.exe 4956 powershell.exe 4956 powershell.exe 5016 powershell.exe 5016 powershell.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe 3996 csrss.exe 3996 csrss.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe 3996 csrss.exe 3996 csrss.exe 4904 injector.exe 4904 injector.exe 3996 csrss.exe 3996 csrss.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe 4904 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1956 powershell.exe Token: SeDebugPrivilege 100 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe Token: SeImpersonatePrivilege 100 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe Token: SeDebugPrivilege 2452 powershell.exe Token: SeDebugPrivilege 1084 powershell.exe Token: SeDebugPrivilege 628 powershell.exe Token: SeDebugPrivilege 1220 powershell.exe Token: SeDebugPrivilege 4956 powershell.exe Token: SeDebugPrivilege 5016 powershell.exe Token: SeSystemEnvironmentPrivilege 3996 csrss.exe Token: SeSecurityPrivilege 1076 sc.exe Token: SeSecurityPrivilege 1076 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 100 wrote to memory of 1956 100 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 93 PID 100 wrote to memory of 1956 100 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 93 PID 100 wrote to memory of 1956 100 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 93 PID 2896 wrote to memory of 2452 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 99 PID 2896 wrote to memory of 2452 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 99 PID 2896 wrote to memory of 2452 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 99 PID 2896 wrote to memory of 1184 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 102 PID 2896 wrote to memory of 1184 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 102 PID 1184 wrote to memory of 5104 1184 cmd.exe 104 PID 1184 wrote to memory of 5104 1184 cmd.exe 104 PID 2896 wrote to memory of 1084 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 105 PID 2896 wrote to memory of 1084 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 105 PID 2896 wrote to memory of 1084 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 105 PID 2896 wrote to memory of 628 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 107 PID 2896 wrote to memory of 628 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 107 PID 2896 wrote to memory of 628 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 107 PID 2896 wrote to memory of 3996 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 110 PID 2896 wrote to memory of 3996 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 110 PID 2896 wrote to memory of 3996 2896 b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe 110 PID 3996 wrote to memory of 1220 3996 csrss.exe 111 PID 3996 wrote to memory of 1220 3996 csrss.exe 111 PID 3996 wrote to memory of 1220 3996 csrss.exe 111 PID 3996 wrote to memory of 4956 3996 csrss.exe 117 PID 3996 wrote to memory of 4956 3996 csrss.exe 117 PID 3996 wrote to memory of 4956 3996 csrss.exe 117 PID 3996 wrote to memory of 5016 3996 csrss.exe 119 PID 3996 wrote to memory of 5016 3996 csrss.exe 119 PID 3996 wrote to memory of 5016 3996 csrss.exe 119 PID 3996 wrote to memory of 4904 3996 csrss.exe 121 PID 3996 wrote to memory of 4904 3996 csrss.exe 121 PID 628 wrote to memory of 2136 628 windefender.exe 127 PID 628 wrote to memory of 2136 628 windefender.exe 127 PID 628 wrote to memory of 2136 628 windefender.exe 127 PID 2136 wrote to memory of 1076 2136 cmd.exe 128 PID 2136 wrote to memory of 1076 2136 cmd.exe 128 PID 2136 wrote to memory of 1076 2136 cmd.exe 128 -
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\b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe"C:\Users\Admin\AppData\Local\Temp\b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:100 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1956
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C:\Users\Admin\AppData\Local\Temp\b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.exe"C:\Users\Admin\AppData\Local\Temp\b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7.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:2896 -
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:2452
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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:1184 -
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:5104
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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:1084
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:628
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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:3996 -
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:1220
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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:4592
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4524
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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:4956
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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:5016
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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:4904
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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:4972
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:628 -
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:2136 -
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:1076
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4884
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
MD5c5562884065c0c0796f0d75430ed4fda
SHA162cf5dff39f6de49798b52ccefab407de11ce38b
SHA25692274b5ed5af8f311b554302c623df06c25964434141cd50e434a0efc680882d
SHA512f2e96027d6617d457a8a342ac8a606bf36692eb818fb0d2d22b9a8b16556a094f5672b02f9cc9d29d1b4358c4a22b0d2faebae19758cb6e35a709e1f3a7095c9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD564aa72348f886ac596f9d8976862f317
SHA1c0f0c9d1721ede1a2e7928f68f4ad3e04e897ec2
SHA2568ab2f9593c54c6965fbe40f32ce5e816e294c742dbea550c3581cedc4c45c70f
SHA512f0c301181b1506e65c9d7c6316ad76aa70c32ffcf549df69f727cc26a7f8ccd98c5100d0276a2edbd9e66a6770b8fc381ac9e9adbf89fbee4bdaa2860008d3ba
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5edba9d358613901d76568675a514fa1d
SHA17c1b67ade1ff3c6a1d1bbf1e71110bf43c6391dc
SHA25662aa551ecedacae8e2cf8052fd366a6dae14373f988fe970e3057ad06e29f6c3
SHA512cf529dad6a44d39b2877c8e4577bb811f4757a8df502c9bb6498ab68ca411c95976f7033aeec11243c31e62c3f61fdcfa5580bf4fc4016464af3af65bc98d59d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55074a2706d39f2f39e76e0ba439c9407
SHA14f9f04310f8e911fe3024db657a8d2e22ab65f01
SHA2561aab1fbf3e5e3a465d0bcc1eb4716a73e892a05085d7815a07b3c1dd6add8b7c
SHA5120f5f7e10638209cb23314801f4de08c8a8e343e554b19624d98ca38e8879f0c235fcbb1d69de032108da98a02a11fff929c60d14d805b7964e17615cab53ca45
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cc2bd5b2a79aa32cf38633b7c0c4fff4
SHA1979bef4cc36791f2446132de80b5aea62e0612e9
SHA256b176dc3bce6a131466f9421727a7f4667d3b5c45fbcab65f2cd874fc93219959
SHA512d79f18ea564cca19788542e1d631451ee70fe9d6d184b2d9f4e3c286883530bbc3bf58cc69c8f049d44b7d9c0473851e817e2fbe4355f4c6ddef18d2966c4148
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Filesize
4.1MB
MD5af9cc622d3f841a382911e6a5c33a3d3
SHA1cd26d9543d72a49bd063d3fd6da530353f4013da
SHA256b1c4b0c2235adf7a98b0d580230b26f61b3039d3bf1f297dbf82cca74cc8fcc7
SHA512e6a9d8b03a8834b9530bb3d9343bb0d90b71691c90b666a6062bb8547f949cf1dec8a83f97dd49a46ae7709e0693f1c8b4c21e727bec8646b745c2aff97f677c
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec